text: /*! xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
  /* vim: set ts=2: */
  /*exported XLSX */
  /*global global, exports, module, require:false, process:false, Buffer:false, ArrayBuffer:false */
  var XLSX = {};
  function make_xlsx_lib(XLSX){
  XLSX.version = '0.14.0';
  var current_codepage = 1200, current_ansi = 1252;
  /*global cptable:true, window */
  if(typeof module !== "undefined" && typeof require !== 'undefined') {
  	if(typeof cptable === 'undefined') {
  		if(typeof global !== 'undefined') global.cptable = require('./dist/cpexcel.js');
  		else if(typeof window !== 'undefined') window.cptable = require('./dist/cpexcel.js');
  	}
  }
  
  var VALID_ANSI = [ 874, 932, 936, 949, 950 ];
  for(var i = 0; i <= 8; ++i) VALID_ANSI.push(1250 + i);
  /* ECMA-376 Part I 18.4.1 charset to codepage mapping */
  var CS2CP = ({
  0:    1252, /* ANSI */
  1:   65001, /* DEFAULT */
  2:   65001, /* SYMBOL */
  77:  10000, /* MAC */
  128:   932, /* SHIFTJIS */
  129:   949, /* HANGUL */
  130:  1361, /* JOHAB */
  134:   936, /* GB2312 */
  136:   950, /* CHINESEBIG5 */
  161:  1253, /* GREEK */
  162:  1254, /* TURKISH */
  163:  1258, /* VIETNAMESE */
  177:  1255, /* HEBREW */
  178:  1256, /* ARABIC */
  186:  1257, /* BALTIC */
  204:  1251, /* RUSSIAN */
  222:   874, /* THAI */
  238:  1250, /* EASTEUROPE */
  255:  1252, /* OEM */
  69:   6969  /* MISC */
  });
  
  var set_ansi = function(cp) { if(VALID_ANSI.indexOf(cp) == -1) return; current_ansi = CS2CP[0] = cp; };
  function reset_ansi() { set_ansi(1252); }
  
  var set_cp = function(cp) { current_codepage = cp; set_ansi(cp); };
  function reset_cp() { set_cp(1200); reset_ansi(); }
  
  function char_codes(data) { var o = []; for(var i = 0, len = data.length; i < len; ++i) o[i] = data.charCodeAt(i); return o; }
  
  function utf16leread(data) {
  	var o = [];
  	for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i) + (data.charCodeAt(2*i+1)<<8));
  	return o.join("");
  }
  function utf16beread(data) {
  	var o = [];
  	for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i+1) + (data.charCodeAt(2*i)<<8));
  	return o.join("");
  }
  
  var debom = function(data) {
  	var c1 = data.charCodeAt(0), c2 = data.charCodeAt(1);
  	if(c1 == 0xFF && c2 == 0xFE) return utf16leread(data.slice(2));
  	if(c1 == 0xFE && c2 == 0xFF) return utf16beread(data.slice(2));
  	if(c1 == 0xFEFF) return data.slice(1);
  	return data;
  };
  
  var _getchar = function _gc1(x) { return String.fromCharCode(x); };
  if(typeof cptable !== 'undefined') {
  	set_cp = function(cp) { current_codepage = cp; };
  	debom = function(data) {
  		if(data.charCodeAt(0) === 0xFF && data.charCodeAt(1) === 0xFE) { return cptable.utils.decode(1200, char_codes(data.slice(2))); }
  		return data;
  	};
  	_getchar = function _gc2(x) {
  		if(current_codepage === 1200) return String.fromCharCode(x);
  		return cptable.utils.decode(current_codepage, [x&255,x>>8])[0];
  	};
  }
  var DENSE = null;
  var DIF_XL = true;
  var Base64 = (function make_b64(){
  	var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
  	return {
  		encode: function(input) {
  			var o = "";
  			var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
  			for(var i = 0; i < input.length; ) {
  				c1 = input.charCodeAt(i++);
  				e1 = (c1 >> 2);
  
  				c2 = input.charCodeAt(i++);
  				e2 = ((c1 & 3) << 4) | (c2 >> 4);
  
  				c3 = input.charCodeAt(i++);
  				e3 = ((c2 & 15) << 2) | (c3 >> 6);
  				e4 = (c3 & 63);
  				if (isNaN(c2)) { e3 = e4 = 64; }
  				else if (isNaN(c3)) { e4 = 64; }
  				o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
  			}
  			return o;
  		},
  		decode: function b64_decode(input) {
  			var o = "";
  			var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
  			input = input.replace(/[^\w\+\/\=]/g, "");
  			for(var i = 0; i < input.length;) {
  				e1 = map.indexOf(input.charAt(i++));
  				e2 = map.indexOf(input.charAt(i++));
  				c1 = (e1 << 2) | (e2 >> 4);
  				o += String.fromCharCode(c1);
  
  				e3 = map.indexOf(input.charAt(i++));
  				c2 = ((e2 & 15) << 4) | (e3 >> 2);
  				if (e3 !== 64) { o += String.fromCharCode(c2); }
  
  				e4 = map.indexOf(input.charAt(i++));
  				c3 = ((e3 & 3) << 6) | e4;
  				if (e4 !== 64) { o += String.fromCharCode(c3); }
  			}
  			return o;
  		}
  	};
  })();
  var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && !!process.versions.node);
  
  var Buffer_from = function(){};
  
  if(typeof Buffer !== 'undefined') {
  	var nbfs = !Buffer.from;
  	if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
  	Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
  	// $FlowIgnore
  	if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
  	// $FlowIgnore
  	if(!Buffer.allocUnsafe) Buffer.allocUnsafe = function(n) { return new Buffer(n); };
  }
  
  function new_raw_buf(len) {
  	/* jshint -W056 */
  	return has_buf ? Buffer.alloc(len) : new Array(len);
  	/* jshint +W056 */
  }
  
  function new_unsafe_buf(len) {
  	/* jshint -W056 */
  	return has_buf ? Buffer.allocUnsafe(len) : new Array(len);
  	/* jshint +W056 */
  }
  
  var s2a = function s2a(s) {
  	// $FlowIgnore
  	if(has_buf) return Buffer_from(s, "binary");
  	return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
  };
  
  function s2ab(s) {
  	if(typeof ArrayBuffer === 'undefined') return s2a(s);
  	var buf = new ArrayBuffer(s.length), view = new Uint8Array(buf);
  	for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
  	return buf;
  }
  
  function a2s(data) {
  	if(Array.isArray(data)) return data.map(_chr).join("");
  	var o = []; for(var i = 0; i < data.length; ++i) o[i] = _chr(data[i]); return o.join("");
  }
  
  function a2u(data) {
  	if(typeof Uint8Array === 'undefined') throw new Error("Unsupported");
  	return new Uint8Array(data);
  }
  
  function ab2a(data) {
  	if(typeof ArrayBuffer == 'undefined') throw new Error("Unsupported");
  	if(data instanceof ArrayBuffer) return ab2a(new Uint8Array(data));
  var o = new Array(data.length);
  	for(var i = 0; i < data.length; ++i) o[i] = data[i];
  	return o;
  }
  
  var bconcat = function(bufs) { return [].concat.apply([], bufs); };
  
  var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
  /* ssf.js (C) 2013-present SheetJS -- http://sheetjs.com */
  /*jshint -W041 */
  var SSF = ({});
  var make_ssf = function make_ssf(SSF){
  SSF.version = '0.10.2';
  function _strrev(x) { var o = "", i = x.length-1; while(i>=0) o += x.charAt(i--); return o; }
  function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }
  function pad0(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
  function pad_(v,d){var t=""+v;return t.length>=d?t:fill(' ',d-t.length)+t;}
  function rpad_(v,d){var t=""+v; return t.length>=d?t:t+fill(' ',d-t.length);}
  function pad0r1(v,d){var t=""+Math.round(v); return t.length>=d?t:fill('0',d-t.length)+t;}
  function pad0r2(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
  var p2_32 = Math.pow(2,32);
  function pad0r(v,d){if(v>p2_32||v<-p2_32) return pad0r1(v,d); var i = Math.round(v); return pad0r2(i,d); }
  function isgeneral(s, i) { i = i || 0; return s.length >= 7 + i && (s.charCodeAt(i)|32) === 103 && (s.charCodeAt(i+1)|32) === 101 && (s.charCodeAt(i+2)|32) === 110 && (s.charCodeAt(i+3)|32) === 101 && (s.charCodeAt(i+4)|32) === 114 && (s.charCodeAt(i+5)|32) === 97 && (s.charCodeAt(i+6)|32) === 108; }
  var days = [
  	['Sun', 'Sunday'],
  	['Mon', 'Monday'],
  	['Tue', 'Tuesday'],
  	['Wed', 'Wednesday'],
  	['Thu', 'Thursday'],
  	['Fri', 'Friday'],
  	['Sat', 'Saturday']
  ];
  var months = [
  	['J', 'Jan', 'January'],
  	['F', 'Feb', 'February'],
  	['M', 'Mar', 'March'],
  	['A', 'Apr', 'April'],
  	['M', 'May', 'May'],
  	['J', 'Jun', 'June'],
  	['J', 'Jul', 'July'],
  	['A', 'Aug', 'August'],
  	['S', 'Sep', 'September'],
  	['O', 'Oct', 'October'],
  	['N', 'Nov', 'November'],
  	['D', 'Dec', 'December']
  ];
  function init_table(t) {
  	t[0]=  'General';
  	t[1]=  '0';
  	t[2]=  '0.00';
  	t[3]=  '#,##0';
  	t[4]=  '#,##0.00';
  	t[9]=  '0%';
  	t[10]= '0.00%';
  	t[11]= '0.00E+00';
  	t[12]= '# ?/?';
  	t[13]= '# ??/??';
  	t[14]= 'm/d/yy';
  	t[15]= 'd-mmm-yy';
  	t[16]= 'd-mmm';
  	t[17]= 'mmm-yy';
  	t[18]= 'h:mm AM/PM';
  	t[19]= 'h:mm:ss AM/PM';
  	t[20]= 'h:mm';
  	t[21]= 'h:mm:ss';
  	t[22]= 'm/d/yy h:mm';
  	t[37]= '#,##0 ;(#,##0)';
  	t[38]= '#,##0 ;[Red](#,##0)';
  	t[39]= '#,##0.00;(#,##0.00)';
  	t[40]= '#,##0.00;[Red](#,##0.00)';
  	t[45]= 'mm:ss';
  	t[46]= '[h]:mm:ss';
  	t[47]= 'mmss.0';
  	t[48]= '##0.0E+0';
  	t[49]= '@';
  	t[56]= '"上午/下午 "hh"時"mm"分"ss"秒 "';
  	t[65535]= 'General';
  }
  
  var table_fmt = {};
  init_table(table_fmt);
  function frac(x, D, mixed) {
  	var sgn = x < 0 ? -1 : 1;
  	var B = x * sgn;
  	var P_2 = 0, P_1 = 1, P = 0;
  	var Q_2 = 1, Q_1 = 0, Q = 0;
  	var A = Math.floor(B);
  	while(Q_1 < D) {
  		A = Math.floor(B);
  		P = A * P_1 + P_2;
  		Q = A * Q_1 + Q_2;
  		if((B - A) < 0.00000005) break;
  		B = 1 / (B - A);
  		P_2 = P_1; P_1 = P;
  		Q_2 = Q_1; Q_1 = Q;
  	}
  	if(Q > D) { if(Q_1 > D) { Q = Q_2; P = P_2; } else { Q = Q_1; P = P_1; } }
  	if(!mixed) return [0, sgn * P, Q];
  	var q = Math.floor(sgn * P/Q);
  	return [q, sgn*P - q*Q, Q];
  }
  function parse_date_code(v,opts,b2) {
  	if(v > 2958465 || v < 0) return null;
  	var date = (v|0), time = Math.floor(86400 * (v - date)), dow=0;
  	var dout=[];
  	var out={D:date, T:time, u:86400*(v-date)-time,y:0,m:0,d:0,H:0,M:0,S:0,q:0};
  	if(Math.abs(out.u) < 1e-6) out.u = 0;
  	if(opts && opts.date1904) date += 1462;
  	if(out.u > 0.9999) {
  		out.u = 0;
  		if(++time == 86400) { out.T = time = 0; ++date; ++out.D; }
  	}
  	if(date === 60) {dout = b2 ? [1317,10,29] : [1900,2,29]; dow=3;}
  	else if(date === 0) {dout = b2 ? [1317,8,29] : [1900,1,0]; dow=6;}
  	else {
  		if(date > 60) --date;
  		/* 1 = Jan 1 1900 in Gregorian */
  		var d = new Date(1900, 0, 1);
  		d.setDate(d.getDate() + date - 1);
  		dout = [d.getFullYear(), d.getMonth()+1,d.getDate()];
  		dow = d.getDay();
  		if(date < 60) dow = (dow + 6) % 7;
  		if(b2) dow = fix_hijri(d, dout);
  	}
  	out.y = dout[0]; out.m = dout[1]; out.d = dout[2];
  	out.S = time % 60; time = Math.floor(time / 60);
  	out.M = time % 60; time = Math.floor(time / 60);
  	out.H = time;
  	out.q = dow;
  	return out;
  }
  SSF.parse_date_code = parse_date_code;
  var basedate = new Date(1899, 11, 31, 0, 0, 0);
  var dnthresh = basedate.getTime();
  var base1904 = new Date(1900, 2, 1, 0, 0, 0);
  function datenum_local(v, date1904) {
  	var epoch = v.getTime();
  	if(date1904) epoch -= 1461*24*60*60*1000;
  	else if(v >= base1904) epoch += 24*60*60*1000;
  	return (epoch - (dnthresh + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000)) / (24 * 60 * 60 * 1000);
  }
  function general_fmt_int(v) { return v.toString(10); }
  SSF._general_int = general_fmt_int;
  var general_fmt_num = (function make_general_fmt_num() {
  var gnr1 = /\.(\d*[1-9])0+$/, gnr2 = /\.0*$/, gnr4 = /\.(\d*[1-9])0+/, gnr5 = /\.0*[Ee]/, gnr6 = /(E[+-])(\d)$/;
  function gfn2(v) {
  	var w = (v<0?12:11);
  	var o = gfn5(v.toFixed(12)); if(o.length <= w) return o;
  	o = v.toPrecision(10); if(o.length <= w) return o;
  	return v.toExponential(5);
  }
  function gfn3(v) {
  	var o = v.toFixed(11).replace(gnr1,".$1");
  	if(o.length > (v<0?12:11)) o = v.toPrecision(6);
  	return o;
  }
  function gfn4(o) {
  	for(var i = 0; i != o.length; ++i) if((o.charCodeAt(i) | 0x20) === 101) return o.replace(gnr4,".$1").replace(gnr5,"E").replace("e","E").replace(gnr6,"$10$2");
  	return o;
  }
  function gfn5(o) {
  	return o.indexOf(".") > -1 ? o.replace(gnr2,"").replace(gnr1,".$1") : o;
  }
  return function general_fmt_num(v) {
  	var V = Math.floor(Math.log(Math.abs(v))*Math.LOG10E), o;
  	if(V >= -4 && V <= -1) o = v.toPrecision(10+V);
  	else if(Math.abs(V) <= 9) o = gfn2(v);
  	else if(V === 10) o = v.toFixed(10).substr(0,12);
  	else o = gfn3(v);
  	return gfn5(gfn4(o));
  };})();
  SSF._general_num = general_fmt_num;
  function general_fmt(v, opts) {
  	switch(typeof v) {
  		case 'string': return v;
  		case 'boolean': return v ? "TRUE" : "FALSE";
  		case 'number': return (v|0) === v ? general_fmt_int(v) : general_fmt_num(v);
  		case 'undefined': return "";
  		case 'object':
  			if(v == null) return "";
  			if(v instanceof Date) return format(14, datenum_local(v, opts && opts.date1904), opts);
  	}
  	throw new Error("unsupported value in General format: " + v);
  }
  SSF._general = general_fmt;
  function fix_hijri() { return 0; }
  /*jshint -W086 */
  function write_date(type, fmt, val, ss0) {
  	var o="", ss=0, tt=0, y = val.y, out, outl = 0;
  	switch(type) {
  		case 98: /* 'b' buddhist year */
  			y = val.y + 543;
  			/* falls through */
  		case 121: /* 'y' year */
  		switch(fmt.length) {
  			case 1: case 2: out = y % 100; outl = 2; break;
  			default: out = y % 10000; outl = 4; break;
  		} break;
  		case 109: /* 'm' month */
  		switch(fmt.length) {
  			case 1: case 2: out = val.m; outl = fmt.length; break;
  			case 3: return months[val.m-1][1];
  			case 5: return months[val.m-1][0];
  			default: return months[val.m-1][2];
  		} break;
  		case 100: /* 'd' day */
  		switch(fmt.length) {
  			case 1: case 2: out = val.d; outl = fmt.length; break;
  			case 3: return days[val.q][0];
  			default: return days[val.q][1];
  		} break;
  		case 104: /* 'h' 12-hour */
  		switch(fmt.length) {
  			case 1: case 2: out = 1+(val.H+11)%12; outl = fmt.length; break;
  			default: throw 'bad hour format: ' + fmt;
  		} break;
  		case 72: /* 'H' 24-hour */
  		switch(fmt.length) {
  			case 1: case 2: out = val.H; outl = fmt.length; break;
  			default: throw 'bad hour format: ' + fmt;
  		} break;
  		case 77: /* 'M' minutes */
  		switch(fmt.length) {
  			case 1: case 2: out = val.M; outl = fmt.length; break;
  			default: throw 'bad minute format: ' + fmt;
  		} break;
  		case 115: /* 's' seconds */
  			if(fmt != 's' && fmt != 'ss' && fmt != '.0' && fmt != '.00' && fmt != '.000') throw 'bad second format: ' + fmt;
  			if(val.u === 0 && (fmt == "s" || fmt == "ss")) return pad0(val.S, fmt.length);
  if(ss0 >= 2) tt = ss0 === 3 ? 1000 : 100;
  			else tt = ss0 === 1 ? 10 : 1;
  			ss = Math.round((tt)*(val.S + val.u));
  			if(ss >= 60*tt) ss = 0;
  			if(fmt === 's') return ss === 0 ? "0" : ""+ss/tt;
  			o = pad0(ss,2 + ss0);
  			if(fmt === 'ss') return o.substr(0,2);
  			return "." + o.substr(2,fmt.length-1);
  		case 90: /* 'Z' absolute time */
  		switch(fmt) {
  			case '[h]': case '[hh]': out = val.D*24+val.H; break;
  			case '[m]': case '[mm]': out = (val.D*24+val.H)*60+val.M; break;
  			case '[s]': case '[ss]': out = ((val.D*24+val.H)*60+val.M)*60+Math.round(val.S+val.u); break;
  			default: throw 'bad abstime format: ' + fmt;
  		} outl = fmt.length === 3 ? 1 : 2; break;
  		case 101: /* 'e' era */
  			out = y; outl = 1;
  	}
  	if(outl > 0) return pad0(out, outl); else return "";
  }
  /*jshint +W086 */
  function commaify(s) {
  	var w = 3;
  	if(s.length <= w) return s;
  	var j = (s.length % w), o = s.substr(0,j);
  	for(; j!=s.length; j+=w) o+=(o.length > 0 ? "," : "") + s.substr(j,w);
  	return o;
  }
  var write_num = (function make_write_num(){
  var pct1 = /%/g;
  function write_num_pct(type, fmt, val){
  	var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
  	return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
  }
  function write_num_cm(type, fmt, val){
  	var idx = fmt.length - 1;
  	while(fmt.charCodeAt(idx-1) === 44) --idx;
  	return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
  }
  function write_num_exp(fmt, val){
  	var o;
  	var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
  	if(fmt.match(/^#+0.0E\+0$/)) {
  		if(val == 0) return "0.0E+0";
  		else if(val < 0) return "-" + write_num_exp(fmt, -val);
  		var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
  		var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
  		if(ee < 0) ee += period;
  		o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
  		if(o.indexOf("e") === -1) {
  			var fakee = Math.floor(Math.log(val)*Math.LOG10E);
  			if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
  			else o += "E+" + (fakee - ee);
  			while(o.substr(0,2) === "0.") {
  				o = o.charAt(0) + o.substr(2,period) + "." + o.substr(2+period);
  				o = o.replace(/^0+([1-9])/,"$1").replace(/^0+\./,"0.");
  			}
  			o = o.replace(/\+-/,"-");
  		}
  		o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
  	} else o = val.toExponential(idx);
  	if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
  	if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
  	return o.replace("e","E");
  }
  var frac1 = /# (\?+)( ?)\/( ?)(\d+)/;
  function write_num_f1(r, aval, sign) {
  	var den = parseInt(r[4],10), rr = Math.round(aval * den), base = Math.floor(rr/den);
  	var myn = (rr - base*den), myd = den;
  	return sign + (base === 0 ? "" : ""+base) + " " + (myn === 0 ? fill(" ", r[1].length + 1 + r[4].length) : pad_(myn,r[1].length) + r[2] + "/" + r[3] + pad0(myd,r[4].length));
  }
  function write_num_f2(r, aval, sign) {
  	return sign + (aval === 0 ? "" : ""+aval) + fill(" ", r[1].length + 2 + r[4].length);
  }
  var dec1 = /^#*0*\.([0#]+)/;
  var closeparen = /\).*[0#]/;
  var phone = /\(###\) ###\\?-####/;
  function hashq(str) {
  	var o = "", cc;
  	for(var i = 0; i != str.length; ++i) switch((cc=str.charCodeAt(i))) {
  		case 35: break;
  		case 63: o+= " "; break;
  		case 48: o+= "0"; break;
  		default: o+= String.fromCharCode(cc);
  	}
  	return o;
  }
  function rnd(val, d) { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
  function dec(val, d) {
  	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
  		return 0;
  	}
  	return Math.round((val-Math.floor(val))*Math.pow(10,d));
  }
  function carry(val, d) {
  	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
  		return 1;
  	}
  	return 0;
  }
  function flr(val) { if(val < 2147483647 && val > -2147483648) return ""+(val >= 0 ? (val|0) : (val-1|0)); return ""+Math.floor(val); }
  function write_num_flt(type, fmt, val) {
  	if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
  		var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
  		if(val >= 0) return write_num_flt('n', ffmt, val);
  		return '(' + write_num_flt('n', ffmt, -val) + ')';
  	}
  	if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm(type, fmt, val);
  	if(fmt.indexOf('%') !== -1) return write_num_pct(type, fmt, val);
  	if(fmt.indexOf('E') !== -1) return write_num_exp(fmt, val);
  	if(fmt.charCodeAt(0) === 36) return "$"+write_num_flt(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
  	var o;
  	var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
  	if(fmt.match(/^00+$/)) return sign + pad0r(aval,fmt.length);
  	if(fmt.match(/^[#?]+$/)) {
  		o = pad0r(val,0); if(o === "0") o = "";
  		return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
  	}
  	if((r = fmt.match(frac1))) return write_num_f1(r, aval, sign);
  	if(fmt.match(/^#+0+$/)) return sign + pad0r(aval,fmt.length - fmt.indexOf("0"));
  	if((r = fmt.match(dec1))) {
  		o = rnd(val, r[1].length).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1])).replace(/\.(\d*)$/,function($$, $1) { return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
  		return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
  	}
  	fmt = fmt.replace(/^#+([0.])/, "$1");
  	if((r = fmt.match(/^(0*)\.(#*)$/))) {
  		return sign + rnd(aval, r[2].length).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
  	}
  	if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify(pad0r(aval,0));
  	if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
  		return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(""+(Math.floor(val) + carry(val, r[1].length))) + "." + pad0(dec(val, r[1].length),r[1].length);
  	}
  	if((r = fmt.match(/^#,#*,#0/))) return write_num_flt(type,fmt.replace(/^#,#*,/,""),val);
  	if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
  		o = _strrev(write_num_flt(type, fmt.replace(/[\\-]/g,""), val));
  		ri = 0;
  		return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
  	}
  	if(fmt.match(phone)) {
  		o = write_num_flt(type, "##########", val);
  		return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
  	}
  	var oa = "";
  	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
  		ri = Math.min(r[4].length,7);
  		ff = frac(aval, Math.pow(10,ri)-1, false);
  		o = "" + sign;
  		oa = write_num("n", r[1], ff[1]);
  		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
  		o += oa + r[2] + "/" + r[3];
  		oa = rpad_(ff[2],ri);
  		if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
  		o += oa;
  		return o;
  	}
  	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
  		ri = Math.min(Math.max(r[1].length, r[4].length),7);
  		ff = frac(aval, Math.pow(10,ri)-1, true);
  		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
  	}
  	if((r = fmt.match(/^[#0?]+$/))) {
  		o = pad0r(val, 0);
  		if(fmt.length <= o.length) return o;
  		return hashq(fmt.substr(0,fmt.length-o.length)) + o;
  	}
  	if((r = fmt.match(/^([#0?]+)\.([#0]+)$/))) {
  		o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
  		ri = o.indexOf(".");
  		var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
  		return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
  	}
  	if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
  		ri = dec(val, r[1].length);
  		return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(flr(val)).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(ri,r[1].length);
  	}
  	switch(fmt) {
  		case "###,##0.00": return write_num_flt(type, "#,##0.00", val);
  		case "###,###":
  		case "##,###":
  		case "#,###": var x = commaify(pad0r(aval,0)); return x !== "0" ? sign + x : "";
  		case "###,###.00": return write_num_flt(type, "###,##0.00",val).replace(/^0\./,".");
  		case "#,###.00": return write_num_flt(type, "#,##0.00",val).replace(/^0\./,".");
  		default:
  	}
  	throw new Error("unsupported format |" + fmt + "|");
  }
  function write_num_cm2(type, fmt, val){
  	var idx = fmt.length - 1;
  	while(fmt.charCodeAt(idx-1) === 44) --idx;
  	return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
  }
  function write_num_pct2(type, fmt, val){
  	var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
  	return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
  }
  function write_num_exp2(fmt, val){
  	var o;
  	var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
  	if(fmt.match(/^#+0.0E\+0$/)) {
  		if(val == 0) return "0.0E+0";
  		else if(val < 0) return "-" + write_num_exp2(fmt, -val);
  		var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
  		var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
  		if(ee < 0) ee += period;
  		o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
  		if(!o.match(/[Ee]/)) {
  			var fakee = Math.floor(Math.log(val)*Math.LOG10E);
  			if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
  			else o += "E+" + (fakee - ee);
  			o = o.replace(/\+-/,"-");
  		}
  		o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
  	} else o = val.toExponential(idx);
  	if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
  	if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
  	return o.replace("e","E");
  }
  function write_num_int(type, fmt, val) {
  	if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
  		var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
  		if(val >= 0) return write_num_int('n', ffmt, val);
  		return '(' + write_num_int('n', ffmt, -val) + ')';
  	}
  	if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm2(type, fmt, val);
  	if(fmt.indexOf('%') !== -1) return write_num_pct2(type, fmt, val);
  	if(fmt.indexOf('E') !== -1) return write_num_exp2(fmt, val);
  	if(fmt.charCodeAt(0) === 36) return "$"+write_num_int(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
  	var o;
  	var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
  	if(fmt.match(/^00+$/)) return sign + pad0(aval,fmt.length);
  	if(fmt.match(/^[#?]+$/)) {
  		o = (""+val); if(val === 0) o = "";
  		return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
  	}
  	if((r = fmt.match(frac1))) return write_num_f2(r, aval, sign);
  	if(fmt.match(/^#+0+$/)) return sign + pad0(aval,fmt.length - fmt.indexOf("0"));
  	if((r = fmt.match(dec1))) {
  o = (""+val).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1]));
  		o = o.replace(/\.(\d*)$/,function($$, $1) {
  return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
  		return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
  	}
  	fmt = fmt.replace(/^#+([0.])/, "$1");
  	if((r = fmt.match(/^(0*)\.(#*)$/))) {
  		return sign + (""+aval).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
  	}
  	if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify((""+aval));
  	if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
  		return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify((""+val)) + "." + fill('0',r[1].length);
  	}
  	if((r = fmt.match(/^#,#*,#0/))) return write_num_int(type,fmt.replace(/^#,#*,/,""),val);
  	if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
  		o = _strrev(write_num_int(type, fmt.replace(/[\\-]/g,""), val));
  		ri = 0;
  		return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
  	}
  	if(fmt.match(phone)) {
  		o = write_num_int(type, "##########", val);
  		return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
  	}
  	var oa = "";
  	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
  		ri = Math.min(r[4].length,7);
  		ff = frac(aval, Math.pow(10,ri)-1, false);
  		o = "" + sign;
  		oa = write_num("n", r[1], ff[1]);
  		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
  		o += oa + r[2] + "/" + r[3];
  		oa = rpad_(ff[2],ri);
  		if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
  		o += oa;
  		return o;
  	}
  	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
  		ri = Math.min(Math.max(r[1].length, r[4].length),7);
  		ff = frac(aval, Math.pow(10,ri)-1, true);
  		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
  	}
  	if((r = fmt.match(/^[#0?]+$/))) {
  		o = "" + val;
  		if(fmt.length <= o.length) return o;
  		return hashq(fmt.substr(0,fmt.length-o.length)) + o;
  	}
  	if((r = fmt.match(/^([#0]+)\.([#0]+)$/))) {
  		o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
  		ri = o.indexOf(".");
  		var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
  		return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
  	}
  	if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
  		return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify(""+val).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(0,r[1].length);
  	}
  	switch(fmt) {
  		case "###,###":
  		case "##,###":
  		case "#,###": var x = commaify(""+aval); return x !== "0" ? sign + x : "";
  		default:
  			if(fmt.match(/\.[0#?]*$/)) return write_num_int(type, fmt.slice(0,fmt.lastIndexOf(".")), val) + hashq(fmt.slice(fmt.lastIndexOf(".")));
  	}
  	throw new Error("unsupported format |" + fmt + "|");
  }
  return function write_num(type, fmt, val) {
  	return (val|0) === val ? write_num_int(type, fmt, val) : write_num_flt(type, fmt, val);
  };})();
  function split_fmt(fmt) {
  	var out = [];
  	var in_str = false/*, cc*/;
  	for(var i = 0, j = 0; i < fmt.length; ++i) switch((/*cc=*/fmt.charCodeAt(i))) {
  		case 34: /* '"' */
  			in_str = !in_str; break;
  		case 95: case 42: case 92: /* '_' '*' '\\' */
  			++i; break;
  		case 59: /* ';' */
  			out[out.length] = fmt.substr(j,i-j);
  			j = i+1;
  	}
  	out[out.length] = fmt.substr(j);
  	if(in_str === true) throw new Error("Format |" + fmt + "| unterminated string ");
  	return out;
  }
  SSF._split = split_fmt;
  var abstime = /\[[HhMmSs]*\]/;
  function fmt_is_date(fmt) {
  	var i = 0, /*cc = 0,*/ c = "", o = "";
  	while(i < fmt.length) {
  		switch((c = fmt.charAt(i))) {
  			case 'G': if(isgeneral(fmt, i)) i+= 6; i++; break;
  			case '"': for(;(/*cc=*/fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) ++i; ++i; break;
  			case '\\': i+=2; break;
  			case '_': i+=2; break;
  			case '@': ++i; break;
  			case 'B': case 'b':
  				if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") return true;
  				/* falls through */
  			case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
  				/* falls through */
  			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g': return true;
  			case 'A': case 'a':
  				if(fmt.substr(i, 3).toUpperCase() === "A/P") return true;
  				if(fmt.substr(i, 5).toUpperCase() === "AM/PM") return true;
  				++i; break;
  			case '[':
  				o = c;
  				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
  				if(o.match(abstime)) return true;
  				break;
  			case '.':
  				/* falls through */
  			case '0': case '#':
  				while(i < fmt.length && ("0#?.,E+-%".indexOf(c=fmt.charAt(++i)) > -1 || (c=='\\' && fmt.charAt(i+1) == "-" && "0#".indexOf(fmt.charAt(i+2))>-1))){/* empty */}
  				break;
  			case '?': while(fmt.charAt(++i) === c){/* empty */} break;
  			case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break;
  			case '(': case ')': ++i; break;
  			case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
  				while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1){/* empty */} break;
  			case ' ': ++i; break;
  			default: ++i; break;
  		}
  	}
  	return false;
  }
  SSF.is_date = fmt_is_date;
  function eval_fmt(fmt, v, opts, flen) {
  	var out = [], o = "", i = 0, c = "", lst='t', dt, j, cc;
  	var hr='H';
  	/* Tokenize */
  	while(i < fmt.length) {
  		switch((c = fmt.charAt(i))) {
  			case 'G': /* General */
  				if(!isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
  				out[out.length] = {t:'G', v:'General'}; i+=7; break;
  			case '"': /* Literal text */
  				for(o="";(cc=fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) o += String.fromCharCode(cc);
  				out[out.length] = {t:'t', v:o}; ++i; break;
  			case '\\': var w = fmt.charAt(++i), t = (w === "(" || w === ")") ? w : 't';
  				out[out.length] = {t:t, v:w}; ++i; break;
  			case '_': out[out.length] = {t:'t', v:" "}; i+=2; break;
  			case '@': /* Text Placeholder */
  				out[out.length] = {t:'T', v:v}; ++i; break;
  			case 'B': case 'b':
  				if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") {
  					if(dt==null) { dt=parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
  					out[out.length] = {t:'X', v:fmt.substr(i,2)}; lst = c; i+=2; break;
  				}
  				/* falls through */
  			case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
  				c = c.toLowerCase();
  				/* falls through */
  			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g':
  				if(v < 0) return "";
  				if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
  				o = c; while(++i < fmt.length && fmt.charAt(i).toLowerCase() === c) o+=c;
  				if(c === 'm' && lst.toLowerCase() === 'h') c = 'M';
  				if(c === 'h') c = hr;
  				out[out.length] = {t:c, v:o}; lst = c; break;
  			case 'A': case 'a':
  				var q={t:c, v:c};
  				if(dt==null) dt=parse_date_code(v, opts);
  				if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? "P" : "A"; q.t = 'T'; hr='h';i+=3;}
  				else if(fmt.substr(i,5).toUpperCase() === "AM/PM") { if(dt!=null) q.v = dt.H >= 12 ? "PM" : "AM"; q.t = 'T'; i+=5; hr='h'; }
  				else { q.t = "t"; ++i; }
  				if(dt==null && q.t === 'T') return "";
  				out[out.length] = q; lst = c; break;
  			case '[':
  				o = c;
  				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
  				if(o.slice(-1) !== ']') throw 'unterminated "[" block: |' + o + '|';
  				if(o.match(abstime)) {
  					if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
  					out[out.length] = {t:'Z', v:o.toLowerCase()};
  					lst = o.charAt(1);
  				} else if(o.indexOf("$") > -1) {
  					o = (o.match(/\$([^-\[\]]*)/)||[])[1]||"$";
  					if(!fmt_is_date(fmt)) out[out.length] = {t:'t',v:o};
  				}
  				break;
  			/* Numbers */
  			case '.':
  				if(dt != null) {
  					o = c; while(++i < fmt.length && (c=fmt.charAt(i)) === "0") o += c;
  					out[out.length] = {t:'s', v:o}; break;
  				}
  				/* falls through */
  			case '0': case '#':
  				o = c; while((++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) || (c=='\\' && fmt.charAt(i+1) == "-" && i < fmt.length - 2 && "0#".indexOf(fmt.charAt(i+2))>-1)) o += c;
  				out[out.length] = {t:'n', v:o}; break;
  			case '?':
  				o = c; while(fmt.charAt(++i) === c) o+=c;
  				out[out.length] = {t:c, v:o}; lst = c; break;
  			case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break; // **
  			case '(': case ')': out[out.length] = {t:(flen===1?'t':c), v:c}; ++i; break;
  			case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
  				o = c; while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1) o+=fmt.charAt(i);
  				out[out.length] = {t:'D', v:o}; break;
  			case ' ': out[out.length] = {t:c, v:c}; ++i; break;
  			default:
  				if(",$-+/():!^&'~{}<>=€acfijklopqrtuvwxzP".indexOf(c) === -1) throw new Error('unrecognized character ' + c + ' in ' + fmt);
  				out[out.length] = {t:'t', v:c}; ++i; break;
  		}
  	}
  	var bt = 0, ss0 = 0, ssm;
  	for(i=out.length-1, lst='t'; i >= 0; --i) {
  		switch(out[i].t) {
  			case 'h': case 'H': out[i].t = hr; lst='h'; if(bt < 1) bt = 1; break;
  			case 's':
  				if((ssm=out[i].v.match(/\.0+$/))) ss0=Math.max(ss0,ssm[0].length-1);
  				if(bt < 3) bt = 3;
  			/* falls through */
  			case 'd': case 'y': case 'M': case 'e': lst=out[i].t; break;
  			case 'm': if(lst === 's') { out[i].t = 'M'; if(bt < 2) bt = 2; } break;
  			case 'X': /*if(out[i].v === "B2");*/
  				break;
  			case 'Z':
  				if(bt < 1 && out[i].v.match(/[Hh]/)) bt = 1;
  				if(bt < 2 && out[i].v.match(/[Mm]/)) bt = 2;
  				if(bt < 3 && out[i].v.match(/[Ss]/)) bt = 3;
  		}
  	}
  	switch(bt) {
  		case 0: break;
  		case 1:
  if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
  			if(dt.S >=  60) { dt.S = 0; ++dt.M; }
  			if(dt.M >=  60) { dt.M = 0; ++dt.H; }
  			break;
  		case 2:
  if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
  			if(dt.S >=  60) { dt.S = 0; ++dt.M; }
  			break;
  	}
  	/* replace fields */
  	var nstr = "", jj;
  	for(i=0; i < out.length; ++i) {
  		switch(out[i].t) {
  			case 't': case 'T': case ' ': case 'D': break;
  			case 'X': out[i].v = ""; out[i].t = ";"; break;
  			case 'd': case 'm': case 'y': case 'h': case 'H': case 'M': case 's': case 'e': case 'b': case 'Z':
  out[i].v = write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
  				out[i].t = 't'; break;
  			case 'n': case '(': case '?':
  				jj = i+1;
  				while(out[jj] != null && (
  					(c=out[jj].t) === "?" || c === "D" ||
  					((c === " " || c === "t") && out[jj+1] != null && (out[jj+1].t === '?' || out[jj+1].t === "t" && out[jj+1].v === '/')) ||
  					(out[i].t === '(' && (c === ' ' || c === 'n' || c === ')')) ||
  					(c === 't' && (out[jj].v === '/' || out[jj].v === ' ' && out[jj+1] != null && out[jj+1].t == '?'))
  				)) {
  					out[i].v += out[jj].v;
  					out[jj] = {v:"", t:";"}; ++jj;
  				}
  				nstr += out[i].v;
  				i = jj-1; break;
  			case 'G': out[i].t = 't'; out[i].v = general_fmt(v,opts); break;
  		}
  	}
  	var vv = "", myv, ostr;
  	if(nstr.length > 0) {
  		if(nstr.charCodeAt(0) == 40) /* '(' */ {
  			myv = (v<0&&nstr.charCodeAt(0) === 45 ? -v : v);
  			ostr = write_num('(', nstr, myv);
  		} else {
  			myv = (v<0 && flen > 1 ? -v : v);
  			ostr = write_num('n', nstr, myv);
  			if(myv < 0 && out[0] && out[0].t == 't') {
  				ostr = ostr.substr(1);
  				out[0].v = "-" + out[0].v;
  			}
  		}
  		jj=ostr.length-1;
  		var decpt = out.length;
  		for(i=0; i < out.length; ++i) if(out[i] != null && out[i].t != 't' && out[i].v.indexOf(".") > -1) { decpt = i; break; }
  		var lasti=out.length;
  		if(decpt === out.length && ostr.indexOf("E") === -1) {
  			for(i=out.length-1; i>= 0;--i) {
  				if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
  				if(jj>=out[i].v.length-1) { jj -= out[i].v.length; out[i].v = ostr.substr(jj+1, out[i].v.length); }
  				else if(jj < 0) out[i].v = "";
  				else { out[i].v = ostr.substr(0, jj+1); jj = -1; }
  				out[i].t = 't';
  				lasti = i;
  			}
  			if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
  		}
  		else if(decpt !== out.length && ostr.indexOf("E") === -1) {
  			jj = ostr.indexOf(".")-1;
  			for(i=decpt; i>= 0; --i) {
  				if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
  				j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")-1:out[i].v.length-1;
  				vv = out[i].v.substr(j+1);
  				for(; j>=0; --j) {
  					if(jj>=0 && (out[i].v.charAt(j) === "0" || out[i].v.charAt(j) === "#")) vv = ostr.charAt(jj--) + vv;
  				}
  				out[i].v = vv;
  				out[i].t = 't';
  				lasti = i;
  			}
  			if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
  			jj = ostr.indexOf(".")+1;
  			for(i=decpt; i<out.length; ++i) {
  				if(out[i] == null || ('n?('.indexOf(out[i].t) === -1 && i !== decpt)) continue;
  				j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")+1:0;
  				vv = out[i].v.substr(0,j);
  				for(; j<out[i].v.length; ++j) {
  					if(jj<ostr.length) vv += ostr.charAt(jj++);
  				}
  				out[i].v = vv;
  				out[i].t = 't';
  				lasti = i;
  			}
  		}
  	}
  	for(i=0; i<out.length; ++i) if(out[i] != null && 'n(?'.indexOf(out[i].t)>-1) {
  		myv = (flen >1 && v < 0 && i>0 && out[i-1].v === "-" ? -v:v);
  		out[i].v = write_num(out[i].t, out[i].v, myv);
  		out[i].t = 't';
  	}
  	var retval = "";
  	for(i=0; i !== out.length; ++i) if(out[i] != null) retval += out[i].v;
  	return retval;
  }
  SSF._eval = eval_fmt;
  var cfregex = /\[[=<>]/;
  var cfregex2 = /\[(=|>[=]?|<[>=]?)(-?\d+(?:\.\d*)?)\]/;
  function chkcond(v, rr) {
  	if(rr == null) return false;
  	var thresh = parseFloat(rr[2]);
  	switch(rr[1]) {
  		case "=":  if(v == thresh) return true; break;
  		case ">":  if(v >  thresh) return true; break;
  		case "<":  if(v <  thresh) return true; break;
  		case "<>": if(v != thresh) return true; break;
  		case ">=": if(v >= thresh) return true; break;
  		case "<=": if(v <= thresh) return true; break;
  	}
  	return false;
  }
  function choose_fmt(f, v) {
  	var fmt = split_fmt(f);
  	var l = fmt.length, lat = fmt[l-1].indexOf("@");
  	if(l<4 && lat>-1) --l;
  	if(fmt.length > 4) throw new Error("cannot find right format for |" + fmt.join("|") + "|");
  	if(typeof v !== "number") return [4, fmt.length === 4 || lat>-1?fmt[fmt.length-1]:"@"];
  	switch(fmt.length) {
  		case 1: fmt = lat>-1 ? ["General", "General", "General", fmt[0]] : [fmt[0], fmt[0], fmt[0], "@"]; break;
  		case 2: fmt = lat>-1 ? [fmt[0], fmt[0], fmt[0], fmt[1]] : [fmt[0], fmt[1], fmt[0], "@"]; break;
  		case 3: fmt = lat>-1 ? [fmt[0], fmt[1], fmt[0], fmt[2]] : [fmt[0], fmt[1], fmt[2], "@"]; break;
  		case 4: break;
  	}
  	var ff = v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
  	if(fmt[0].indexOf("[") === -1 && fmt[1].indexOf("[") === -1) return [l, ff];
  	if(fmt[0].match(cfregex) != null || fmt[1].match(cfregex) != null) {
  		var m1 = fmt[0].match(cfregex2);
  		var m2 = fmt[1].match(cfregex2);
  		return chkcond(v, m1) ? [l, fmt[0]] : chkcond(v, m2) ? [l, fmt[1]] : [l, fmt[m1 != null && m2 != null ? 2 : 1]];
  	}
  	return [l, ff];
  }
  function format(fmt,v,o) {
  	if(o == null) o = {};
  	var sfmt = "";
  	switch(typeof fmt) {
  		case "string":
  			if(fmt == "m/d/yy" && o.dateNF) sfmt = o.dateNF;
  			else sfmt = fmt;
  			break;
  		case "number":
  			if(fmt == 14 && o.dateNF) sfmt = o.dateNF;
  			else sfmt = (o.table != null ? (o.table) : table_fmt)[fmt];
  			break;
  	}
  	if(isgeneral(sfmt,0)) return general_fmt(v, o);
  	if(v instanceof Date) v = datenum_local(v, o.date1904);
  	var f = choose_fmt(sfmt, v);
  	if(isgeneral(f[1])) return general_fmt(v, o);
  	if(v === true) v = "TRUE"; else if(v === false) v = "FALSE";
  	else if(v === "" || v == null) return "";
  	return eval_fmt(f[1], v, o, f[0]);
  }
  function load_entry(fmt, idx) {
  	if(typeof idx != 'number') {
  		idx = +idx || -1;
  for(var i = 0; i < 0x0188; ++i) {
  if(table_fmt[i] == undefined) { if(idx < 0) idx = i; continue; }
  			if(table_fmt[i] == fmt) { idx = i; break; }
  		}
  if(idx < 0) idx = 0x187;
  	}
  table_fmt[idx] = fmt;
  	return idx;
  }
  SSF.load = load_entry;
  SSF._table = table_fmt;
  SSF.get_table = function get_table() { return table_fmt; };
  SSF.load_table = function load_table(tbl) {
  	for(var i=0; i!=0x0188; ++i)
  		if(tbl[i] !== undefined) load_entry(tbl[i], i);
  };
  SSF.init_table = init_table;
  SSF.format = format;
  };
  make_ssf(SSF);
  /* map from xlml named formats to SSF TODO: localize */
  var XLMLFormatMap/*{[string]:string}*/ = ({
  	"General Number": "General",
  	"General Date": SSF._table[22],
  	"Long Date": "dddd, mmmm dd, yyyy",
  	"Medium Date": SSF._table[15],
  	"Short Date": SSF._table[14],
  	"Long Time": SSF._table[19],
  	"Medium Time": SSF._table[18],
  	"Short Time": SSF._table[20],
  	"Currency": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
  	"Fixed": SSF._table[2],
  	"Standard": SSF._table[4],
  	"Percent": SSF._table[10],
  	"Scientific": SSF._table[11],
  	"Yes/No": '"Yes";"Yes";"No";@',
  	"True/False": '"True";"True";"False";@',
  	"On/Off": '"Yes";"Yes";"No";@'
  });
  
  var SSFImplicit/*{[number]:string}*/ = ({
  	"5": '"$"#,##0_);\\("$"#,##0\\)',
  	"6": '"$"#,##0_);[Red]\\("$"#,##0\\)',
  	"7": '"$"#,##0.00_);\\("$"#,##0.00\\)',
  	"8": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
  	"23": 'General', "24": 'General', "25": 'General', "26": 'General',
  	"27": 'm/d/yy', "28": 'm/d/yy', "29": 'm/d/yy', "30": 'm/d/yy', "31": 'm/d/yy',
  	"32": 'h:mm:ss', "33": 'h:mm:ss', "34": 'h:mm:ss', "35": 'h:mm:ss',
  	"36": 'm/d/yy',
  	"41": '_(* #,##0_);_(* \(#,##0\);_(* "-"_);_(@_)',
  	"42": '_("$"* #,##0_);_("$"* \(#,##0\);_("$"* "-"_);_(@_)',
  	"43": '_(* #,##0.00_);_(* \(#,##0.00\);_(* "-"??_);_(@_)',
  	"44": '_("$"* #,##0.00_);_("$"* \(#,##0.00\);_("$"* "-"??_);_(@_)',
  	"50": 'm/d/yy', "51": 'm/d/yy', "52": 'm/d/yy', "53": 'm/d/yy', "54": 'm/d/yy',
  	"55": 'm/d/yy', "56": 'm/d/yy', "57": 'm/d/yy', "58": 'm/d/yy',
  	"59": '0',
  	"60": '0.00',
  	"61": '#,##0',
  	"62": '#,##0.00',
  	"63": '"$"#,##0_);\\("$"#,##0\\)',
  	"64": '"$"#,##0_);[Red]\\("$"#,##0\\)',
  	"65": '"$"#,##0.00_);\\("$"#,##0.00\\)',
  	"66": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
  	"67": '0%',
  	"68": '0.00%',
  	"69": '# ?/?',
  	"70": '# ??/??',
  	"71": 'm/d/yy',
  	"72": 'm/d/yy',
  	"73": 'd-mmm-yy',
  	"74": 'd-mmm',
  	"75": 'mmm-yy',
  	"76": 'h:mm',
  	"77": 'h:mm:ss',
  	"78": 'm/d/yy h:mm',
  	"79": 'mm:ss',
  	"80": '[h]:mm:ss',
  	"81": 'mmss.0'
  });
  
  /* dateNF parse TODO: move to SSF */
  var dateNFregex = /[dD]+|[mM]+|[yYeE]+|[Hh]+|[Ss]+/g;
  function dateNF_regex(dateNF) {
  	var fmt = typeof dateNF == "number" ? SSF._table[dateNF] : dateNF;
  	fmt = fmt.replace(dateNFregex, "(\\d+)");
  	return new RegExp("^" + fmt + "$");
  }
  function dateNF_fix(str, dateNF, match) {
  	var Y = -1, m = -1, d = -1, H = -1, M = -1, S = -1;
  	(dateNF.match(dateNFregex)||[]).forEach(function(n, i) {
  		var v = parseInt(match[i+1], 10);
  		switch(n.toLowerCase().charAt(0)) {
  			case 'y': Y = v; break; case 'd': d = v; break;
  			case 'h': H = v; break; case 's': S = v; break;
  			case 'm': if(H >= 0) M = v; else m = v; break;
  		}
  	});
  	if(S >= 0 && M == -1 && m >= 0) { M = m; m = -1; }
  	var datestr = (("" + (Y>=0?Y: new Date().getFullYear())).slice(-4) + "-" + ("00" + (m>=1?m:1)).slice(-2) + "-" + ("00" + (d>=1?d:1)).slice(-2));
  	if(datestr.length == 7) datestr = "0" + datestr;
  	if(datestr.length == 8) datestr = "20" + datestr;
  	var timestr = (("00" + (H>=0?H:0)).slice(-2) + ":" + ("00" + (M>=0?M:0)).slice(-2) + ":" + ("00" + (S>=0?S:0)).slice(-2));
  	if(H == -1 && M == -1 && S == -1) return datestr;
  	if(Y == -1 && m == -1 && d == -1) return timestr;
  	return datestr + "T" + timestr;
  }
  
  var DO_NOT_EXPORT_CFB = true;
  /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
  /* vim: set ts=2: */
  /*jshint eqnull:true */
  /*exported CFB */
  /*global module, require:false, process:false, Buffer:false, Uint8Array:false, Uint16Array:false */
  
  /* crc32.js (C) 2014-present SheetJS -- http://sheetjs.com */
  /* vim: set ts=2: */
  /*exported CRC32 */
  var CRC32;
  (function (factory) {
  	/*jshint ignore:start */
  	/*eslint-disable */
  	factory(CRC32 = {});
  	/*eslint-enable */
  	/*jshint ignore:end */
  }(function(CRC32) {
  CRC32.version = '1.2.0';
  /* see perf/crc32table.js */
  /*global Int32Array */
  function signed_crc_table() {
  	var c = 0, table = new Array(256);
  
  	for(var n =0; n != 256; ++n){
  		c = n;
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
  		table[n] = c;
  	}
  
  	return typeof Int32Array !== 'undefined' ? new Int32Array(table) : table;
  }
  
  var T = signed_crc_table();
  function crc32_bstr(bstr, seed) {
  	var C = seed ^ -1, L = bstr.length - 1;
  	for(var i = 0; i < L;) {
  		C = (C>>>8) ^ T[(C^bstr.charCodeAt(i++))&0xFF];
  		C = (C>>>8) ^ T[(C^bstr.charCodeAt(i++))&0xFF];
  	}
  	if(i === L) C = (C>>>8) ^ T[(C ^ bstr.charCodeAt(i))&0xFF];
  	return C ^ -1;
  }
  
  function crc32_buf(buf, seed) {
  	if(buf.length > 10000) return crc32_buf_8(buf, seed);
  	var C = seed ^ -1, L = buf.length - 3;
  	for(var i = 0; i < L;) {
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  	}
  	while(i < L+3) C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  	return C ^ -1;
  }
  
  function crc32_buf_8(buf, seed) {
  	var C = seed ^ -1, L = buf.length - 7;
  	for(var i = 0; i < L;) {
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  		C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  	}
  	while(i < L+7) C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
  	return C ^ -1;
  }
  
  function crc32_str(str, seed) {
  	var C = seed ^ -1;
  	for(var i = 0, L=str.length, c, d; i < L;) {
  		c = str.charCodeAt(i++);
  		if(c < 0x80) {
  			C = (C>>>8) ^ T[(C ^ c)&0xFF];
  		} else if(c < 0x800) {
  			C = (C>>>8) ^ T[(C ^ (192|((c>>6)&31)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|(c&63)))&0xFF];
  		} else if(c >= 0xD800 && c < 0xE000) {
  			c = (c&1023)+64; d = str.charCodeAt(i++)&1023;
  			C = (C>>>8) ^ T[(C ^ (240|((c>>8)&7)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|((c>>2)&63)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|((d>>6)&15)|((c&3)<<4)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|(d&63)))&0xFF];
  		} else {
  			C = (C>>>8) ^ T[(C ^ (224|((c>>12)&15)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|((c>>6)&63)))&0xFF];
  			C = (C>>>8) ^ T[(C ^ (128|(c&63)))&0xFF];
  		}
  	}
  	return C ^ -1;
  }
  CRC32.table = T;
  CRC32.bstr = crc32_bstr;
  CRC32.buf = crc32_buf;
  CRC32.str = crc32_str;
  }));
  /* [MS-CFB] v20171201 */
  var CFB = (function _CFB(){
  var exports = {};
  exports.version = '1.1.0';
  /* [MS-CFB] 2.6.4 */
  function namecmp(l, r) {
  	var L = l.split("/"), R = r.split("/");
  	for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) {
  		if((c = L[i].length - R[i].length)) return c;
  		if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1;
  	}
  	return L.length - R.length;
  }
  function dirname(p) {
  	if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1));
  	var c = p.lastIndexOf("/");
  	return (c === -1) ? p : p.slice(0, c+1);
  }
  
  function filename(p) {
  	if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1));
  	var c = p.lastIndexOf("/");
  	return (c === -1) ? p : p.slice(c+1);
  }
  /* -------------------------------------------------------------------------- */
  /* DOS Date format:
     high|YYYYYYYm.mmmddddd.HHHHHMMM.MMMSSSSS|low
     add 1980 to stored year
     stored second should be doubled
  */
  
  /* write JS date to buf as a DOS date */
  function write_dos_date(buf, date) {
  	if(typeof date === "string") date = new Date(date);
  	var hms = date.getHours();
  	hms = hms << 6 | date.getMinutes();
  	hms = hms << 5 | (date.getSeconds()>>>1);
  	buf.write_shift(2, hms);
  	var ymd = (date.getFullYear() - 1980);
  	ymd = ymd << 4 | (date.getMonth()+1);
  	ymd = ymd << 5 | date.getDate();
  	buf.write_shift(2, ymd);
  }
  
  /* read four bytes from buf and interpret as a DOS date */
  function parse_dos_date(buf) {
  	var hms = buf.read_shift(2) & 0xFFFF;
  	var ymd = buf.read_shift(2) & 0xFFFF;
  	var val = new Date();
  	var d = ymd & 0x1F; ymd >>>= 5;
  	var m = ymd & 0x0F; ymd >>>= 4;
  	val.setMilliseconds(0);
  	val.setFullYear(ymd + 1980);
  	val.setMonth(m-1);
  	val.setDate(d);
  	var S = hms & 0x1F; hms >>>= 5;
  	var M = hms & 0x3F; hms >>>= 6;
  	val.setHours(hms);
  	val.setMinutes(M);
  	val.setSeconds(S<<1);
  	return val;
  }
  function parse_extra_field(blob) {
  	prep_blob(blob, 0);
  	var o = {};
  	var flags = 0;
  	while(blob.l <= blob.length - 4) {
  		var type = blob.read_shift(2);
  		var sz = blob.read_shift(2), tgt = blob.l + sz;
  		var p = {};
  		switch(type) {
  			/* UNIX-style Timestamps */
  			case 0x5455: {
  				flags = blob.read_shift(1);
  				if(flags & 1) p.mtime = blob.read_shift(4);
  				/* for some reason, CD flag corresponds to LFH */
  				if(sz > 5) {
  					if(flags & 2) p.atime = blob.read_shift(4);
  					if(flags & 4) p.ctime = blob.read_shift(4);
  				}
  				if(p.mtime) p.mt = new Date(p.mtime*1000);
  			}
  			break;
  		}
  		blob.l = tgt;
  		o[type] = p;
  	}
  	return o;
  }
  var fs;
  function get_fs() { return fs || (fs = require('fs')); }
  function parse(file, options) {
  if(file[0] == 0x50 && file[1] == 0x4b) return parse_zip(file, options);
  if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");
  var mver = 3;
  var ssz = 512;
  var nmfs = 0; // number of mini FAT sectors
  var difat_sec_cnt = 0;
  var dir_start = 0;
  var minifat_start = 0;
  var difat_start = 0;
  
  var fat_addrs = []; // locations of FAT sectors
  
  /* [MS-CFB] 2.2 Compound File Header */
  var blob = file.slice(0,512);
  prep_blob(blob, 0);
  
  /* major version */
  var mv = check_get_mver(blob);
  mver = mv[0];
  switch(mver) {
  	case 3: ssz = 512; break; case 4: ssz = 4096; break;
  	case 0: if(mv[1] == 0) return parse_zip(file, options);
  	/* falls through */
  	default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
  }
  
  /* reprocess header */
  if(ssz !== 512) { blob = file.slice(0,ssz); prep_blob(blob, 28 /* blob.l */); }
  /* Save header for final object */
  var header = file.slice(0,ssz);
  
  check_shifts(blob, mver);
  
  // Number of Directory Sectors
  var dir_cnt = blob.read_shift(4, 'i');
  if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);
  
  // Number of FAT Sectors
  blob.l += 4;
  
  // First Directory Sector Location
  dir_start = blob.read_shift(4, 'i');
  
  // Transaction Signature
  blob.l += 4;
  
  // Mini Stream Cutoff Size
  blob.chk('00100000', 'Mini Stream Cutoff Size: ');
  
  // First Mini FAT Sector Location
  minifat_start = blob.read_shift(4, 'i');
  
  // Number of Mini FAT Sectors
  nmfs = blob.read_shift(4, 'i');
  
  // First DIFAT sector location
  difat_start = blob.read_shift(4, 'i');
  
  // Number of DIFAT Sectors
  difat_sec_cnt = blob.read_shift(4, 'i');
  
  // Grab FAT Sector Locations
  for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
  	q = blob.read_shift(4, 'i');
  	if(q<0) break;
  	fat_addrs[j] = q;
  }
  
  /** Break the file up into sectors */
  var sectors = sectorify(file, ssz);
  
  sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);
  
  /** Chains */
  var sector_list = make_sector_list(sectors, dir_start, fat_addrs, ssz);
  
  sector_list[dir_start].name = "!Directory";
  if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";
  sector_list[fat_addrs[0]].name = "!FAT";
  sector_list.fat_addrs = fat_addrs;
  sector_list.ssz = ssz;
  
  /* [MS-CFB] 2.6.1 Compound File Directory Entry */
  var files = {}, Paths = [], FileIndex = [], FullPaths = [];
  read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);
  
  build_full_paths(FileIndex, FullPaths, Paths);
  Paths.shift();
  
  var o = {
  	FileIndex: FileIndex,
  	FullPaths: FullPaths
  };
  
  // $FlowIgnore
  if(options && options.raw) o.raw = {header: header, sectors: sectors};
  return o;
  } // parse
  
  /* [MS-CFB] 2.2 Compound File Header -- read up to major version */
  function check_get_mver(blob) {
  	if(blob[blob.l] == 0x50 && blob[blob.l + 1] == 0x4b) return [0, 0];
  	// header signature 8
  	blob.chk(HEADER_SIGNATURE, 'Header Signature: ');
  
  	// clsid 16
  	blob.chk(HEADER_CLSID, 'CLSID: ');
  
  	// minor version 2
  	var mver = blob.read_shift(2, 'u');
  
  	return [blob.read_shift(2,'u'), mver];
  }
  function check_shifts(blob, mver) {
  	var shift = 0x09;
  
  	// Byte Order
  	//blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff
  	blob.l += 2;
  
  	// Sector Shift
  	switch((shift = blob.read_shift(2))) {
  		case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break;
  		case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break;
  		default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift);
  	}
  
  	// Mini Sector Shift
  	blob.chk('0600', 'Mini Sector Shift: ');
  
  	// Reserved
  	blob.chk('000000000000', 'Reserved: ');
  }
  
  /** Break the file up into sectors */
  function sectorify(file, ssz) {
  	var nsectors = Math.ceil(file.length/ssz)-1;
  	var sectors = [];
  	for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz);
  	sectors[nsectors-1] = file.slice(nsectors*ssz);
  	return sectors;
  }
  
  /* [MS-CFB] 2.6.4 Red-Black Tree */
  function build_full_paths(FI, FP, Paths) {
  	var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
  	var dad = [], q = [];
  
  	for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
  
  	for(; j < q.length; ++j) {
  		i = q[j];
  		L = FI[i].L; R = FI[i].R; C = FI[i].C;
  		if(dad[i] === i) {
  			if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
  			if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
  		}
  		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
  		if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
  		if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
  	}
  	for(i=1; i < pl; ++i) if(dad[i] === i) {
  		if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
  		else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
  	}
  
  	for(i=1; i < pl; ++i) {
  		if(FI[i].type === 0 /* unknown */) continue;
  		j = dad[i];
  		if(j === 0) FP[i] = FP[0] + "/" + FP[i];
  		else while(j !== 0 && j !== dad[j]) {
  			FP[i] = FP[j] + "/" + FP[i];
  			j = dad[j];
  		}
  		dad[i] = 0;
  	}
  
  	FP[0] += "/";
  	for(i=1; i < pl; ++i) {
  		if(FI[i].type !== 2 /* stream */) FP[i] += "/";
  	}
  }
  
  function get_mfat_entry(entry, payload, mini) {
  	var start = entry.start, size = entry.size;
  	//return (payload.slice(start*MSSZ, start*MSSZ + size));
  	var o = [];
  	var idx = start;
  	while(mini && size > 0 && idx >= 0) {
  		o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ));
  		size -= MSSZ;
  		idx = __readInt32LE(mini, idx * 4);
  	}
  	if(o.length === 0) return (new_buf(0));
  	return (bconcat(o).slice(0, entry.size));
  }
  
  /** Chase down the rest of the DIFAT chain to build a comprehensive list
      DIFAT chains by storing the next sector number as the last 32 bits */
  function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
  	var q = ENDOFCHAIN;
  	if(idx === ENDOFCHAIN) {
  		if(cnt !== 0) throw new Error("DIFAT chain shorter than expected");
  	} else if(idx !== -1 /*FREESECT*/) {
  		var sector = sectors[idx], m = (ssz>>>2)-1;
  		if(!sector) return;
  		for(var i = 0; i < m; ++i) {
  			if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break;
  			fat_addrs.push(q);
  		}
  		sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs);
  	}
  }
  
  /** Follow the linked list of sectors for a given starting point */
  function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
  	var buf = [], buf_chain = [];
  	if(!chkd) chkd = [];
  	var modulus = ssz - 1, j = 0, jj = 0;
  	for(j=start; j>=0;) {
  		chkd[j] = true;
  		buf[buf.length] = j;
  		buf_chain.push(sectors[j]);
  		var addr = fat_addrs[Math.floor(j*4/ssz)];
  		jj = ((j*4) & modulus);
  		if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
  		if(!sectors[addr]) break;
  		j = __readInt32LE(sectors[addr], jj);
  	}
  	return {nodes: buf, data:__toBuffer([buf_chain])};
  }
  
  /** Chase down the sector linked lists */
  function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
  	var sl = sectors.length, sector_list = ([]);
  	var chkd = [], buf = [], buf_chain = [];
  	var modulus = ssz - 1, i=0, j=0, k=0, jj=0;
  	for(i=0; i < sl; ++i) {
  		buf = ([]);
  		k = (i + dir_start); if(k >= sl) k-=sl;
  		if(chkd[k]) continue;
  		buf_chain = [];
  		for(j=k; j>=0;) {
  			chkd[j] = true;
  			buf[buf.length] = j;
  			buf_chain.push(sectors[j]);
  			var addr = fat_addrs[Math.floor(j*4/ssz)];
  			jj = ((j*4) & modulus);
  			if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
  			if(!sectors[addr]) break;
  			j = __readInt32LE(sectors[addr], jj);
  		}
  		sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])});
  	}
  	return sector_list;
  }
  
  /* [MS-CFB] 2.6.1 Compound File Directory Entry */
  function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, mini) {
  	var minifat_store = 0, pl = (Paths.length?2:0);
  	var sector = sector_list[dir_start].data;
  	var i = 0, namelen = 0, name;
  	for(; i < sector.length; i+= 128) {
  		var blob = sector.slice(i, i+128);
  		prep_blob(blob, 64);
  		namelen = blob.read_shift(2);
  		name = __utf16le(blob,0,namelen-pl);
  		Paths.push(name);
  		var o = ({
  			name:  name,
  			type:  blob.read_shift(1),
  			color: blob.read_shift(1),
  			L:     blob.read_shift(4, 'i'),
  			R:     blob.read_shift(4, 'i'),
  			C:     blob.read_shift(4, 'i'),
  			clsid: blob.read_shift(16),
  			state: blob.read_shift(4, 'i'),
  			start: 0,
  			size: 0
  		});
  		var ctime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
  		if(ctime !== 0) o.ct = read_date(blob, blob.l-8);
  		var mtime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
  		if(mtime !== 0) o.mt = read_date(blob, blob.l-8);
  		o.start = blob.read_shift(4, 'i');
  		o.size = blob.read_shift(4, 'i');
  		if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; }
  		if(o.type === 5) { /* root */
  			minifat_store = o.start;
  			if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
  			/*minifat_size = o.size;*/
  		} else if(o.size >= 4096 /* MSCSZ */) {
  			o.storage = 'fat';
  			if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz);
  			sector_list[o.start].name = o.name;
  			o.content = (sector_list[o.start].data.slice(0,o.size));
  		} else {
  			o.storage = 'minifat';
  			if(o.size < 0) o.size = 0;
  			else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
  				o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data);
  			}
  		}
  		if(o.content) prep_blob(o.content, 0);
  		files[name] = o;
  		FileIndex.push(o);
  	}
  }
  
  function read_date(blob, offset) {
  	return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);
  }
  
  function read_file(filename, options) {
  	get_fs();
  	return parse(fs.readFileSync(filename), options);
  }
  
  function read(blob, options) {
  	switch(options && options.type || "base64") {
  		case "file": return read_file(blob, options);
  		case "base64": return parse(s2a(Base64.decode(blob)), options);
  		case "binary": return parse(s2a(blob), options);
  	}
  	return parse(blob, options);
  }
  
  function init_cfb(cfb, opts) {
  	var o = opts || {}, root = o.root || "Root Entry";
  	if(!cfb.FullPaths) cfb.FullPaths = [];
  	if(!cfb.FileIndex) cfb.FileIndex = [];
  	if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure");
  	if(cfb.FullPaths.length === 0) {
  		cfb.FullPaths[0] = root + "/";
  		cfb.FileIndex[0] = ({ name: root, type: 5 });
  	}
  	if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
  	seed_cfb(cfb);
  }
  function seed_cfb(cfb) {
  	var nm = "\u0001Sh33tJ5";
  	if(CFB.find(cfb, "/" + nm)) return;
  	var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54;
  	cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }));
  	cfb.FullPaths.push(cfb.FullPaths[0] + nm);
  	rebuild_cfb(cfb);
  }
  function rebuild_cfb(cfb, f) {
  	init_cfb(cfb);
  	var gc = false, s = false;
  	for(var i = cfb.FullPaths.length - 1; i >= 0; --i) {
  		var _file = cfb.FileIndex[i];
  		switch(_file.type) {
  			case 0:
  				if(s) gc = true;
  				else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); }
  				break;
  			case 1: case 2: case 5:
  				s = true;
  				if(isNaN(_file.R * _file.L * _file.C)) gc = true;
  				if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true;
  				break;
  			default: gc = true; break;
  		}
  	}
  	if(!gc && !f) return;
  
  	var now = new Date(1987, 1, 19), j = 0;
  	var data = [];
  	for(i = 0; i < cfb.FullPaths.length; ++i) {
  		if(cfb.FileIndex[i].type === 0) continue;
  		data.push([cfb.FullPaths[i], cfb.FileIndex[i]]);
  	}
  	for(i = 0; i < data.length; ++i) {
  		var dad = dirname(data[i][0]);
  		s = false;
  		for(j = 0; j < data.length; ++j) if(data[j][0] === dad) s = true;
  		if(!s) data.push([dad, ({
  			name: filename(dad).replace("/",""),
  			type: 1,
  			clsid: HEADER_CLSID,
  			ct: now, mt: now,
  			content: null
  		})]);
  	}
  
  	data.sort(function(x,y) { return namecmp(x[0], y[0]); });
  	cfb.FullPaths = []; cfb.FileIndex = [];
  	for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; }
  	for(i = 0; i < data.length; ++i) {
  		var elt = cfb.FileIndex[i];
  		var nm = cfb.FullPaths[i];
  
  		elt.name =  filename(nm).replace("/","");
  		elt.L = elt.R = elt.C = -(elt.color = 1);
  		elt.size = elt.content ? elt.content.length : 0;
  		elt.start = 0;
  		elt.clsid = (elt.clsid || HEADER_CLSID);
  		if(i === 0) {
  			elt.C = data.length > 1 ? 1 : -1;
  			elt.size = 0;
  			elt.type = 5;
  		} else if(nm.slice(-1) == "/") {
  			for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break;
  			elt.C = j >= data.length ? -1 : j;
  			for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break;
  			elt.R = j >= data.length ? -1 : j;
  			elt.type = 1;
  		} else {
  			if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1;
  			elt.type = 2;
  		}
  	}
  
  }
  
  function _write(cfb, options) {
  	var _opts = options || {};
  	rebuild_cfb(cfb);
  	if(_opts.fileType == 'zip') return write_zip(cfb, _opts);
  	var L = (function(cfb){
  		var mini_size = 0, fat_size = 0;
  		for(var i = 0; i < cfb.FileIndex.length; ++i) {
  			var file = cfb.FileIndex[i];
  			if(!file.content) continue;
  var flen = file.content.length;
  			if(flen > 0){
  				if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
  				else fat_size += (flen + 0x01FF) >> 9;
  			}
  		}
  		var dir_cnt = (cfb.FullPaths.length +3) >> 2;
  		var mini_cnt = (mini_size + 7) >> 3;
  		var mfat_cnt = (mini_size + 0x7F) >> 7;
  		var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt;
  		var fat_cnt = (fat_base + 0x7F) >> 7;
  		var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
  		while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
  		var L =  [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0];
  		cfb.FileIndex[0].size = mini_size << 6;
  		L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3);
  		return L;
  	})(cfb);
  	var o = new_buf(L[7] << 9);
  	var i = 0, T = 0;
  	{
  		for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]);
  		for(i = 0; i < 8; ++i) o.write_shift(2, 0);
  		o.write_shift(2, 0x003E);
  		o.write_shift(2, 0x0003);
  		o.write_shift(2, 0xFFFE);
  		o.write_shift(2, 0x0009);
  		o.write_shift(2, 0x0006);
  		for(i = 0; i < 3; ++i) o.write_shift(2, 0);
  		o.write_shift(4, 0);
  		o.write_shift(4, L[2]);
  		o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1);
  		o.write_shift(4, 0);
  		o.write_shift(4, 1<<12);
  		o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN);
  		o.write_shift(4, L[3]);
  		o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN);
  		o.write_shift(4, L[1]);
  		for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
  	}
  	if(L[1]) {
  		for(T = 0; T < L[1]; ++T) {
  			for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
  			o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
  		}
  	}
  	var chainit = function(w) {
  		for(T += w; i<T-1; ++i) o.write_shift(-4, i+1);
  		if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); }
  	};
  	T = i = 0;
  	for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT);
  	for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT);
  	chainit(L[3]);
  	chainit(L[4]);
  	var j = 0, flen = 0;
  	var file = cfb.FileIndex[0];
  	for(; j < cfb.FileIndex.length; ++j) {
  		file = cfb.FileIndex[j];
  		if(!file.content) continue;
  flen = file.content.length;
  		if(flen < 0x1000) continue;
  		file.start = T;
  		chainit((flen + 0x01FF) >> 9);
  	}
  	chainit((L[6] + 7) >> 3);
  	while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
  	T = i = 0;
  	for(j = 0; j < cfb.FileIndex.length; ++j) {
  		file = cfb.FileIndex[j];
  		if(!file.content) continue;
  flen = file.content.length;
  		if(!flen || flen >= 0x1000) continue;
  		file.start = T;
  		chainit((flen + 0x3F) >> 6);
  	}
  	while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
  	for(i = 0; i < L[4]<<2; ++i) {
  		var nm = cfb.FullPaths[i];
  		if(!nm || nm.length === 0) {
  			for(j = 0; j < 17; ++j) o.write_shift(4, 0);
  			for(j = 0; j < 3; ++j) o.write_shift(4, -1);
  			for(j = 0; j < 12; ++j) o.write_shift(4, 0);
  			continue;
  		}
  		file = cfb.FileIndex[i];
  		if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN;
  		var _nm = (i === 0 && _opts.root) || file.name;
  		flen = 2*(_nm.length+1);
  		o.write_shift(64, _nm, "utf16le");
  		o.write_shift(2, flen);
  		o.write_shift(1, file.type);
  		o.write_shift(1, file.color);
  		o.write_shift(-4, file.L);
  		o.write_shift(-4, file.R);
  		o.write_shift(-4, file.C);
  		if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0);
  		else o.write_shift(16, file.clsid, "hex");
  		o.write_shift(4, file.state || 0);
  		o.write_shift(4, 0); o.write_shift(4, 0);
  		o.write_shift(4, 0); o.write_shift(4, 0);
  		o.write_shift(4, file.start);
  		o.write_shift(4, file.size); o.write_shift(4, 0);
  	}
  	for(i = 1; i < cfb.FileIndex.length; ++i) {
  		file = cfb.FileIndex[i];
  if(file.size >= 0x1000) {
  			o.l = (file.start+1) << 9;
  			for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
  			for(; j & 0x1FF; ++j) o.write_shift(1, 0);
  		}
  	}
  	for(i = 1; i < cfb.FileIndex.length; ++i) {
  		file = cfb.FileIndex[i];
  if(file.size > 0 && file.size < 0x1000) {
  			for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
  			for(; j & 0x3F; ++j) o.write_shift(1, 0);
  		}
  	}
  	while(o.l < o.length) o.write_shift(1, 0);
  	return o;
  }
  /* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */
  function find(cfb, path) {
  	var UCFullPaths = cfb.FullPaths.map(function(x) { return x.toUpperCase(); });
  	var UCPaths = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; });
  	var k = false;
  	if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; }
  	else k = path.indexOf("/") !== -1;
  	var UCPath = path.toUpperCase();
  	var w = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
  	if(w !== -1) return cfb.FileIndex[w];
  
  	var m = !UCPath.match(chr1);
  	UCPath = UCPath.replace(chr0,'');
  	if(m) UCPath = UCPath.replace(chr1,'!');
  	for(w = 0; w < UCFullPaths.length; ++w) {
  		if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
  		if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
  	}
  	return null;
  }
  /** CFB Constants */
  var MSSZ = 64; /* Mini Sector Size = 1<<6 */
  //var MSCSZ = 4096; /* Mini Stream Cutoff Size */
  /* 2.1 Compound File Sector Numbers and Types */
  var ENDOFCHAIN = -2;
  /* 2.2 Compound File Header */
  var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';
  var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];
  var HEADER_CLSID = '00000000000000000000000000000000';
  var consts = {
  	/* 2.1 Compund File Sector Numbers and Types */
  	MAXREGSECT: -6,
  	DIFSECT: -4,
  	FATSECT: -3,
  	ENDOFCHAIN: ENDOFCHAIN,
  	FREESECT: -1,
  	/* 2.2 Compound File Header */
  	HEADER_SIGNATURE: HEADER_SIGNATURE,
  	HEADER_MINOR_VERSION: '3e00',
  	MAXREGSID: -6,
  	NOSTREAM: -1,
  	HEADER_CLSID: HEADER_CLSID,
  	/* 2.6.1 Compound File Directory Entry */
  	EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
  };
  
  function write_file(cfb, filename, options) {
  	get_fs();
  	var o = _write(cfb, options);
  fs.writeFileSync(filename, o);
  }
  
  function a2s(o) {
  	var out = new Array(o.length);
  	for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]);
  	return out.join("");
  }
  
  function write(cfb, options) {
  	var o = _write(cfb, options);
  	switch(options && options.type) {
  		case "file": get_fs(); fs.writeFileSync(options.filename, (o)); return o;
  		case "binary": return a2s(o);
  		case "base64": return Base64.encode(a2s(o));
  	}
  	return o;
  }
  /* node < 8.1 zlib does not expose bytesRead, so default to pure JS */
  var _zlib;
  function use_zlib(zlib) { try {
  	var InflateRaw = zlib.InflateRaw;
  	var InflRaw = new InflateRaw();
  	InflRaw._processChunk(new Uint8Array([3, 0]), InflRaw._finishFlushFlag);
  	if(InflRaw.bytesRead) _zlib = zlib;
  	else throw new Error("zlib does not expose bytesRead");
  } catch(e) {console.error("cannot use native zlib: " + (e.message || e)); } }
  
  function _inflateRawSync(payload, usz) {
  	if(!_zlib) return _inflate(payload, usz);
  	var InflateRaw = _zlib.InflateRaw;
  	var InflRaw = new InflateRaw();
  	var out = InflRaw._processChunk(payload.slice(payload.l), InflRaw._finishFlushFlag);
  	payload.l += InflRaw.bytesRead;
  	return out;
  }
  
  function _deflateRawSync(payload) {
  	return _zlib ? _zlib.deflateRawSync(payload) : _deflate(payload);
  }
  var CLEN_ORDER = [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];
  
  /*  LEN_ID = [ 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285 ]; */
  var LEN_LN = [   3,   4,   5,   6,   7,   8,   9,  10,  11,  13 , 15,  17,  19,  23,  27,  31,  35,  43,  51,  59,  67,  83,  99, 115, 131, 163, 195, 227, 258 ];
  
  /*  DST_ID = [  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13,  14,  15,  16,  17,  18,  19,   20,   21,   22,   23,   24,   25,   26,    27,    28,    29 ]; */
  var DST_LN = [  1,  2,  3,  4,  5,  7,  9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577 ];
  
  function bit_swap_8(n) { var t = (((((n<<1)|(n<<11)) & 0x22110) | (((n<<5)|(n<<15)) & 0x88440))); return ((t>>16) | (t>>8) |t)&0xFF; }
  
  var use_typed_arrays = typeof Uint8Array !== 'undefined';
  
  var bitswap8 = use_typed_arrays ? new Uint8Array(1<<8) : [];
  for(var q = 0; q < (1<<8); ++q) bitswap8[q] = bit_swap_8(q);
  
  function bit_swap_n(n, b) {
  	var rev = bitswap8[n & 0xFF];
  	if(b <= 8) return rev >>> (8-b);
  	rev = (rev << 8) | bitswap8[(n>>8)&0xFF];
  	if(b <= 16) return rev >>> (16-b);
  	rev = (rev << 8) | bitswap8[(n>>16)&0xFF];
  	return rev >>> (24-b);
  }
  
  /* helpers for unaligned bit reads */
  function read_bits_2(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 6 ? 0 : buf[h+1]<<8))>>>w)& 0x03; }
  function read_bits_3(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 5 ? 0 : buf[h+1]<<8))>>>w)& 0x07; }
  function read_bits_4(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 4 ? 0 : buf[h+1]<<8))>>>w)& 0x0F; }
  function read_bits_5(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 3 ? 0 : buf[h+1]<<8))>>>w)& 0x1F; }
  function read_bits_7(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 1 ? 0 : buf[h+1]<<8))>>>w)& 0x7F; }
  
  /* works up to n = 3 * 8 + 1 = 25 */
  function read_bits_n(buf, bl, n) {
  	var w = (bl&7), h = (bl>>>3), f = ((1<<n)-1);
  	var v = buf[h] >>> w;
  	if(n < 8 - w) return v & f;
  	v |= buf[h+1]<<(8-w);
  	if(n < 16 - w) return v & f;
  	v |= buf[h+2]<<(16-w);
  	if(n < 24 - w) return v & f;
  	v |= buf[h+3]<<(24-w);
  	return v & f;
  }
  
  /* until ArrayBuffer#realloc is a thing, fake a realloc */
  function realloc(b, sz) {
  	var L = b.length, M = 2*L > sz ? 2*L : sz + 5, i = 0;
  	if(L >= sz) return b;
  	if(has_buf) {
  		var o = new_unsafe_buf(M);
  		// $FlowIgnore
  		if(b.copy) b.copy(o);
  		else for(; i < b.length; ++i) o[i] = b[i];
  		return o;
  	} else if(use_typed_arrays) {
  		var a = new Uint8Array(M);
  		if(a.set) a.set(b);
  		else for(; i < b.length; ++i) a[i] = b[i];
  		return a;
  	}
  	b.length = M;
  	return b;
  }
  
  /* zero-filled arrays for older browsers */
  function zero_fill_array(n) {
  	var o = new Array(n);
  	for(var i = 0; i < n; ++i) o[i] = 0;
  	return o;
  }var _deflate = (function() {
  var _deflateRaw = (function() {
  	return function deflateRaw(data, out) {
  		var boff = 0;
  		while(boff < data.length) {
  			var L = Math.min(0xFFFF, data.length - boff);
  			var h = boff + L == data.length;
  			/* TODO: this is only type 0 stored */
  			out.write_shift(1, +h);
  			out.write_shift(2, L);
  			out.write_shift(2, (~L) & 0xFFFF);
  			while(L-- > 0) out[out.l++] = data[boff++];
  		}
  		return out.l;
  	};
  })();
  
  return function(data) {
  	var buf = new_buf(50+Math.floor(data.length*1.1));
  	var off = _deflateRaw(data, buf);
  	return buf.slice(0, off);
  };
  })();
  /* modified inflate function also moves original read head */
  
  /* build tree (used for literals and lengths) */
  function build_tree(clens, cmap, MAX) {
  	var maxlen = 1, w = 0, i = 0, j = 0, ccode = 0, L = clens.length;
  
  	var bl_count  = use_typed_arrays ? new Uint16Array(32) : zero_fill_array(32);
  	for(i = 0; i < 32; ++i) bl_count[i] = 0;
  
  	for(i = L; i < MAX; ++i) clens[i] = 0;
  	L = clens.length;
  
  	var ctree = use_typed_arrays ? new Uint16Array(L) : zero_fill_array(L); // []
  
  	/* build code tree */
  	for(i = 0; i < L; ++i) {
  		bl_count[(w = clens[i])]++;
  		if(maxlen < w) maxlen = w;
  		ctree[i] = 0;
  	}
  	bl_count[0] = 0;
  	for(i = 1; i <= maxlen; ++i) bl_count[i+16] = (ccode = (ccode + bl_count[i-1])<<1);
  	for(i = 0; i < L; ++i) {
  		ccode = clens[i];
  		if(ccode != 0) ctree[i] = bl_count[ccode+16]++;
  	}
  
  	/* cmap[maxlen + 4 bits] = (off&15) + (lit<<4) reverse mapping */
  	var cleni = 0;
  	for(i = 0; i < L; ++i) {
  		cleni = clens[i];
  		if(cleni != 0) {
  			ccode = bit_swap_n(ctree[i], maxlen)>>(maxlen-cleni);
  			for(j = (1<<(maxlen + 4 - cleni)) - 1; j>=0; --j)
  				cmap[ccode|(j<<cleni)] = (cleni&15) | (i<<4);
  		}
  	}
  	return maxlen;
  }
  
  var fix_lmap = use_typed_arrays ? new Uint16Array(512) : zero_fill_array(512);
  var fix_dmap = use_typed_arrays ? new Uint16Array(32)  : zero_fill_array(32);
  if(!use_typed_arrays) {
  	for(var i = 0; i < 512; ++i) fix_lmap[i] = 0;
  	for(i = 0; i < 32; ++i) fix_dmap[i] = 0;
  }
  (function() {
  	var dlens = [];
  	var i = 0;
  	for(;i<32; i++) dlens.push(5);
  	build_tree(dlens, fix_dmap, 32);
  
  	var clens = [];
  	i = 0;
  	for(; i<=143; i++) clens.push(8);
  	for(; i<=255; i++) clens.push(9);
  	for(; i<=279; i++) clens.push(7);
  	for(; i<=287; i++) clens.push(8);
  	build_tree(clens, fix_lmap, 288);
  })();
  
  var dyn_lmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
  var dyn_dmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
  var dyn_cmap = use_typed_arrays ? new Uint16Array(128)   : zero_fill_array(128);
  var dyn_len_1 = 1, dyn_len_2 = 1;
  
  /* 5.5.3 Expanding Huffman Codes */
  function dyn(data, boff) {
  	/* nomenclature from RFC1951 refers to bit values; these are offset by the implicit constant */
  	var _HLIT = read_bits_5(data, boff) + 257; boff += 5;
  	var _HDIST = read_bits_5(data, boff) + 1; boff += 5;
  	var _HCLEN = read_bits_4(data, boff) + 4; boff += 4;
  	var w = 0;
  
  	/* grab and store code lengths */
  	var clens = use_typed_arrays ? new Uint8Array(19) : zero_fill_array(19);
  	var ctree = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
  	var maxlen = 1;
  	var bl_count =  use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
  	var next_code = use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
  	var L = clens.length; /* 19 */
  	for(var i = 0; i < _HCLEN; ++i) {
  		clens[CLEN_ORDER[i]] = w = read_bits_3(data, boff);
  		if(maxlen < w) maxlen = w;
  		bl_count[w]++;
  		boff += 3;
  	}
  
  	/* build code tree */
  	var ccode = 0;
  	bl_count[0] = 0;
  	for(i = 1; i <= maxlen; ++i) next_code[i] = ccode = (ccode + bl_count[i-1])<<1;
  	for(i = 0; i < L; ++i) if((ccode = clens[i]) != 0) ctree[i] = next_code[ccode]++;
  	/* cmap[7 bits from stream] = (off&7) + (lit<<3) */
  	var cleni = 0;
  	for(i = 0; i < L; ++i) {
  		cleni = clens[i];
  		if(cleni != 0) {
  			ccode = bitswap8[ctree[i]]>>(8-cleni);
  			for(var j = (1<<(7-cleni))-1; j>=0; --j) dyn_cmap[ccode|(j<<cleni)] = (cleni&7) | (i<<3);
  		}
  	}
  
  	/* read literal and dist codes at once */
  	var hcodes = [];
  	maxlen = 1;
  	for(; hcodes.length < _HLIT + _HDIST;) {
  		ccode = dyn_cmap[read_bits_7(data, boff)];
  		boff += ccode & 7;
  		switch((ccode >>>= 3)) {
  			case 16:
  				w = 3 + read_bits_2(data, boff); boff += 2;
  				ccode = hcodes[hcodes.length - 1];
  				while(w-- > 0) hcodes.push(ccode);
  				break;
  			case 17:
  				w = 3 + read_bits_3(data, boff); boff += 3;
  				while(w-- > 0) hcodes.push(0);
  				break;
  			case 18:
  				w = 11 + read_bits_7(data, boff); boff += 7;
  				while(w -- > 0) hcodes.push(0);
  				break;
  			default:
  				hcodes.push(ccode);
  				if(maxlen < ccode) maxlen = ccode;
  				break;
  		}
  	}
  
  	/* build literal / length trees */
  	var h1 = hcodes.slice(0, _HLIT), h2 = hcodes.slice(_HLIT);
  	for(i = _HLIT; i < 286; ++i) h1[i] = 0;
  	for(i = _HDIST; i < 30; ++i) h2[i] = 0;
  	dyn_len_1 = build_tree(h1, dyn_lmap, 286);
  	dyn_len_2 = build_tree(h2, dyn_dmap, 30);
  	return boff;
  }
  
  /* return [ data, bytesRead ] */
  function inflate(data, usz) {
  	/* shortcircuit for empty buffer [0x03, 0x00] */
  	if(data[0] == 3 && !(data[1] & 0x3)) { return [new_raw_buf(usz), 2]; }
  
  	/* bit offset */
  	var boff = 0;
  
  	/* header includes final bit and type bits */
  	var header = 0;
  
  	var outbuf = new_unsafe_buf(usz ? usz : (1<<18));
  	var woff = 0;
  	var OL = outbuf.length>>>0;
  	var max_len_1 = 0, max_len_2 = 0;
  
  	while((header&1) == 0) {
  		header = read_bits_3(data, boff); boff += 3;
  		if((header >>> 1) == 0) {
  			/* Stored block */
  			if(boff & 7) boff += 8 - (boff&7);
  			/* 2 bytes sz, 2 bytes bit inverse */
  			var sz = data[boff>>>3] | data[(boff>>>3)+1]<<8;
  			boff += 32;
  			/* push sz bytes */
  			if(!usz && OL < woff + sz) { outbuf = realloc(outbuf, woff + sz); OL = outbuf.length; }
  			if(typeof data.copy === 'function') {
  				// $FlowIgnore
  				data.copy(outbuf, woff, boff>>>3, (boff>>>3)+sz);
  				woff += sz; boff += 8*sz;
  			} else while(sz-- > 0) { outbuf[woff++] = data[boff>>>3]; boff += 8; }
  			continue;
  		} else if((header >>> 1) == 1) {
  			/* Fixed Huffman */
  			max_len_1 = 9; max_len_2 = 5;
  		} else {
  			/* Dynamic Huffman */
  			boff = dyn(data, boff);
  			max_len_1 = dyn_len_1; max_len_2 = dyn_len_2;
  		}
  		if(!usz && (OL < woff + 32767)) { outbuf = realloc(outbuf, woff + 32767); OL = outbuf.length; }
  		for(;;) { // while(true) is apparently out of vogue in modern JS circles
  			/* ingest code and move read head */
  			var bits = read_bits_n(data, boff, max_len_1);
  			var code = (header>>>1) == 1 ? fix_lmap[bits] : dyn_lmap[bits];
  			boff += code & 15; code >>>= 4;
  			/* 0-255 are literals, 256 is end of block token, 257+ are copy tokens */
  			if(((code>>>8)&0xFF) === 0) outbuf[woff++] = code;
  			else if(code == 256) break;
  			else {
  				code -= 257;
  				var len_eb = (code < 8) ? 0 : ((code-4)>>2); if(len_eb > 5) len_eb = 0;
  				var tgt = woff + LEN_LN[code];
  				/* length extra bits */
  				if(len_eb > 0) {
  					tgt += read_bits_n(data, boff, len_eb);
  					boff += len_eb;
  				}
  
  				/* dist code */
  				bits = read_bits_n(data, boff, max_len_2);
  				code = (header>>>1) == 1 ? fix_dmap[bits] : dyn_dmap[bits];
  				boff += code & 15; code >>>= 4;
  				var dst_eb = (code < 4 ? 0 : (code-2)>>1);
  				var dst = DST_LN[code];
  				/* dist extra bits */
  				if(dst_eb > 0) {
  					dst += read_bits_n(data, boff, dst_eb);
  					boff += dst_eb;
  				}
  
  				/* in the common case, manual byte copy is faster than TA set / Buffer copy */
  				if(!usz && OL < tgt) { outbuf = realloc(outbuf, tgt); OL = outbuf.length; }
  				while(woff < tgt) { outbuf[woff] = outbuf[woff - dst]; ++woff; }
  			}
  		}
  	}
  	return [usz ? outbuf : outbuf.slice(0, woff), (boff+7)>>>3];
  }
  
  function _inflate(payload, usz) {
  	var data = payload.slice(payload.l||0);
  	var out = inflate(data, usz);
  	payload.l += out[1];
  	return out[0];
  }
  
  function warn_or_throw(wrn, msg) {
  	if(wrn) { if(typeof console !== 'undefined') console.error(msg); }
  	else throw new Error(msg);
  }
  
  function parse_zip(file, options) {
  	var blob = file;
  	prep_blob(blob, 0);
  
  	var FileIndex = [], FullPaths = [];
  	var o = {
  		FileIndex: FileIndex,
  		FullPaths: FullPaths
  	};
  	init_cfb(o, { root: options.root });
  
  	/* find end of central directory, start just after signature */
  	var i = blob.length - 4;
  	while((blob[i] != 0x50 || blob[i+1] != 0x4b || blob[i+2] != 0x05 || blob[i+3] != 0x06) && i >= 0) --i;
  	blob.l = i + 4;
  
  	/* parse end of central directory */
  	blob.l += 4;
  	var fcnt = blob.read_shift(2);
  	blob.l += 6;
  	var start_cd = blob.read_shift(4);
  
  	/* parse central directory */
  	blob.l = start_cd;
  
  	for(i = 0; i < fcnt; ++i) {
  		/* trust local file header instead of CD entry */
  		blob.l += 20;
  		var csz = blob.read_shift(4);
  		var usz = blob.read_shift(4);
  		var namelen = blob.read_shift(2);
  		var efsz = blob.read_shift(2);
  		var fcsz = blob.read_shift(2);
  		blob.l += 8;
  		var offset = blob.read_shift(4);
  		var EF = parse_extra_field(blob.slice(blob.l+namelen, blob.l+namelen+efsz));
  		blob.l += namelen + efsz + fcsz;
  
  		var L = blob.l;
  		blob.l = offset + 4;
  		parse_local_file(blob, csz, usz, o, EF);
  		blob.l = L;
  	}
  
  	return o;
  }
  
  
  /* head starts just after local file header signature */
  function parse_local_file(blob, csz, usz, o, EF) {
  	/* [local file header] */
  	blob.l += 2;
  	var flags = blob.read_shift(2);
  	var meth = blob.read_shift(2);
  	var date = parse_dos_date(blob);
  
  	if(flags & 0x2041) throw new Error("Unsupported ZIP encryption");
  	var crc32 = blob.read_shift(4);
  	var _csz = blob.read_shift(4);
  	var _usz = blob.read_shift(4);
  
  	var namelen = blob.read_shift(2);
  	var efsz = blob.read_shift(2);
  
  	// TODO: flags & (1<<11) // UTF8
  	var name = ""; for(var i = 0; i < namelen; ++i) name += String.fromCharCode(blob[blob.l++]);
  	if(efsz) {
  		var ef = parse_extra_field(blob.slice(blob.l, blob.l + efsz));
  		if((ef[0x5455]||{}).mt) date = ef[0x5455].mt;
  		if(((EF||{})[0x5455]||{}).mt) date = EF[0x5455].mt;
  	}
  	blob.l += efsz;
  
  	/* [encryption header] */
  
  	/* [file data] */
  	var data = blob.slice(blob.l, blob.l + _csz);
  	switch(meth) {
  		case 8: data = _inflateRawSync(blob, _usz); break;
  		case 0: break;
  		default: throw new Error("Unsupported ZIP Compression method " + meth);
  	}
  
  	/* [data descriptor] */
  	var wrn = false;
  	if(flags & 8) {
  		crc32 = blob.read_shift(4);
  		if(crc32 == 0x08074b50) { crc32 = blob.read_shift(4); wrn = true; }
  		_csz = blob.read_shift(4);
  		_usz = blob.read_shift(4);
  	}
  
  	if(_csz != csz) warn_or_throw(wrn, "Bad compressed size: " + csz + " != " + _csz);
  	if(_usz != usz) warn_or_throw(wrn, "Bad uncompressed size: " + usz + " != " + _usz);
  	var _crc32 = CRC32.buf(data, 0);
  	if(crc32 != _crc32) warn_or_throw(wrn, "Bad CRC32 checksum: " + crc32 + " != " + _crc32);
  	cfb_add(o, name, data, {unsafe: true, mt: date});
  }
  function write_zip(cfb, options) {
  	var _opts = options || {};
  	var out = [], cdirs = [];
  	var o = new_buf(1);
  	var method = (_opts.compression ? 8 : 0), flags = 0;
  	var desc = false;
  	if(desc) flags |= 8;
  	var i = 0, j = 0;
  
  	var start_cd = 0, fcnt = 0;
  	var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0];
  	var crcs = [];
  	var sz_cd = 0;
  
  	for(i = 1; i < cfb.FullPaths.length; ++i) {
  		fp = cfb.FullPaths[i].slice(root.length); fi = cfb.FileIndex[i];
  		if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue;
  		var start = start_cd;
  
  		/* TODO: CP437 filename */
  		var namebuf = new_buf(fp.length);
  		for(j = 0; j < fp.length; ++j) namebuf.write_shift(1, fp.charCodeAt(j) & 0x7F);
  		namebuf = namebuf.slice(0, namebuf.l);
  		crcs[fcnt] = CRC32.buf(fi.content, 0);
  
  		var outbuf = fi.content;
  		if(method == 8) outbuf = _deflateRawSync(outbuf);
  
  		/* local file header */
  		o = new_buf(30);
  		o.write_shift(4, 0x04034b50);
  		o.write_shift(2, 20);
  		o.write_shift(2, flags);
  		o.write_shift(2, method);
  		/* TODO: last mod file time/date */
  		if(fi.mt) write_dos_date(o, fi.mt);
  		else o.write_shift(4, 0);
  		o.write_shift(-4, (flags & 8) ? 0 : crcs[fcnt]);
  		o.write_shift(4,  (flags & 8) ? 0 : outbuf.length);
  		o.write_shift(4,  (flags & 8) ? 0 : fi.content.length);
  		o.write_shift(2, namebuf.length);
  		o.write_shift(2, 0);
  
  		start_cd += o.length;
  		out.push(o);
  		start_cd += namebuf.length;
  		out.push(namebuf);
  
  		/* TODO: encryption header ? */
  		start_cd += outbuf.length;
  		out.push(outbuf);
  
  		/* data descriptor */
  		if(flags & 8) {
  			o = new_buf(12);
  			o.write_shift(-4, crcs[fcnt]);
  			o.write_shift(4, outbuf.length);
  			o.write_shift(4, fi.content.length);
  			start_cd += o.l;
  			out.push(o);
  		}
  
  		/* central directory */
  		o = new_buf(46);
  		o.write_shift(4, 0x02014b50);
  		o.write_shift(2, 0);
  		o.write_shift(2, 20);
  		o.write_shift(2, flags);
  		o.write_shift(2, method);
  		o.write_shift(4, 0); /* TODO: last mod file time/date */
  		o.write_shift(-4, crcs[fcnt]);
  
  		o.write_shift(4, outbuf.length);
  		o.write_shift(4, fi.content.length);
  		o.write_shift(2, namebuf.length);
  		o.write_shift(2, 0);
  		o.write_shift(2, 0);
  		o.write_shift(2, 0);
  		o.write_shift(2, 0);
  		o.write_shift(4, 0);
  		o.write_shift(4, start);
  
  		sz_cd += o.l;
  		cdirs.push(o);
  		sz_cd += namebuf.length;
  		cdirs.push(namebuf);
  		++fcnt;
  	}
  
  	/* end of central directory */
  	o = new_buf(22);
  	o.write_shift(4, 0x06054b50);
  	o.write_shift(2, 0);
  	o.write_shift(2, 0);
  	o.write_shift(2, fcnt);
  	o.write_shift(2, fcnt);
  	o.write_shift(4, sz_cd);
  	o.write_shift(4, start_cd);
  	o.write_shift(2, 0);
  
  	return bconcat(([bconcat((out)), bconcat(cdirs), o]));
  }
  function cfb_new(opts) {
  	var o = ({});
  	init_cfb(o, opts);
  	return o;
  }
  
  function cfb_add(cfb, name, content, opts) {
  	var unsafe = opts && opts.unsafe;
  	if(!unsafe) init_cfb(cfb);
  	var file = !unsafe && CFB.find(cfb, name);
  	if(!file) {
  		var fpath = cfb.FullPaths[0];
  		if(name.slice(0, fpath.length) == fpath) fpath = name;
  		else {
  			if(fpath.slice(-1) != "/") fpath += "/";
  			fpath = (fpath + name).replace("//","/");
  		}
  		file = ({name: filename(name), type: 2});
  		cfb.FileIndex.push(file);
  		cfb.FullPaths.push(fpath);
  		if(!unsafe) CFB.utils.cfb_gc(cfb);
  	}
  file.content = (content);
  	file.size = content ? content.length : 0;
  	if(opts) {
  		if(opts.CLSID) file.clsid = opts.CLSID;
  		if(opts.mt) file.mt = opts.mt;
  		if(opts.ct) file.ct = opts.ct;
  	}
  	return file;
  }
  
  function cfb_del(cfb, name) {
  	init_cfb(cfb);
  	var file = CFB.find(cfb, name);
  	if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
  		cfb.FileIndex.splice(j, 1);
  		cfb.FullPaths.splice(j, 1);
  		return true;
  	}
  	return false;
  }
  
  function cfb_mov(cfb, old_name, new_name) {
  	init_cfb(cfb);
  	var file = CFB.find(cfb, old_name);
  	if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
  		cfb.FileIndex[j].name = filename(new_name);
  		cfb.FullPaths[j] = new_name;
  		return true;
  	}
  	return false;
  }
  
  function cfb_gc(cfb) { rebuild_cfb(cfb, true); }
  
  exports.find = find;
  exports.read = read;
  exports.parse = parse;
  exports.write = write;
  exports.writeFile = write_file;
  exports.utils = {
  	cfb_new: cfb_new,
  	cfb_add: cfb_add,
  	cfb_del: cfb_del,
  	cfb_mov: cfb_mov,
  	cfb_gc: cfb_gc,
  	ReadShift: ReadShift,
  	CheckField: CheckField,
  	prep_blob: prep_blob,
  	bconcat: bconcat,
  	use_zlib: use_zlib,
  	_deflateRaw: _deflate,
  	_inflateRaw: _inflate,
  	consts: consts
  };
  
  return exports;
  })();
  
  if(typeof require !== 'undefined' && typeof module !== 'undefined' && typeof DO_NOT_EXPORT_CFB === 'undefined') { module.exports = CFB; }
  var _fs;
  if(typeof require !== 'undefined') try { _fs = require('fs'); } catch(e) {}
  
  /* normalize data for blob ctor */
  function blobify(data) {
  	if(typeof data === "string") return s2ab(data);
  	if(Array.isArray(data)) return a2u(data);
  	return data;
  }
  /* write or download file */
  function write_dl(fname, payload, enc) {
  	/*global IE_SaveFile, Blob, navigator, saveAs, URL, document, File, chrome */
  	if(typeof _fs !== 'undefined' && _fs.writeFileSync) return enc ? _fs.writeFileSync(fname, payload, enc) : _fs.writeFileSync(fname, payload);
  	var data = (enc == "utf8") ? utf8write(payload) : payload;
  if(typeof IE_SaveFile !== 'undefined') return IE_SaveFile(data, fname);
  	if(typeof Blob !== 'undefined') {
  		var blob = new Blob([blobify(data)], {type:"application/octet-stream"});
  if(typeof navigator !== 'undefined' && navigator.msSaveBlob) return navigator.msSaveBlob(blob, fname);
  if(typeof saveAs !== 'undefined') return saveAs(blob, fname);
  		if(typeof URL !== 'undefined' && typeof document !== 'undefined' && document.createElement && URL.createObjectURL) {
  			var url = URL.createObjectURL(blob);
  if(typeof chrome === 'object' && typeof (chrome.downloads||{}).download == "function") {
  				if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
  				return chrome.downloads.download({ url: url, filename: fname, saveAs: true});
  			}
  			var a = document.createElement("a");
  			if(a.download != null) {
  a.download = fname; a.href = url; document.body.appendChild(a); a.click();
  document.body.removeChild(a);
  				if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
  				return url;
  			}
  		}
  	}
  	// $FlowIgnore
  	if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
  		// $FlowIgnore
  		var out = File(fname); out.open("w"); out.encoding = "binary";
  		if(Array.isArray(payload)) payload = a2s(payload);
  		out.write(payload); out.close(); return payload;
  	} catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
  	throw new Error("cannot save file " + fname);
  }
  
  /* read binary data from file */
  function read_binary(path) {
  	if(typeof _fs !== 'undefined') return _fs.readFileSync(path);
  	// $FlowIgnore
  	if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
  		// $FlowIgnore
  		var infile = File(path); infile.open("r"); infile.encoding = "binary";
  		var data = infile.read(); infile.close();
  		return data;
  	} catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
  	throw new Error("Cannot access file " + path);
  }
  function keys(o) {
  	var ks = Object.keys(o), o2 = [];
  	for(var i = 0; i < ks.length; ++i) if(o.hasOwnProperty(ks[i])) o2.push(ks[i]);
  	return o2;
  }
  
  function evert_key(obj, key) {
  	var o = ([]), K = keys(obj);
  	for(var i = 0; i !== K.length; ++i) if(o[obj[K[i]][key]] == null) o[obj[K[i]][key]] = K[i];
  	return o;
  }
  
  function evert(obj) {
  	var o = ([]), K = keys(obj);
  	for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = K[i];
  	return o;
  }
  
  function evert_num(obj) {
  	var o = ([]), K = keys(obj);
  	for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = parseInt(K[i],10);
  	return o;
  }
  
  function evert_arr(obj) {
  	var o = ([]), K = keys(obj);
  	for(var i = 0; i !== K.length; ++i) {
  		if(o[obj[K[i]]] == null) o[obj[K[i]]] = [];
  		o[obj[K[i]]].push(K[i]);
  	}
  	return o;
  }
  
  var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
  function datenum(v, date1904) {
  	var epoch = v.getTime();
  	if(date1904) epoch -= 1462*24*60*60*1000;
  	var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
  	return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
  }
  var refdate = new Date();
  var dnthresh = basedate.getTime() + (refdate.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
  var refoffset = refdate.getTimezoneOffset();
  function numdate(v) {
  	var out = new Date();
  	out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
  	if (out.getTimezoneOffset() !== refoffset) {
  		out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
  	}
  	return out;
  }
  
  /* ISO 8601 Duration */
  function parse_isodur(s) {
  	var sec = 0, mt = 0, time = false;
  	var m = s.match(/P([0-9\.]+Y)?([0-9\.]+M)?([0-9\.]+D)?T([0-9\.]+H)?([0-9\.]+M)?([0-9\.]+S)?/);
  	if(!m) throw new Error("|" + s + "| is not an ISO8601 Duration");
  	for(var i = 1; i != m.length; ++i) {
  		if(!m[i]) continue;
  		mt = 1;
  		if(i > 3) time = true;
  		switch(m[i].slice(m[i].length-1)) {
  			case 'Y':
  				throw new Error("Unsupported ISO Duration Field: " + m[i].slice(m[i].length-1));
  			case 'D': mt *= 24;
  				/* falls through */
  			case 'H': mt *= 60;
  				/* falls through */
  			case 'M':
  				if(!time) throw new Error("Unsupported ISO Duration Field: M");
  				else mt *= 60;
  				/* falls through */
  			case 'S': break;
  		}
  		sec += mt * parseInt(m[i], 10);
  	}
  	return sec;
  }
  
  var good_pd_date = new Date('2017-02-19T19:06:09.000Z');
  if(isNaN(good_pd_date.getFullYear())) good_pd_date = new Date('2/19/17');
  var good_pd = good_pd_date.getFullYear() == 2017;
  /* parses a date as a local date */
  function parseDate(str, fixdate) {
  	var d = new Date(str);
  	if(good_pd) {
  if(fixdate > 0) d.setTime(d.getTime() + d.getTimezoneOffset() * 60 * 1000);
  		else if(fixdate < 0) d.setTime(d.getTime() - d.getTimezoneOffset() * 60 * 1000);
  		return d;
  	}
  	if(str instanceof Date) return str;
  	if(good_pd_date.getFullYear() == 1917 && !isNaN(d.getFullYear())) {
  		var s = d.getFullYear();
  		if(str.indexOf("" + s) > -1) return d;
  		d.setFullYear(d.getFullYear() + 100); return d;
  	}
  	var n = str.match(/\d+/g)||["2017","2","19","0","0","0"];
  	var out = new Date(+n[0], +n[1] - 1, +n[2], (+n[3]||0), (+n[4]||0), (+n[5]||0));
  	if(str.indexOf("Z") > -1) out = new Date(out.getTime() - out.getTimezoneOffset() * 60 * 1000);
  	return out;
  }
  
  function cc2str(arr) {
  	var o = "";
  	for(var i = 0; i != arr.length; ++i) o += String.fromCharCode(arr[i]);
  	return o;
  }
  
  function dup(o) {
  	if(typeof JSON != 'undefined' && !Array.isArray(o)) return JSON.parse(JSON.stringify(o));
  	if(typeof o != 'object' || o == null) return o;
  	if(o instanceof Date) return new Date(o.getTime());
  	var out = {};
  	for(var k in o) if(o.hasOwnProperty(k)) out[k] = dup(o[k]);
  	return out;
  }
  
  function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }
  
  /* TODO: stress test */
  function fuzzynum(s) {
  	var v = Number(s);
  	if(!isNaN(v)) return v;
  	var wt = 1;
  	var ss = s.replace(/([\d]),([\d])/g,"$1$2").replace(/[$]/g,"").replace(/[%]/g, function() { wt *= 100; return "";});
  	if(!isNaN(v = Number(ss))) return v / wt;
  	ss = ss.replace(/[(](.*)[)]/,function($$, $1) { wt = -wt; return $1;});
  	if(!isNaN(v = Number(ss))) return v / wt;
  	return v;
  }
  function fuzzydate(s) {
  	var o = new Date(s), n = new Date(NaN);
  	var y = o.getYear(), m = o.getMonth(), d = o.getDate();
  	if(isNaN(d)) return n;
  	if(y < 0 || y > 8099) return n;
  	if((m > 0 || d > 1) && y != 101) return o;
  	if(s.toLowerCase().match(/jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec/)) return o;
  	if(s.match(/[^-0-9:,\/\\]/)) return n;
  	return o;
  }
  
  var safe_split_regex = "abacaba".split(/(:?b)/i).length == 5;
  function split_regex(str, re, def) {
  	if(safe_split_regex || typeof re == "string") return str.split(re);
  	var p = str.split(re), o = [p[0]];
  	for(var i = 1; i < p.length; ++i) { o.push(def); o.push(p[i]); }
  	return o;
  }
  function getdatastr(data) {
  	if(!data) return null;
  	if(data.data) return debom(data.data);
  	if(data.asNodeBuffer && has_buf) return debom(data.asNodeBuffer().toString('binary'));
  	if(data.asBinary) return debom(data.asBinary());
  	if(data._data && data._data.getContent) return debom(cc2str(Array.prototype.slice.call(data._data.getContent(),0)));
  	return null;
  }
  
  function getdatabin(data) {
  	if(!data) return null;
  	if(data.data) return char_codes(data.data);
  	if(data.asNodeBuffer && has_buf) return data.asNodeBuffer();
  	if(data._data && data._data.getContent) {
  		var o = data._data.getContent();
  		if(typeof o == "string") return char_codes(o);
  		return Array.prototype.slice.call(o);
  	}
  	return null;
  }
  
  function getdata(data) { return (data && data.name.slice(-4) === ".bin") ? getdatabin(data) : getdatastr(data); }
  
  /* Part 2 Section 10.1.2 "Mapping Content Types" Names are case-insensitive */
  /* OASIS does not comment on filename case sensitivity */
  function safegetzipfile(zip, file) {
  	var k = keys(zip.files);
  	var f = file.toLowerCase(), g = f.replace(/\//g,'\\');
  	for(var i=0; i<k.length; ++i) {
  		var n = k[i].toLowerCase();
  		if(f == n || g == n) return zip.files[k[i]];
  	}
  	return null;
  }
  
  function getzipfile(zip, file) {
  	var o = safegetzipfile(zip, file);
  	if(o == null) throw new Error("Cannot find file " + file + " in zip");
  	return o;
  }
  
  function getzipdata(zip, file, safe) {
  	if(!safe) return getdata(getzipfile(zip, file));
  	if(!file) return null;
  	try { return getzipdata(zip, file); } catch(e) { return null; }
  }
  
  function getzipstr(zip, file, safe) {
  	if(!safe) return getdatastr(getzipfile(zip, file));
  	if(!file) return null;
  	try { return getzipstr(zip, file); } catch(e) { return null; }
  }
  
  function zipentries(zip) {
  	var k = keys(zip.files), o = [];
  	for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i]);
  	return o.sort();
  }
  
  var jszip;
  /*global JSZipSync:true */
  if(typeof JSZipSync !== 'undefined') jszip = JSZipSync;
  if(typeof exports !== 'undefined') {
  	if(typeof module !== 'undefined' && module.exports) {
  		if(typeof jszip === 'undefined') jszip = require('./jszip.js');
  	}
  }
  
  function resolve_path(path, base) {
  	var result = base.split('/');
  	if(base.slice(-1) != "/") result.pop(); // folder path
  	var target = path.split('/');
  	while (target.length !== 0) {
  		var step = target.shift();
  		if (step === '..') result.pop();
  		else if (step !== '.') result.push(step);
  	}
  	return result.join('/');
  }
  var XML_HEADER = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\r\n';
  var attregexg=/([^"\s?>\/]+)\s*=\s*((?:")([^"]*)(?:")|(?:')([^']*)(?:')|([^'">\s]+))/g;
  var tagregex=/<[\/\?]?[a-zA-Z0-9:]+(?:\s+[^"\s?>\/]+\s*=\s*(?:"[^"]*"|'[^']*'|[^'">\s=]+))*\s?[\/\?]?>/g;
  if(!(XML_HEADER.match(tagregex))) tagregex = /<[^>]*>/g;
  var nsregex=/<\w*:/, nsregex2 = /<(\/?)\w+:/;
  function parsexmltag(tag, skip_root) {
  	var z = ({});
  	var eq = 0, c = 0;
  	for(; eq !== tag.length; ++eq) if((c = tag.charCodeAt(eq)) === 32 || c === 10 || c === 13) break;
  	if(!skip_root) z[0] = tag.slice(0, eq);
  	if(eq === tag.length) return z;
  	var m = tag.match(attregexg), j=0, v="", i=0, q="", cc="", quot = 1;
  	if(m) for(i = 0; i != m.length; ++i) {
  		cc = m[i];
  		for(c=0; c != cc.length; ++c) if(cc.charCodeAt(c) === 61) break;
  		q = cc.slice(0,c).trim();
  		while(cc.charCodeAt(c+1) == 32) ++c;
  		quot = ((eq=cc.charCodeAt(c+1)) == 34 || eq == 39) ? 1 : 0;
  		v = cc.slice(c+1+quot, cc.length-quot);
  		for(j=0;j!=q.length;++j) if(q.charCodeAt(j) === 58) break;
  		if(j===q.length) {
  			if(q.indexOf("_") > 0) q = q.slice(0, q.indexOf("_")); // from ods
  			z[q] = v;
  			z[q.toLowerCase()] = v;
  		}
  		else {
  			var k = (j===5 && q.slice(0,5)==="xmlns"?"xmlns":"")+q.slice(j+1);
  			if(z[k] && q.slice(j-3,j) == "ext") continue; // from ods
  			z[k] = v;
  			z[k.toLowerCase()] = v;
  		}
  	}
  	return z;
  }
  function strip_ns(x) { return x.replace(nsregex2, "<$1"); }
  
  var encodings = {
  	'&quot;': '"',
  	'&apos;': "'",
  	'&gt;': '>',
  	'&lt;': '<',
  	'&amp;': '&'
  };
  var rencoding = evert(encodings);
  //var rencstr = "&<>'\"".split("");
  
  // TODO: CP remap (need to read file version to determine OS)
  var unescapexml = (function() {
  	/* 22.4.2.4 bstr (Basic String) */
  	var encregex = /&(?:quot|apos|gt|lt|amp|#x?([\da-fA-F]+));/g, coderegex = /_x([\da-fA-F]{4})_/g;
  	return function unescapexml(text) {
  		var s = text + '', i = s.indexOf("<![CDATA[");
  		if(i == -1) return s.replace(encregex, function($$, $1) { return encodings[$$]||String.fromCharCode(parseInt($1,$$.indexOf("x")>-1?16:10))||$$; }).replace(coderegex,function(m,c) {return String.fromCharCode(parseInt(c,16));});
  		var j = s.indexOf("]]>");
  		return unescapexml(s.slice(0, i)) + s.slice(i+9,j) + unescapexml(s.slice(j+3));
  	};
  })();
  
  var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f]/g;
  function escapexml(text){
  	var s = text + '';
  	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(charegex,function(s) { return "_x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + "_";});
  }
  function escapexmltag(text){ return escapexml(text).replace(/ /g,"_x0020_"); }
  
  var htmlcharegex = /[\u0000-\u001f]/g;
  function escapehtml(text){
  	var s = text + '';
  	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(/\n/g, "<br/>").replace(htmlcharegex,function(s) { return "&#x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + ";"; });
  }
  
  function escapexlml(text){
  	var s = text + '';
  	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(htmlcharegex,function(s) { return "&#x" + (s.charCodeAt(0).toString(16)).toUpperCase() + ";"; });
  }
  
  /* TODO: handle codepages */
  var xlml_fixstr = (function() {
  	var entregex = /&#(\d+);/g;
  	function entrepl($$,$1) { return String.fromCharCode(parseInt($1,10)); }
  	return function xlml_fixstr(str) { return str.replace(entregex,entrepl); };
  })();
  var xlml_unfixstr = (function() {
  	return function xlml_unfixstr(str) { return str.replace(/(\r\n|[\r\n])/g,"\&#10;"); };
  })();
  
  function parsexmlbool(value) {
  	switch(value) {
  		case 1: case true: case '1': case 'true': case 'TRUE': return true;
  		/* case '0': case 'false': case 'FALSE':*/
  		default: return false;
  	}
  }
  
  var utf8read = function utf8reada(orig) {
  	var out = "", i = 0, c = 0, d = 0, e = 0, f = 0, w = 0;
  	while (i < orig.length) {
  		c = orig.charCodeAt(i++);
  		if (c < 128) { out += String.fromCharCode(c); continue; }
  		d = orig.charCodeAt(i++);
  		if (c>191 && c<224) { f = ((c & 31) << 6); f |= (d & 63); out += String.fromCharCode(f); continue; }
  		e = orig.charCodeAt(i++);
  		if (c < 240) { out += String.fromCharCode(((c & 15) << 12) | ((d & 63) << 6) | (e & 63)); continue; }
  		f = orig.charCodeAt(i++);
  		w = (((c & 7) << 18) | ((d & 63) << 12) | ((e & 63) << 6) | (f & 63))-65536;
  		out += String.fromCharCode(0xD800 + ((w>>>10)&1023));
  		out += String.fromCharCode(0xDC00 + (w&1023));
  	}
  	return out;
  };
  
  var utf8write = function(orig) {
  	var out = [], i = 0, c = 0, d = 0;
  	while(i < orig.length) {
  		c = orig.charCodeAt(i++);
  		switch(true) {
  			case c < 128: out.push(String.fromCharCode(c)); break;
  			case c < 2048:
  				out.push(String.fromCharCode(192 + (c >> 6)));
  				out.push(String.fromCharCode(128 + (c & 63)));
  				break;
  			case c >= 55296 && c < 57344:
  				c -= 55296; d = orig.charCodeAt(i++) - 56320 + (c<<10);
  				out.push(String.fromCharCode(240 + ((d >>18) & 7)));
  				out.push(String.fromCharCode(144 + ((d >>12) & 63)));
  				out.push(String.fromCharCode(128 + ((d >> 6) & 63)));
  				out.push(String.fromCharCode(128 + (d & 63)));
  				break;
  			default:
  				out.push(String.fromCharCode(224 + (c >> 12)));
  				out.push(String.fromCharCode(128 + ((c >> 6) & 63)));
  				out.push(String.fromCharCode(128 + (c & 63)));
  		}
  	}
  	return out.join("");
  };
  
  if(has_buf) {
  	var utf8readb = function utf8readb(data) {
  		var out = Buffer.alloc(2*data.length), w, i, j = 1, k = 0, ww=0, c;
  		for(i = 0; i < data.length; i+=j) {
  			j = 1;
  			if((c=data.charCodeAt(i)) < 128) w = c;
  			else if(c < 224) { w = (c&31)*64+(data.charCodeAt(i+1)&63); j=2; }
  			else if(c < 240) { w=(c&15)*4096+(data.charCodeAt(i+1)&63)*64+(data.charCodeAt(i+2)&63); j=3; }
  			else { j = 4;
  				w = (c & 7)*262144+(data.charCodeAt(i+1)&63)*4096+(data.charCodeAt(i+2)&63)*64+(data.charCodeAt(i+3)&63);
  				w -= 65536; ww = 0xD800 + ((w>>>10)&1023); w = 0xDC00 + (w&1023);
  			}
  			if(ww !== 0) { out[k++] = ww&255; out[k++] = ww>>>8; ww = 0; }
  			out[k++] = w%256; out[k++] = w>>>8;
  		}
  		return out.slice(0,k).toString('ucs2');
  	};
  	var corpus = "foo bar baz\u00e2\u0098\u0083\u00f0\u009f\u008d\u00a3";
  	if(utf8read(corpus) == utf8readb(corpus)) utf8read = utf8readb;
  	// $FlowIgnore
  	var utf8readc = function utf8readc(data) { return Buffer_from(data, 'binary').toString('utf8'); };
  	if(utf8read(corpus) == utf8readc(corpus)) utf8read = utf8readc;
  
  	// $FlowIgnore
  	utf8write = function(data) { return Buffer_from(data, 'utf8').toString("binary"); };
  }
  
  // matches <foo>...</foo> extracts content
  var matchtag = (function() {
  	var mtcache = ({});
  	return function matchtag(f,g) {
  		var t = f+"|"+(g||"");
  		if(mtcache[t]) return mtcache[t];
  		return (mtcache[t] = new RegExp('<(?:\\w+:)?'+f+'(?: xml:space="preserve")?(?:[^>]*)>([\\s\\S]*?)</(?:\\w+:)?'+f+'>',((g||""))));
  	};
  })();
  
  var htmldecode = (function() {
  	var entities = [
  		['nbsp', ' '], ['middot', '·'],
  		['quot', '"'], ['apos', "'"], ['gt',   '>'], ['lt',   '<'], ['amp',  '&']
  	].map(function(x) { return [new RegExp('&' + x[0] + ';', "g"), x[1]]; });
  	return function htmldecode(str) {
  		var o = str.replace(/^[\t\n\r ]+/, "").replace(/[\t\n\r ]+$/,"").replace(/[\t\n\r ]+/g, " ").replace(/<\s*[bB][rR]\s*\/?>/g,"\n").replace(/<[^>]*>/g,"");
  		for(var i = 0; i < entities.length; ++i) o = o.replace(entities[i][0], entities[i][1]);
  		return o;
  	};
  })();
  
  var vtregex = (function(){ var vt_cache = {};
  	return function vt_regex(bt) {
  		if(vt_cache[bt] !== undefined) return vt_cache[bt];
  		return (vt_cache[bt] = new RegExp("<(?:vt:)?" + bt + ">([\\s\\S]*?)</(?:vt:)?" + bt + ">", 'g') );
  };})();
  var vtvregex = /<\/?(?:vt:)?variant>/g, vtmregex = /<(?:vt:)([^>]*)>([\s\S]*)</;
  function parseVector(data, opts) {
  	var h = parsexmltag(data);
  
  	var matches = data.match(vtregex(h.baseType))||[];
  	var res = [];
  	if(matches.length != h.size) {
  		if(opts.WTF) throw new Error("unexpected vector length " + matches.length + " != " + h.size);
  		return res;
  	}
  	matches.forEach(function(x) {
  		var v = x.replace(vtvregex,"").match(vtmregex);
  		if(v) res.push({v:utf8read(v[2]), t:v[1]});
  	});
  	return res;
  }
  
  var wtregex = /(^\s|\s$|\n)/;
  function writetag(f,g) { return '<' + f + (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f + '>'; }
  
  function wxt_helper(h) { return keys(h).map(function(k) { return " " + k + '="' + h[k] + '"';}).join(""); }
  function writextag(f,g,h) { return '<' + f + ((h != null) ? wxt_helper(h) : "") + ((g != null) ? (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f : "/") + '>';}
  
  function write_w3cdtf(d, t) { try { return d.toISOString().replace(/\.\d*/,""); } catch(e) { if(t) throw e; } return ""; }
  
  function write_vt(s) {
  	switch(typeof s) {
  		case 'string': return writextag('vt:lpwstr', s);
  		case 'number': return writextag((s|0)==s?'vt:i4':'vt:r8', String(s));
  		case 'boolean': return writextag('vt:bool',s?'true':'false');
  	}
  	if(s instanceof Date) return writextag('vt:filetime', write_w3cdtf(s));
  	throw new Error("Unable to serialize " + s);
  }
  
  var XMLNS = ({
  	'dc': 'http://purl.org/dc/elements/1.1/',
  	'dcterms': 'http://purl.org/dc/terms/',
  	'dcmitype': 'http://purl.org/dc/dcmitype/',
  	'mx': 'http://schemas.microsoft.com/office/mac/excel/2008/main',
  	'r': 'http://schemas.openxmlformats.org/officeDocument/2006/relationships',
  	'sjs': 'http://schemas.openxmlformats.org/package/2006/sheetjs/core-properties',
  	'vt': 'http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes',
  	'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
  	'xsd': 'http://www.w3.org/2001/XMLSchema'
  });
  
  XMLNS.main = [
  	'http://schemas.openxmlformats.org/spreadsheetml/2006/main',
  	'http://purl.oclc.org/ooxml/spreadsheetml/main',
  	'http://schemas.microsoft.com/office/excel/2006/main',
  	'http://schemas.microsoft.com/office/excel/2006/2'
  ];
  
  var XLMLNS = ({
  	'o':    'urn:schemas-microsoft-com:office:office',
  	'x':    'urn:schemas-microsoft-com:office:excel',
  	'ss':   'urn:schemas-microsoft-com:office:spreadsheet',
  	'dt':   'uuid:C2F41010-65B3-11d1-A29F-00AA00C14882',
  	'mv':   'http://macVmlSchemaUri',
  	'v':    'urn:schemas-microsoft-com:vml',
  	'html': 'http://www.w3.org/TR/REC-html40'
  });
  function read_double_le(b, idx) {
  	var s = 1 - 2 * (b[idx + 7] >>> 7);
  	var e = ((b[idx + 7] & 0x7f) << 4) + ((b[idx + 6] >>> 4) & 0x0f);
  	var m = (b[idx+6]&0x0f);
  	for(var i = 5; i >= 0; --i) m = m * 256 + b[idx + i];
  	if(e == 0x7ff) return m == 0 ? (s * Infinity) : NaN;
  	if(e == 0) e = -1022;
  	else { e -= 1023; m += Math.pow(2,52); }
  	return s * Math.pow(2, e - 52) * m;
  }
  
  function write_double_le(b, v, idx) {
  	var bs = ((((v < 0) || (1/v == -Infinity)) ? 1 : 0) << 7), e = 0, m = 0;
  	var av = bs ? (-v) : v;
  	if(!isFinite(av)) { e = 0x7ff; m = isNaN(v) ? 0x6969 : 0; }
  	else if(av == 0) e = m = 0;
  	else {
  		e = Math.floor(Math.log(av) / Math.LN2);
  		m = av * Math.pow(2, 52 - e);
  		if((e <= -1023) && (!isFinite(m) || (m < Math.pow(2,52)))) { e = -1022; }
  		else { m -= Math.pow(2,52); e+=1023; }
  	}
  	for(var i = 0; i <= 5; ++i, m/=256) b[idx + i] = m & 0xff;
  	b[idx + 6] = ((e & 0x0f) << 4) | (m & 0xf);
  	b[idx + 7] = (e >> 4) | bs;
  }
  
  var __toBuffer = function(bufs) { var x=[],w=10240; for(var i=0;i<bufs[0].length;++i) if(bufs[0][i]) for(var j=0,L=bufs[0][i].length;j<L;j+=w) x.push.apply(x, bufs[0][i].slice(j,j+w)); return x; };
  var ___toBuffer = __toBuffer;
  var __utf16le = function(b,s,e) { var ss=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
  var ___utf16le = __utf16le;
  var __hexlify = function(b,s,l) { var ss=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
  var ___hexlify = __hexlify;
  var __utf8 = function(b,s,e) { var ss=[]; for(var i=s; i<e; i++) ss.push(String.fromCharCode(__readUInt8(b,i))); return ss.join(""); };
  var ___utf8 = __utf8;
  var __lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___lpstr = __lpstr;
  var __cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___cpstr = __cpstr;
  var __lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___lpwstr = __lpwstr;
  var __lpp4, ___lpp4;
  __lpp4 = ___lpp4 = function lpp4_(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf16le(b, i+4,i+4+len) : "";};
  var __8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len) : "";};
  var ___8lpp4 = __8lpp4;
  var __double, ___double;
  __double = ___double = function(b, idx) { return read_double_le(b, idx);};
  var is_buf = function is_buf_a(a) { return Array.isArray(a); };
  
  if(has_buf) {
  	__utf16le = function(b,s,e) { if(!Buffer.isBuffer(b)) return ___utf16le(b,s,e); return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/; };
  	__hexlify = function(b,s,l) { return Buffer.isBuffer(b) ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); };
  	__lpstr = function lpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
  	__cpstr = function cpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___cpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
  	__lpwstr = function lpwstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpwstr(b, i); var len = 2*b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len-1);};
  	__lpp4 = function lpp4_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len);};
  	__8lpp4 = function lpp4_8b(b, i) { if(!Buffer.isBuffer(b)) return ___8lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf8',i+4,i+4+len);};
  	__utf8 = function utf8_b(b, s, e) { return (Buffer.isBuffer(b)) ? b.toString('utf8',s,e) : ___utf8(b,s,e); };
  	__toBuffer = function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat(bufs[0]) : ___toBuffer(bufs);};
  	bconcat = function(bufs) { return Buffer.isBuffer(bufs[0]) ? Buffer.concat(bufs) : [].concat.apply([], bufs); };
  	__double = function double_(b, i) { if(Buffer.isBuffer(b)) return b.readDoubleLE(i); return ___double(b,i); };
  	is_buf = function is_buf_b(a) { return Buffer.isBuffer(a) || Array.isArray(a); };
  }
  
  /* from js-xls */
  if(typeof cptable !== 'undefined') {
  	__utf16le = function(b,s,e) { return cptable.utils.decode(1200, b.slice(s,e)).replace(chr0, ''); };
  	__utf8 = function(b,s,e) { return cptable.utils.decode(65001, b.slice(s,e)); };
  	__lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_ansi, b.slice(i+4, i+4+len-1)) : "";};
  	__cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_codepage, b.slice(i+4, i+4+len-1)) : "";};
  	__lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len-1)) : "";};
  	__lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len)) : "";};
  	__8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(65001, b.slice(i+4,i+4+len)) : "";};
  }
  
  var __readUInt8 = function(b, idx) { return b[idx]; };
  var __readUInt16LE = function(b, idx) { return (b[idx+1]*(1<<8))+b[idx]; };
  var __readInt16LE = function(b, idx) { var u = (b[idx+1]*(1<<8))+b[idx]; return (u < 0x8000) ? u : ((0xffff - u + 1) * -1); };
  var __readUInt32LE = function(b, idx) { return b[idx+3]*(1<<24)+(b[idx+2]<<16)+(b[idx+1]<<8)+b[idx]; };
  var __readInt32LE = function(b, idx) { return (b[idx+3]<<24)|(b[idx+2]<<16)|(b[idx+1]<<8)|b[idx]; };
  var __readInt32BE = function(b, idx) { return (b[idx]<<24)|(b[idx+1]<<16)|(b[idx+2]<<8)|b[idx+3]; };
  
  function ReadShift(size, t) {
  	var o="", oI, oR, oo=[], w, vv, i, loc;
  	switch(t) {
  		case 'dbcs':
  			loc = this.l;
  			if(has_buf && Buffer.isBuffer(this)) o = this.slice(this.l, this.l+2*size).toString("utf16le");
  			else for(i = 0; i < size; ++i) { o+=String.fromCharCode(__readUInt16LE(this, loc)); loc+=2; }
  			size *= 2;
  			break;
  
  		case 'utf8': o = __utf8(this, this.l, this.l + size); break;
  		case 'utf16le': size *= 2; o = __utf16le(this, this.l, this.l + size); break;
  
  		case 'wstr':
  			if(typeof cptable !== 'undefined') o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l+2*size));
  			else return ReadShift.call(this, size, 'dbcs');
  			size = 2 * size; break;
  
  		/* [MS-OLEDS] 2.1.4 LengthPrefixedAnsiString */
  		case 'lpstr-ansi': o = __lpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
  		case 'lpstr-cp': o = __cpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
  		/* [MS-OLEDS] 2.1.5 LengthPrefixedUnicodeString */
  		case 'lpwstr': o = __lpwstr(this, this.l); size = 4 + 2 * __readUInt32LE(this, this.l); break;
  		/* [MS-OFFCRYPTO] 2.1.2 Length-Prefixed Padded Unicode String (UNICODE-LP-P4) */
  		case 'lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __lpp4(this, this.l); if(size & 0x02) size += 2; break;
  		/* [MS-OFFCRYPTO] 2.1.3 Length-Prefixed UTF-8 String (UTF-8-LP-P4) */
  		case '8lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __8lpp4(this, this.l); if(size & 0x03) size += 4 - (size & 0x03); break;
  
  		case 'cstr': size = 0; o = "";
  			while((w=__readUInt8(this, this.l + size++))!==0) oo.push(_getchar(w));
  			o = oo.join(""); break;
  		case '_wstr': size = 0; o = "";
  			while((w=__readUInt16LE(this,this.l +size))!==0){oo.push(_getchar(w));size+=2;}
  			size+=2; o = oo.join(""); break;
  
  		/* sbcs and dbcs support continue records in the SST way TODO codepages */
  		case 'dbcs-cont': o = ""; loc = this.l;
  			for(i = 0; i < size; ++i) {
  				if(this.lens && this.lens.indexOf(loc) !== -1) {
  					w = __readUInt8(this, loc);
  					this.l = loc + 1;
  					vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
  					return oo.join("") + vv;
  				}
  				oo.push(_getchar(__readUInt16LE(this, loc)));
  				loc+=2;
  			} o = oo.join(""); size *= 2; break;
  
  		case 'cpstr':
  			if(typeof cptable !== 'undefined') {
  				o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l + size));
  				break;
  			}
  		/* falls through */
  		case 'sbcs-cont': o = ""; loc = this.l;
  			for(i = 0; i != size; ++i) {
  				if(this.lens && this.lens.indexOf(loc) !== -1) {
  					w = __readUInt8(this, loc);
  					this.l = loc + 1;
  					vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
  					return oo.join("") + vv;
  				}
  				oo.push(_getchar(__readUInt8(this, loc)));
  				loc+=1;
  			} o = oo.join(""); break;
  
  		default:
  	switch(size) {
  		case 1: oI = __readUInt8(this, this.l); this.l++; return oI;
  		case 2: oI = (t === 'i' ? __readInt16LE : __readUInt16LE)(this, this.l); this.l += 2; return oI;
  		case 4: case -4:
  			if(t === 'i' || ((this[this.l+3] & 0x80)===0)) { oI = ((size > 0) ? __readInt32LE : __readInt32BE)(this, this.l); this.l += 4; return oI; }
  			else { oR = __readUInt32LE(this, this.l); this.l += 4; } return oR;
  		case 8: case -8:
  			if(t === 'f') {
  				if(size == 8) oR = __double(this, this.l);
  				else oR = __double([this[this.l+7],this[this.l+6],this[this.l+5],this[this.l+4],this[this.l+3],this[this.l+2],this[this.l+1],this[this.l+0]], 0);
  				this.l += 8; return oR;
  			} else size = 8;
  		/* falls through */
  		case 16: o = __hexlify(this, this.l, size); break;
  	}}
  	this.l+=size; return o;
  }
  
  var __writeUInt32LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); b[idx+2] = ((val >>> 16) & 0xFF); b[idx+3] = ((val >>> 24) & 0xFF); };
  var __writeInt32LE  = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >> 8) & 0xFF); b[idx+2] = ((val >> 16) & 0xFF); b[idx+3] = ((val >> 24) & 0xFF); };
  var __writeUInt16LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); };
  
  function WriteShift(t, val, f) {
  	var size = 0, i = 0;
  	if(f === 'dbcs') {
  for(i = 0; i != val.length; ++i) __writeUInt16LE(this, val.charCodeAt(i), this.l + 2 * i);
  		size = 2 * val.length;
  	} else if(f === 'sbcs') {
  		/* TODO: codepage */
  val = val.replace(/[^\x00-\x7F]/g, "_");
  for(i = 0; i != val.length; ++i) this[this.l + i] = (val.charCodeAt(i) & 0xFF);
  		size = val.length;
  	} else if(f === 'hex') {
  		for(; i < t; ++i) {
  this[this.l++] = (parseInt(val.slice(2*i, 2*i+2), 16)||0);
  		} return this;
  	} else if(f === 'utf16le') {
  var end = Math.min(this.l + t, this.length);
  			for(i = 0; i < Math.min(val.length, t); ++i) {
  				var cc = val.charCodeAt(i);
  				this[this.l++] = (cc & 0xff);
  				this[this.l++] = (cc >> 8);
  			}
  			while(this.l < end) this[this.l++] = 0;
  			return this;
  	} else  switch(t) {
  		case  1: size = 1; this[this.l] = val&0xFF; break;
  		case  2: size = 2; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; break;
  		case  3: size = 3; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; val >>>= 8; this[this.l+2] = val&0xFF; break;
  		case  4: size = 4; __writeUInt32LE(this, val, this.l); break;
  		case  8: size = 8; if(f === 'f') { write_double_le(this, val, this.l); break; }
  		/* falls through */
  		case 16: break;
  		case -4: size = 4; __writeInt32LE(this, val, this.l); break;
  	}
  	this.l += size; return this;
  }
  
  function CheckField(hexstr, fld) {
  	var m = __hexlify(this,this.l,hexstr.length>>1);
  	if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
  	this.l += hexstr.length>>1;
  }
  
  function prep_blob(blob, pos) {
  	blob.l = pos;
  	blob.read_shift = ReadShift;
  	blob.chk = CheckField;
  	blob.write_shift = WriteShift;
  }
  
  function parsenoop(blob, length) { blob.l += length; }
  
  function new_buf(sz) {
  	var o = new_raw_buf(sz);
  	prep_blob(o, 0);
  	return o;
  }
  
  /* [MS-XLSB] 2.1.4 Record */
  function recordhopper(data, cb, opts) {
  	if(!data) return;
  	var tmpbyte, cntbyte, length;
  	prep_blob(data, data.l || 0);
  	var L = data.length, RT = 0, tgt = 0;
  	while(data.l < L) {
  		RT = data.read_shift(1);
  		if(RT & 0x80) RT = (RT & 0x7F) + ((data.read_shift(1) & 0x7F)<<7);
  		var R = XLSBRecordEnum[RT] || XLSBRecordEnum[0xFFFF];
  		tmpbyte = data.read_shift(1);
  		length = tmpbyte & 0x7F;
  		for(cntbyte = 1; cntbyte <4 && (tmpbyte & 0x80); ++cntbyte) length += ((tmpbyte = data.read_shift(1)) & 0x7F)<<(7*cntbyte);
  		tgt = data.l + length;
  		var d = (R.f||parsenoop)(data, length, opts);
  		data.l = tgt;
  		if(cb(d, R.n, RT)) return;
  	}
  }
  
  /* control buffer usage for fixed-length buffers */
  function buf_array() {
  	var bufs = [], blksz = has_buf ? 256 : 2048;
  	var newblk = function ba_newblk(sz) {
  		var o = (new_buf(sz));
  		prep_blob(o, 0);
  		return o;
  	};
  
  	var curbuf = newblk(blksz);
  
  	var endbuf = function ba_endbuf() {
  		if(!curbuf) return;
  		if(curbuf.length > curbuf.l) { curbuf = curbuf.slice(0, curbuf.l); curbuf.l = curbuf.length; }
  		if(curbuf.length > 0) bufs.push(curbuf);
  		curbuf = null;
  	};
  
  	var next = function ba_next(sz) {
  		if(curbuf && (sz < (curbuf.length - curbuf.l))) return curbuf;
  		endbuf();
  		return (curbuf = newblk(Math.max(sz+1, blksz)));
  	};
  
  	var end = function ba_end() {
  		endbuf();
  		return __toBuffer([bufs]);
  	};
  
  	var push = function ba_push(buf) { endbuf(); curbuf = buf; if(curbuf.l == null) curbuf.l = curbuf.length; next(blksz); };
  
  	return ({ next:next, push:push, end:end, _bufs:bufs });
  }
  
  function write_record(ba, type, payload, length) {
  	var t = +XLSBRE[type], l;
  	if(isNaN(t)) return; // TODO: throw something here?
  	if(!length) length = XLSBRecordEnum[t].p || (payload||[]).length || 0;
  	l = 1 + (t >= 0x80 ? 1 : 0) + 1/* + length*/;
  	if(length >= 0x80) ++l; if(length >= 0x4000) ++l; if(length >= 0x200000) ++l;
  	var o = ba.next(l);
  	if(t <= 0x7F) o.write_shift(1, t);
  	else {
  		o.write_shift(1, (t & 0x7F) + 0x80);
  		o.write_shift(1, (t >> 7));
  	}
  	for(var i = 0; i != 4; ++i) {
  		if(length >= 0x80) { o.write_shift(1, (length & 0x7F)+0x80); length >>= 7; }
  		else { o.write_shift(1, length); break; }
  	}
  	if(length > 0 && is_buf(payload)) ba.push(payload);
  }
  /* XLS ranges enforced */
  function shift_cell_xls(cell, tgt, opts) {
  	var out = dup(cell);
  	if(tgt.s) {
  		if(out.cRel) out.c += tgt.s.c;
  		if(out.rRel) out.r += tgt.s.r;
  	} else {
  		if(out.cRel) out.c += tgt.c;
  		if(out.rRel) out.r += tgt.r;
  	}
  	if(!opts || opts.biff < 12) {
  		while(out.c >= 0x100) out.c -= 0x100;
  		while(out.r >= 0x10000) out.r -= 0x10000;
  	}
  	return out;
  }
  
  function shift_range_xls(cell, range, opts) {
  	var out = dup(cell);
  	out.s = shift_cell_xls(out.s, range.s, opts);
  	out.e = shift_cell_xls(out.e, range.s, opts);
  	return out;
  }
  
  function encode_cell_xls(c, biff) {
  	if(c.cRel && c.c < 0) { c = dup(c); c.c += (biff > 8) ? 0x4000 : 0x100; }
  	if(c.rRel && c.r < 0) { c = dup(c); c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
  	var s = encode_cell(c);
  	if(c.cRel === 0) s = fix_col(s);
  	if(c.rRel === 0) s = fix_row(s);
  	return s;
  }
  
  function encode_range_xls(r, opts) {
  	if(r.s.r == 0 && !r.s.rRel) {
  		if(r.e.r == (opts.biff >= 12 ? 0xFFFFF : (opts.biff >= 8 ? 0x10000 : 0x4000)) && !r.e.rRel) {
  			return (r.s.cRel ? "" : "$") + encode_col(r.s.c) + ":" + (r.e.cRel ? "" : "$") + encode_col(r.e.c);
  		}
  	}
  	if(r.s.c == 0 && !r.s.cRel) {
  		if(r.e.c == (opts.biff >= 12 ? 0xFFFF : 0xFF) && !r.e.cRel) {
  			return (r.s.rRel ? "" : "$") + encode_row(r.s.r) + ":" + (r.e.rRel ? "" : "$") + encode_row(r.e.r);
  		}
  	}
  	return encode_cell_xls(r.s, opts.biff) + ":" + encode_cell_xls(r.e, opts.biff);
  }
  var OFFCRYPTO = {};
  
  var make_offcrypto = function(O, _crypto) {
  	var crypto;
  	if(typeof _crypto !== 'undefined') crypto = _crypto;
  	else if(typeof require !== 'undefined') {
  		try { crypto = require('crypto'); }
  		catch(e) { crypto = null; }
  	}
  
  	O.rc4 = function(key, data) {
  		var S = new Array(256);
  		var c = 0, i = 0, j = 0, t = 0;
  		for(i = 0; i != 256; ++i) S[i] = i;
  		for(i = 0; i != 256; ++i) {
  			j = (j + S[i] + (key[i%key.length]).charCodeAt(0))&255;
  			t = S[i]; S[i] = S[j]; S[j] = t;
  		}
  		// $FlowIgnore
  		i = j = 0; var out = Buffer(data.length);
  		for(c = 0; c != data.length; ++c) {
  			i = (i + 1)&255;
  			j = (j + S[i])%256;
  			t = S[i]; S[i] = S[j]; S[j] = t;
  			out[c] = (data[c] ^ S[(S[i]+S[j])&255]);
  		}
  		return out;
  	};
  
  	O.md5 = function(hex) {
  		if(!crypto) throw new Error("Unsupported crypto");
  		return crypto.createHash('md5').update(hex).digest('hex');
  	};
  };
  /*global crypto:true */
  make_offcrypto(OFFCRYPTO, typeof crypto !== "undefined" ? crypto : undefined);
  
  function decode_row(rowstr) { return parseInt(unfix_row(rowstr),10) - 1; }
  function encode_row(row) { return "" + (row + 1); }
  function fix_row(cstr) { return cstr.replace(/([A-Z]|^)(\d+)$/,"$1$$$2"); }
  function unfix_row(cstr) { return cstr.replace(/\$(\d+)$/,"$1"); }
  
  function decode_col(colstr) { var c = unfix_col(colstr), d = 0, i = 0; for(; i !== c.length; ++i) d = 26*d + c.charCodeAt(i) - 64; return d - 1; }
  function encode_col(col) { var s=""; for(++col; col; col=Math.floor((col-1)/26)) s = String.fromCharCode(((col-1)%26) + 65) + s; return s; }
  function fix_col(cstr) { return cstr.replace(/^([A-Z])/,"$$$1"); }
  function unfix_col(cstr) { return cstr.replace(/^\$([A-Z])/,"$1"); }
  
  function split_cell(cstr) { return cstr.replace(/(\$?[A-Z]*)(\$?\d*)/,"$1,$2").split(","); }
  function decode_cell(cstr) { var splt = split_cell(cstr); return { c:decode_col(splt[0]), r:decode_row(splt[1]) }; }
  function encode_cell(cell) { return encode_col(cell.c) + encode_row(cell.r); }
  function decode_range(range) { var x =range.split(":").map(decode_cell); return {s:x[0],e:x[x.length-1]}; }
  function encode_range(cs,ce) {
  	if(typeof ce === 'undefined' || typeof ce === 'number') {
  return encode_range(cs.s, cs.e);
  	}
  if(typeof cs !== 'string') cs = encode_cell((cs));
  	if(typeof ce !== 'string') ce = encode_cell((ce));
  return cs == ce ? cs : cs + ":" + ce;
  }
  
  function safe_decode_range(range) {
  	var o = {s:{c:0,r:0},e:{c:0,r:0}};
  	var idx = 0, i = 0, cc = 0;
  	var len = range.length;
  	for(idx = 0; i < len; ++i) {
  		if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
  		idx = 26*idx + cc;
  	}
  	o.s.c = --idx;
  
  	for(idx = 0; i < len; ++i) {
  		if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
  		idx = 10*idx + cc;
  	}
  	o.s.r = --idx;
  
  	if(i === len || range.charCodeAt(++i) === 58) { o.e.c=o.s.c; o.e.r=o.s.r; return o; }
  
  	for(idx = 0; i != len; ++i) {
  		if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
  		idx = 26*idx + cc;
  	}
  	o.e.c = --idx;
  
  	for(idx = 0; i != len; ++i) {
  		if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
  		idx = 10*idx + cc;
  	}
  	o.e.r = --idx;
  	return o;
  }
  
  function safe_format_cell(cell, v) {
  	var q = (cell.t == 'd' && v instanceof Date);
  	if(cell.z != null) try { return (cell.w = SSF.format(cell.z, q ? datenum(v) : v)); } catch(e) { }
  	try { return (cell.w = SSF.format((cell.XF||{}).numFmtId||(q ? 14 : 0),  q ? datenum(v) : v)); } catch(e) { return ''+v; }
  }
  
  function format_cell(cell, v, o) {
  	if(cell == null || cell.t == null || cell.t == 'z') return "";
  	if(cell.w !== undefined) return cell.w;
  	if(cell.t == 'd' && !cell.z && o && o.dateNF) cell.z = o.dateNF;
  	if(v == undefined) return safe_format_cell(cell, cell.v);
  	return safe_format_cell(cell, v);
  }
  
  function sheet_to_workbook(sheet, opts) {
  	var n = opts && opts.sheet ? opts.sheet : "Sheet1";
  	var sheets = {}; sheets[n] = sheet;
  	return { SheetNames: [n], Sheets: sheets };
  }
  
  function sheet_add_aoa(_ws, data, opts) {
  	var o = opts || {};
  	var dense = _ws ? Array.isArray(_ws) : o.dense;
  	if(DENSE != null && dense == null) dense = DENSE;
  	var ws = _ws || (dense ? ([]) : ({}));
  	var _R = 0, _C = 0;
  	if(ws && o.origin != null) {
  		if(typeof o.origin == 'number') _R = o.origin;
  		else {
  			var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
  			_R = _origin.r; _C = _origin.c;
  		}
  	}
  	var range = ({s: {c:10000000, r:10000000}, e: {c:0, r:0}});
  	if(ws['!ref']) {
  		var _range = safe_decode_range(ws['!ref']);
  		range.s.c = _range.s.c;
  		range.s.r = _range.s.r;
  		range.e.c = Math.max(range.e.c, _range.e.c);
  		range.e.r = Math.max(range.e.r, _range.e.r);
  		if(_R == -1) range.e.r = _R = _range.e.r + 1;
  	}
  	for(var R = 0; R != data.length; ++R) {
  		if(!data[R]) continue;
  		if(!Array.isArray(data[R])) throw new Error("aoa_to_sheet expects an array of arrays");
  		for(var C = 0; C != data[R].length; ++C) {
  			if(typeof data[R][C] === 'undefined') continue;
  			var cell = ({v: data[R][C] });
  			var __R = _R + R, __C = _C + C;
  			if(range.s.r > __R) range.s.r = __R;
  			if(range.s.c > __C) range.s.c = __C;
  			if(range.e.r < __R) range.e.r = __R;
  			if(range.e.c < __C) range.e.c = __C;
  			if(data[R][C] && typeof data[R][C] === 'object' && !Array.isArray(data[R][C]) && !(data[R][C] instanceof Date)) cell = data[R][C];
  			else {
  				if(Array.isArray(cell.v)) { cell.f = data[R][C][1]; cell.v = cell.v[0]; }
  				if(cell.v === null) { if(cell.f) cell.t = 'n'; else if(!o.cellStubs) continue; else cell.t = 'z'; }
  				else if(typeof cell.v === 'number') cell.t = 'n';
  				else if(typeof cell.v === 'boolean') cell.t = 'b';
  				else if(cell.v instanceof Date) {
  					cell.z = o.dateNF || SSF._table[14];
  					if(o.cellDates) { cell.t = 'd'; cell.w = SSF.format(cell.z, datenum(cell.v)); }
  					else { cell.t = 'n'; cell.v = datenum(cell.v); cell.w = SSF.format(cell.z, cell.v); }
  				}
  				else cell.t = 's';
  			}
  			if(dense) {
  				if(!ws[__R]) ws[__R] = [];
  				ws[__R][__C] = cell;
  			} else {
  				var cell_ref = encode_cell(({c:__C,r:__R}));
  				ws[cell_ref] = cell;
  			}
  		}
  	}
  	if(range.s.c < 10000000) ws['!ref'] = encode_range(range);
  	return ws;
  }
  function aoa_to_sheet(data, opts) { return sheet_add_aoa(null, data, opts); }
  
  function write_UInt32LE(x, o) {
  	if(!o) o = new_buf(4);
  	o.write_shift(4, x);
  	return o;
  }
  
  /* [MS-XLSB] 2.5.168 */
  function parse_XLWideString(data) {
  	var cchCharacters = data.read_shift(4);
  	return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, 'dbcs');
  }
  function write_XLWideString(data, o) {
  	var _null = false; if(o == null) { _null = true; o = new_buf(4+2*data.length); }
  	o.write_shift(4, data.length);
  	if(data.length > 0) o.write_shift(0, data, 'dbcs');
  	return _null ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.5.143 */
  function parse_StrRun(data) {
  	return { ich: data.read_shift(2), ifnt: data.read_shift(2) };
  }
  function write_StrRun(run, o) {
  	if(!o) o = new_buf(4);
  	o.write_shift(2, run.ich || 0);
  	o.write_shift(2, run.ifnt || 0);
  	return o;
  }
  
  /* [MS-XLSB] 2.5.121 */
  function parse_RichStr(data, length) {
  	var start = data.l;
  	var flags = data.read_shift(1);
  	var str = parse_XLWideString(data);
  	var rgsStrRun = [];
  	var z = ({ t: str, h: str });
  	if((flags & 1) !== 0) { /* fRichStr */
  		/* TODO: formatted string */
  		var dwSizeStrRun = data.read_shift(4);
  		for(var i = 0; i != dwSizeStrRun; ++i) rgsStrRun.push(parse_StrRun(data));
  		z.r = rgsStrRun;
  	}
  	else z.r = [{ich:0, ifnt:0}];
  	//if((flags & 2) !== 0) { /* fExtStr */
  	//	/* TODO: phonetic string */
  	//}
  	data.l = start + length;
  	return z;
  }
  function write_RichStr(str, o) {
  	/* TODO: formatted string */
  	var _null = false; if(o == null) { _null = true; o = new_buf(15+4*str.t.length); }
  	o.write_shift(1,0);
  	write_XLWideString(str.t, o);
  	return _null ? o.slice(0, o.l) : o;
  }
  /* [MS-XLSB] 2.4.328 BrtCommentText (RichStr w/1 run) */
  var parse_BrtCommentText = parse_RichStr;
  function write_BrtCommentText(str, o) {
  	/* TODO: formatted string */
  	var _null = false; if(o == null) { _null = true; o = new_buf(23+4*str.t.length); }
  	o.write_shift(1,1);
  	write_XLWideString(str.t, o);
  	o.write_shift(4,1);
  	write_StrRun({ich:0,ifnt:0}, o);
  	return _null ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.5.9 */
  function parse_XLSBCell(data) {
  	var col = data.read_shift(4);
  	var iStyleRef = data.read_shift(2);
  	iStyleRef += data.read_shift(1) <<16;
  	data.l++; //var fPhShow = data.read_shift(1);
  	return { c:col, iStyleRef: iStyleRef };
  }
  function write_XLSBCell(cell, o) {
  	if(o == null) o = new_buf(8);
  	o.write_shift(-4, cell.c);
  	o.write_shift(3, cell.iStyleRef || cell.s);
  	o.write_shift(1, 0); /* fPhShow */
  	return o;
  }
  
  
  /* [MS-XLSB] 2.5.21 */
  var parse_XLSBCodeName = parse_XLWideString;
  var write_XLSBCodeName = write_XLWideString;
  
  /* [MS-XLSB] 2.5.166 */
  function parse_XLNullableWideString(data) {
  	var cchCharacters = data.read_shift(4);
  	return cchCharacters === 0 || cchCharacters === 0xFFFFFFFF ? "" : data.read_shift(cchCharacters, 'dbcs');
  }
  function write_XLNullableWideString(data, o) {
  	var _null = false; if(o == null) { _null = true; o = new_buf(127); }
  	o.write_shift(4, data.length > 0 ? data.length : 0xFFFFFFFF);
  	if(data.length > 0) o.write_shift(0, data, 'dbcs');
  	return _null ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.5.165 */
  var parse_XLNameWideString = parse_XLWideString;
  //var write_XLNameWideString = write_XLWideString;
  
  /* [MS-XLSB] 2.5.114 */
  var parse_RelID = parse_XLNullableWideString;
  var write_RelID = write_XLNullableWideString;
  
  
  /* [MS-XLS] 2.5.217 ; [MS-XLSB] 2.5.122 */
  function parse_RkNumber(data) {
  	var b = data.slice(data.l, data.l+4);
  	var fX100 = (b[0] & 1), fInt = (b[0] & 2);
  	data.l+=4;
  	b[0] &= 0xFC; // b[0] &= ~3;
  	var RK = fInt === 0 ? __double([0,0,0,0,b[0],b[1],b[2],b[3]],0) : __readInt32LE(b,0)>>2;
  	return fX100 ? (RK/100) : RK;
  }
  function write_RkNumber(data, o) {
  	if(o == null) o = new_buf(4);
  	var fX100 = 0, fInt = 0, d100 = data * 100;
  	if((data == (data | 0)) && (data >= -(1<<29)) && (data < (1 << 29))) { fInt = 1; }
  	else if((d100 == (d100 | 0)) && (d100 >= -(1<<29)) && (d100 < (1 << 29))) { fInt = 1; fX100 = 1; }
  	if(fInt) o.write_shift(-4, ((fX100 ? d100 : data) << 2) + (fX100 + 2));
  	else throw new Error("unsupported RkNumber " + data); // TODO
  }
  
  
  /* [MS-XLSB] 2.5.117 RfX */
  function parse_RfX(data ) {
  	var cell = ({s: {}, e: {}});
  	cell.s.r = data.read_shift(4);
  	cell.e.r = data.read_shift(4);
  	cell.s.c = data.read_shift(4);
  	cell.e.c = data.read_shift(4);
  	return cell;
  }
  function write_RfX(r, o) {
  	if(!o) o = new_buf(16);
  	o.write_shift(4, r.s.r);
  	o.write_shift(4, r.e.r);
  	o.write_shift(4, r.s.c);
  	o.write_shift(4, r.e.c);
  	return o;
  }
  
  /* [MS-XLSB] 2.5.153 UncheckedRfX */
  var parse_UncheckedRfX = parse_RfX;
  var write_UncheckedRfX = write_RfX;
  
  /* [MS-XLS] 2.5.342 ; [MS-XLSB] 2.5.171 */
  /* TODO: error checking, NaN and Infinity values are not valid Xnum */
  function parse_Xnum(data) { return data.read_shift(8, 'f'); }
  function write_Xnum(data, o) { return (o || new_buf(8)).write_shift(8, data, 'f'); }
  
  /* [MS-XLSB] 2.5.97.2 */
  var BErr = {
  0x00: "#NULL!",
  0x07: "#DIV/0!",
  0x0F: "#VALUE!",
  0x17: "#REF!",
  0x1D: "#NAME?",
  0x24: "#NUM!",
  0x2A: "#N/A",
  0x2B: "#GETTING_DATA",
  0xFF: "#WTF?"
  };
  var RBErr = evert_num(BErr);
  
  /* [MS-XLSB] 2.4.324 BrtColor */
  function parse_BrtColor(data) {
  	var out = {};
  	var d = data.read_shift(1);
  
  	//var fValidRGB = d & 1;
  	var xColorType = d >>> 1;
  
  	var index = data.read_shift(1);
  	var nTS = data.read_shift(2, 'i');
  	var bR = data.read_shift(1);
  	var bG = data.read_shift(1);
  	var bB = data.read_shift(1);
  	data.l++; //var bAlpha = data.read_shift(1);
  
  	switch(xColorType) {
  		case 0: out.auto = 1; break;
  		case 1:
  			out.index = index;
  			var icv = XLSIcv[index];
  			/* automatic pseudo index 81 */
  			if(icv) out.rgb = rgb2Hex(icv);
  			break;
  		case 2:
  			/* if(!fValidRGB) throw new Error("invalid"); */
  			out.rgb = rgb2Hex([bR, bG, bB]);
  			break;
  		case 3: out.theme = index; break;
  	}
  	if(nTS != 0) out.tint = nTS > 0 ? nTS / 32767 : nTS / 32768;
  
  	return out;
  }
  function write_BrtColor(color, o) {
  	if(!o) o = new_buf(8);
  	if(!color||color.auto) { o.write_shift(4, 0); o.write_shift(4, 0); return o; }
  	if(color.index) {
  		o.write_shift(1, 0x02);
  		o.write_shift(1, color.index);
  	} else if(color.theme) {
  		o.write_shift(1, 0x06);
  		o.write_shift(1, color.theme);
  	} else {
  		o.write_shift(1, 0x05);
  		o.write_shift(1, 0);
  	}
  	var nTS = color.tint || 0;
  	if(nTS > 0) nTS *= 32767;
  	else if(nTS < 0) nTS *= 32768;
  	o.write_shift(2, nTS);
  	if(!color.rgb) {
  		o.write_shift(2, 0);
  		o.write_shift(1, 0);
  		o.write_shift(1, 0);
  	} else {
  		var rgb = (color.rgb || 'FFFFFF');
  		o.write_shift(1, parseInt(rgb.slice(0,2),16));
  		o.write_shift(1, parseInt(rgb.slice(2,4),16));
  		o.write_shift(1, parseInt(rgb.slice(4,6),16));
  		o.write_shift(1, 0xFF);
  	}
  	return o;
  }
  
  /* [MS-XLSB] 2.5.52 */
  function parse_FontFlags(data) {
  	var d = data.read_shift(1);
  	data.l++;
  	var out = {
  		/* fBold: d & 0x01 */
  		fItalic: d & 0x02,
  		/* fUnderline: d & 0x04 */
  		fStrikeout: d & 0x08,
  		fOutline: d & 0x10,
  		fShadow: d & 0x20,
  		fCondense: d & 0x40,
  		fExtend: d & 0x80
  	};
  	return out;
  }
  function write_FontFlags(font, o) {
  	if(!o) o = new_buf(2);
  	var grbit =
  		(font.italic   ? 0x02 : 0) |
  		(font.strike   ? 0x08 : 0) |
  		(font.outline  ? 0x10 : 0) |
  		(font.shadow   ? 0x20 : 0) |
  		(font.condense ? 0x40 : 0) |
  		(font.extend   ? 0x80 : 0);
  	o.write_shift(1, grbit);
  	o.write_shift(1, 0);
  	return o;
  }
  
  /* [MS-OLEDS] 2.3.1 and 2.3.2 */
  function parse_ClipboardFormatOrString(o, w) {
  	// $FlowIgnore
  	var ClipFmt = {2:"BITMAP",3:"METAFILEPICT",8:"DIB",14:"ENHMETAFILE"};
  	var m = o.read_shift(4);
  	switch(m) {
  		case 0x00000000: return "";
  		case 0xffffffff: case 0xfffffffe: return ClipFmt[o.read_shift(4)]||"";
  	}
  	if(m > 0x190) throw new Error("Unsupported Clipboard: " + m.toString(16));
  	o.l -= 4;
  	return o.read_shift(0, w == 1 ? "lpstr" : "lpwstr");
  }
  function parse_ClipboardFormatOrAnsiString(o) { return parse_ClipboardFormatOrString(o, 1); }
  function parse_ClipboardFormatOrUnicodeString(o) { return parse_ClipboardFormatOrString(o, 2); }
  
  /* [MS-OLEPS] 2.2 PropertyType */
  //var VT_EMPTY    = 0x0000;
  //var VT_NULL     = 0x0001;
  var VT_I2       = 0x0002;
  var VT_I4       = 0x0003;
  //var VT_R4       = 0x0004;
  //var VT_R8       = 0x0005;
  //var VT_CY       = 0x0006;
  //var VT_DATE     = 0x0007;
  //var VT_BSTR     = 0x0008;
  //var VT_ERROR    = 0x000A;
  var VT_BOOL     = 0x000B;
  var VT_VARIANT  = 0x000C;
  //var VT_DECIMAL  = 0x000E;
  //var VT_I1       = 0x0010;
  //var VT_UI1      = 0x0011;
  //var VT_UI2      = 0x0012;
  var VT_UI4      = 0x0013;
  //var VT_I8       = 0x0014;
  //var VT_UI8      = 0x0015;
  //var VT_INT      = 0x0016;
  //var VT_UINT     = 0x0017;
  var VT_LPSTR    = 0x001E;
  //var VT_LPWSTR   = 0x001F;
  var VT_FILETIME = 0x0040;
  var VT_BLOB     = 0x0041;
  //var VT_STREAM   = 0x0042;
  //var VT_STORAGE  = 0x0043;
  //var VT_STREAMED_Object  = 0x0044;
  //var VT_STORED_Object    = 0x0045;
  //var VT_BLOB_Object      = 0x0046;
  var VT_CF       = 0x0047;
  //var VT_CLSID    = 0x0048;
  //var VT_VERSIONED_STREAM = 0x0049;
  var VT_VECTOR   = 0x1000;
  //var VT_ARRAY    = 0x2000;
  
  var VT_STRING   = 0x0050; // 2.3.3.1.11 VtString
  var VT_USTR     = 0x0051; // 2.3.3.1.12 VtUnalignedString
  var VT_CUSTOM   = [VT_STRING, VT_USTR];
  
  /* [MS-OSHARED] 2.3.3.2.2.1 Document Summary Information PIDDSI */
  var DocSummaryPIDDSI = {
  0x01: { n: 'CodePage', t: VT_I2 },
  0x02: { n: 'Category', t: VT_STRING },
  0x03: { n: 'PresentationFormat', t: VT_STRING },
  0x04: { n: 'ByteCount', t: VT_I4 },
  0x05: { n: 'LineCount', t: VT_I4 },
  0x06: { n: 'ParagraphCount', t: VT_I4 },
  0x07: { n: 'SlideCount', t: VT_I4 },
  0x08: { n: 'NoteCount', t: VT_I4 },
  0x09: { n: 'HiddenCount', t: VT_I4 },
  0x0a: { n: 'MultimediaClipCount', t: VT_I4 },
  0x0b: { n: 'ScaleCrop', t: VT_BOOL },
  0x0c: { n: 'HeadingPairs', t: VT_VECTOR | VT_VARIANT },
  0x0d: { n: 'TitlesOfParts', t: VT_VECTOR | VT_LPSTR },
  0x0e: { n: 'Manager', t: VT_STRING },
  0x0f: { n: 'Company', t: VT_STRING },
  0x10: { n: 'LinksUpToDate', t: VT_BOOL },
  0x11: { n: 'CharacterCount', t: VT_I4 },
  0x13: { n: 'SharedDoc', t: VT_BOOL },
  0x16: { n: 'HyperlinksChanged', t: VT_BOOL },
  0x17: { n: 'AppVersion', t: VT_I4, p: 'version' },
  0x18: { n: 'DigSig', t: VT_BLOB },
  0x1A: { n: 'ContentType', t: VT_STRING },
  0x1B: { n: 'ContentStatus', t: VT_STRING },
  0x1C: { n: 'Language', t: VT_STRING },
  0x1D: { n: 'Version', t: VT_STRING },
  0xFF: {}
  };
  
  /* [MS-OSHARED] 2.3.3.2.1.1 Summary Information Property Set PIDSI */
  var SummaryPIDSI = {
  0x01: { n: 'CodePage', t: VT_I2 },
  0x02: { n: 'Title', t: VT_STRING },
  0x03: { n: 'Subject', t: VT_STRING },
  0x04: { n: 'Author', t: VT_STRING },
  0x05: { n: 'Keywords', t: VT_STRING },
  0x06: { n: 'Comments', t: VT_STRING },
  0x07: { n: 'Template', t: VT_STRING },
  0x08: { n: 'LastAuthor', t: VT_STRING },
  0x09: { n: 'RevNumber', t: VT_STRING },
  0x0A: { n: 'EditTime', t: VT_FILETIME },
  0x0B: { n: 'LastPrinted', t: VT_FILETIME },
  0x0C: { n: 'CreatedDate', t: VT_FILETIME },
  0x0D: { n: 'ModifiedDate', t: VT_FILETIME },
  0x0E: { n: 'PageCount', t: VT_I4 },
  0x0F: { n: 'WordCount', t: VT_I4 },
  0x10: { n: 'CharCount', t: VT_I4 },
  0x11: { n: 'Thumbnail', t: VT_CF },
  0x12: { n: 'Application', t: VT_STRING },
  0x13: { n: 'DocSecurity', t: VT_I4 },
  0xFF: {}
  };
  
  /* [MS-OLEPS] 2.18 */
  var SpecialProperties = {
  0x80000000: { n: 'Locale', t: VT_UI4 },
  0x80000003: { n: 'Behavior', t: VT_UI4 },
  0x72627262: {}
  };
  
  (function() {
  	for(var y in SpecialProperties) if(SpecialProperties.hasOwnProperty(y))
  	DocSummaryPIDDSI[y] = SummaryPIDSI[y] = SpecialProperties[y];
  })();
  
  var DocSummaryRE = evert_key(DocSummaryPIDDSI, "n");
  var SummaryRE = evert_key(SummaryPIDSI, "n");
  
  /* [MS-XLS] 2.4.63 Country/Region codes */
  var CountryEnum = {
  0x0001: "US", // United States
  0x0002: "CA", // Canada
  0x0003: "", // Latin America (except Brazil)
  0x0007: "RU", // Russia
  0x0014: "EG", // Egypt
  0x001E: "GR", // Greece
  0x001F: "NL", // Netherlands
  0x0020: "BE", // Belgium
  0x0021: "FR", // France
  0x0022: "ES", // Spain
  0x0024: "HU", // Hungary
  0x0027: "IT", // Italy
  0x0029: "CH", // Switzerland
  0x002B: "AT", // Austria
  0x002C: "GB", // United Kingdom
  0x002D: "DK", // Denmark
  0x002E: "SE", // Sweden
  0x002F: "NO", // Norway
  0x0030: "PL", // Poland
  0x0031: "DE", // Germany
  0x0034: "MX", // Mexico
  0x0037: "BR", // Brazil
  0x003d: "AU", // Australia
  0x0040: "NZ", // New Zealand
  0x0042: "TH", // Thailand
  0x0051: "JP", // Japan
  0x0052: "KR", // Korea
  0x0054: "VN", // Viet Nam
  0x0056: "CN", // China
  0x005A: "TR", // Turkey
  0x0069: "JS", // Ramastan
  0x00D5: "DZ", // Algeria
  0x00D8: "MA", // Morocco
  0x00DA: "LY", // Libya
  0x015F: "PT", // Portugal
  0x0162: "IS", // Iceland
  0x0166: "FI", // Finland
  0x01A4: "CZ", // Czech Republic
  0x0376: "TW", // Taiwan
  0x03C1: "LB", // Lebanon
  0x03C2: "JO", // Jordan
  0x03C3: "SY", // Syria
  0x03C4: "IQ", // Iraq
  0x03C5: "KW", // Kuwait
  0x03C6: "SA", // Saudi Arabia
  0x03CB: "AE", // United Arab Emirates
  0x03CC: "IL", // Israel
  0x03CE: "QA", // Qatar
  0x03D5: "IR", // Iran
  0xFFFF: "US"  // United States
  };
  
  /* [MS-XLS] 2.5.127 */
  var XLSFillPattern = [
  	null,
  	'solid',
  	'mediumGray',
  	'darkGray',
  	'lightGray',
  	'darkHorizontal',
  	'darkVertical',
  	'darkDown',
  	'darkUp',
  	'darkGrid',
  	'darkTrellis',
  	'lightHorizontal',
  	'lightVertical',
  	'lightDown',
  	'lightUp',
  	'lightGrid',
  	'lightTrellis',
  	'gray125',
  	'gray0625'
  ];
  
  function rgbify(arr) { return arr.map(function(x) { return [(x>>16)&255,(x>>8)&255,x&255]; }); }
  
  /* [MS-XLS] 2.5.161 */
  /* [MS-XLSB] 2.5.75 Icv */
  var XLSIcv = rgbify([
  	/* Color Constants */
  	0x000000,
  	0xFFFFFF,
  	0xFF0000,
  	0x00FF00,
  	0x0000FF,
  	0xFFFF00,
  	0xFF00FF,
  	0x00FFFF,
  
  	/* Overridable Defaults */
  	0x000000,
  	0xFFFFFF,
  	0xFF0000,
  	0x00FF00,
  	0x0000FF,
  	0xFFFF00,
  	0xFF00FF,
  	0x00FFFF,
  
  	0x800000,
  	0x008000,
  	0x000080,
  	0x808000,
  	0x800080,
  	0x008080,
  	0xC0C0C0,
  	0x808080,
  	0x9999FF,
  	0x993366,
  	0xFFFFCC,
  	0xCCFFFF,
  	0x660066,
  	0xFF8080,
  	0x0066CC,
  	0xCCCCFF,
  
  	0x000080,
  	0xFF00FF,
  	0xFFFF00,
  	0x00FFFF,
  	0x800080,
  	0x800000,
  	0x008080,
  	0x0000FF,
  	0x00CCFF,
  	0xCCFFFF,
  	0xCCFFCC,
  	0xFFFF99,
  	0x99CCFF,
  	0xFF99CC,
  	0xCC99FF,
  	0xFFCC99,
  
  	0x3366FF,
  	0x33CCCC,
  	0x99CC00,
  	0xFFCC00,
  	0xFF9900,
  	0xFF6600,
  	0x666699,
  	0x969696,
  	0x003366,
  	0x339966,
  	0x003300,
  	0x333300,
  	0x993300,
  	0x993366,
  	0x333399,
  	0x333333,
  
  	/* Other entries to appease BIFF8/12 */
  	0xFFFFFF, /* 0x40 icvForeground ?? */
  	0x000000, /* 0x41 icvBackground ?? */
  	0x000000, /* 0x42 icvFrame ?? */
  	0x000000, /* 0x43 icv3D ?? */
  	0x000000, /* 0x44 icv3DText ?? */
  	0x000000, /* 0x45 icv3DHilite ?? */
  	0x000000, /* 0x46 icv3DShadow ?? */
  	0x000000, /* 0x47 icvHilite ?? */
  	0x000000, /* 0x48 icvCtlText ?? */
  	0x000000, /* 0x49 icvCtlScrl ?? */
  	0x000000, /* 0x4A icvCtlInv ?? */
  	0x000000, /* 0x4B icvCtlBody ?? */
  	0x000000, /* 0x4C icvCtlFrame ?? */
  	0x000000, /* 0x4D icvCtlFore ?? */
  	0x000000, /* 0x4E icvCtlBack ?? */
  	0x000000, /* 0x4F icvCtlNeutral */
  	0x000000, /* 0x50 icvInfoBk ?? */
  	0x000000 /* 0x51 icvInfoText ?? */
  ]);
  
  /* Parts enumerated in OPC spec, MS-XLSB and MS-XLSX */
  /* 12.3 Part Summary <SpreadsheetML> */
  /* 14.2 Part Summary <DrawingML> */
  /* [MS-XLSX] 2.1 Part Enumerations ; [MS-XLSB] 2.1.7 Part Enumeration */
  var ct2type/*{[string]:string}*/ = ({
  	/* Workbook */
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml": "workbooks",
  
  	/* Worksheet */
  	"application/vnd.ms-excel.binIndexWs": "TODO", /* Binary Index */
  
  	/* Macrosheet */
  	"application/vnd.ms-excel.intlmacrosheet": "TODO",
  	"application/vnd.ms-excel.binIndexMs": "TODO", /* Binary Index */
  
  	/* File Properties */
  	"application/vnd.openxmlformats-package.core-properties+xml": "coreprops",
  	"application/vnd.openxmlformats-officedocument.custom-properties+xml": "custprops",
  	"application/vnd.openxmlformats-officedocument.extended-properties+xml": "extprops",
  
  	/* Custom Data Properties */
  	"application/vnd.openxmlformats-officedocument.customXmlProperties+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.customProperty": "TODO",
  
  	/* PivotTable */
  	"application/vnd.ms-excel.pivotTable": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotTable+xml": "TODO",
  
  	/* Chart Colors */
  	"application/vnd.ms-office.chartcolorstyle+xml": "TODO",
  
  	/* Chart Style */
  	"application/vnd.ms-office.chartstyle+xml": "TODO",
  
  	/* Calculation Chain */
  	"application/vnd.ms-excel.calcChain": "calcchains",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml": "calcchains",
  
  	/* Printer Settings */
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.printerSettings": "TODO",
  
  	/* ActiveX */
  	"application/vnd.ms-office.activeX": "TODO",
  	"application/vnd.ms-office.activeX+xml": "TODO",
  
  	/* Custom Toolbars */
  	"application/vnd.ms-excel.attachedToolbars": "TODO",
  
  	/* External Data Connections */
  	"application/vnd.ms-excel.connections": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.connections+xml": "TODO",
  
  	/* External Links */
  	"application/vnd.ms-excel.externalLink": "links",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.externalLink+xml": "links",
  
  	/* Metadata */
  	"application/vnd.ms-excel.sheetMetadata": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml": "TODO",
  
  	/* PivotCache */
  	"application/vnd.ms-excel.pivotCacheDefinition": "TODO",
  	"application/vnd.ms-excel.pivotCacheRecords": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheDefinition+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheRecords+xml": "TODO",
  
  	/* Query Table */
  	"application/vnd.ms-excel.queryTable": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.queryTable+xml": "TODO",
  
  	/* Shared Workbook */
  	"application/vnd.ms-excel.userNames": "TODO",
  	"application/vnd.ms-excel.revisionHeaders": "TODO",
  	"application/vnd.ms-excel.revisionLog": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionHeaders+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionLog+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.userNames+xml": "TODO",
  
  	/* Single Cell Table */
  	"application/vnd.ms-excel.tableSingleCells": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.tableSingleCells+xml": "TODO",
  
  	/* Slicer */
  	"application/vnd.ms-excel.slicer": "TODO",
  	"application/vnd.ms-excel.slicerCache": "TODO",
  	"application/vnd.ms-excel.slicer+xml": "TODO",
  	"application/vnd.ms-excel.slicerCache+xml": "TODO",
  
  	/* Sort Map */
  	"application/vnd.ms-excel.wsSortMap": "TODO",
  
  	/* Table */
  	"application/vnd.ms-excel.table": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.table+xml": "TODO",
  
  	/* Themes */
  	"application/vnd.openxmlformats-officedocument.theme+xml": "themes",
  
  	/* Theme Override */
  	"application/vnd.openxmlformats-officedocument.themeOverride+xml": "TODO",
  
  	/* Timeline */
  	"application/vnd.ms-excel.Timeline+xml": "TODO", /* verify */
  	"application/vnd.ms-excel.TimelineCache+xml": "TODO", /* verify */
  
  	/* VBA */
  	"application/vnd.ms-office.vbaProject": "vba",
  	"application/vnd.ms-office.vbaProjectSignature": "vba",
  
  	/* Volatile Dependencies */
  	"application/vnd.ms-office.volatileDependencies": "TODO",
  	"application/vnd.openxmlformats-officedocument.spreadsheetml.volatileDependencies+xml": "TODO",
  
  	/* Control Properties */
  	"application/vnd.ms-excel.controlproperties+xml": "TODO",
  
  	/* Data Model */
  	"application/vnd.openxmlformats-officedocument.model+data": "TODO",
  
  	/* Survey */
  	"application/vnd.ms-excel.Survey+xml": "TODO",
  
  	/* Drawing */
  	"application/vnd.openxmlformats-officedocument.drawing+xml": "drawings",
  	"application/vnd.openxmlformats-officedocument.drawingml.chart+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.drawingml.chartshapes+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.drawingml.diagramColors+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.drawingml.diagramData+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.drawingml.diagramLayout+xml": "TODO",
  	"application/vnd.openxmlformats-officedocument.drawingml.diagramStyle+xml": "TODO",
  
  	/* VML */
  	"application/vnd.openxmlformats-officedocument.vmlDrawing": "TODO",
  
  	"application/vnd.openxmlformats-package.relationships+xml": "rels",
  	"application/vnd.openxmlformats-officedocument.oleObject": "TODO",
  
  	/* Image */
  	"image/png": "TODO",
  
  	"sheet": "js"
  });
  
  var CT_LIST = (function(){
  	var o = {
  		workbooks: {
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
  			xlsm: "application/vnd.ms-excel.sheet.macroEnabled.main+xml",
  			xlsb: "application/vnd.ms-excel.sheet.binary.macroEnabled.main",
  			xlam: "application/vnd.ms-excel.addin.macroEnabled.main+xml",
  			xltx: "application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml"
  		},
  		strs: { /* Shared Strings */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
  			xlsb: "application/vnd.ms-excel.sharedStrings"
  		},
  		comments: { /* Comments */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
  			xlsb: "application/vnd.ms-excel.comments"
  		},
  		sheets: { /* Worksheet */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
  			xlsb: "application/vnd.ms-excel.worksheet"
  		},
  		charts: { /* Chartsheet */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
  			xlsb: "application/vnd.ms-excel.chartsheet"
  		},
  		dialogs: { /* Dialogsheet */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
  			xlsb: "application/vnd.ms-excel.dialogsheet"
  		},
  		macros: { /* Macrosheet (Excel 4.0 Macros) */
  			xlsx: "application/vnd.ms-excel.macrosheet+xml",
  			xlsb: "application/vnd.ms-excel.macrosheet"
  		},
  		styles: { /* Styles */
  			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
  			xlsb: "application/vnd.ms-excel.styles"
  		}
  	};
  	keys(o).forEach(function(k) { ["xlsm", "xlam"].forEach(function(v) { if(!o[k][v]) o[k][v] = o[k].xlsx; }); });
  	keys(o).forEach(function(k){ keys(o[k]).forEach(function(v) { ct2type[o[k][v]] = k; }); });
  	return o;
  })();
  
  var type2ct/*{[string]:Array<string>}*/ = evert_arr(ct2type);
  
  XMLNS.CT = 'http://schemas.openxmlformats.org/package/2006/content-types';
  
  function new_ct() {
  	return ({
  		workbooks:[], sheets:[], charts:[], dialogs:[], macros:[],
  		rels:[], strs:[], comments:[], links:[],
  		coreprops:[], extprops:[], custprops:[], themes:[], styles:[],
  		calcchains:[], vba: [], drawings: [],
  		TODO:[], xmlns: "" });
  }
  
  function parse_ct(data) {
  	var ct = new_ct();
  	if(!data || !data.match) return ct;
  	var ctext = {};
  	(data.match(tagregex)||[]).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(y[0].replace(nsregex,"<")) {
  			case '<?xml': break;
  			case '<Types': ct.xmlns = y['xmlns' + (y[0].match(/<(\w+):/)||["",""])[1] ]; break;
  			case '<Default': ctext[y.Extension] = y.ContentType; break;
  			case '<Override':
  				if(ct[ct2type[y.ContentType]] !== undefined) ct[ct2type[y.ContentType]].push(y.PartName);
  				break;
  		}
  	});
  	if(ct.xmlns !== XMLNS.CT) throw new Error("Unknown Namespace: " + ct.xmlns);
  	ct.calcchain = ct.calcchains.length > 0 ? ct.calcchains[0] : "";
  	ct.sst = ct.strs.length > 0 ? ct.strs[0] : "";
  	ct.style = ct.styles.length > 0 ? ct.styles[0] : "";
  	ct.defaults = ctext;
  	delete ct.calcchains;
  	return ct;
  }
  
  var CTYPE_XML_ROOT = writextag('Types', null, {
  	'xmlns': XMLNS.CT,
  	'xmlns:xsd': XMLNS.xsd,
  	'xmlns:xsi': XMLNS.xsi
  });
  
  var CTYPE_DEFAULTS = [
  	['xml', 'application/xml'],
  	['bin', 'application/vnd.ms-excel.sheet.binary.macroEnabled.main'],
  	['vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'],
  	/* from test files */
  	['bmp', 'image/bmp'],
  	['png', 'image/png'],
  	['gif', 'image/gif'],
  	['emf', 'image/x-emf'],
  	['wmf', 'image/x-wmf'],
  	['jpg', 'image/jpeg'], ['jpeg', 'image/jpeg'],
  	['tif', 'image/tiff'], ['tiff', 'image/tiff'],
  	['pdf', 'application/pdf'],
  	['rels', type2ct.rels[0]]
  ].map(function(x) {
  	return writextag('Default', null, {'Extension':x[0], 'ContentType': x[1]});
  });
  
  function write_ct(ct, opts) {
  	var o = [], v;
  	o[o.length] = (XML_HEADER);
  	o[o.length] = (CTYPE_XML_ROOT);
  	o = o.concat(CTYPE_DEFAULTS);
  	var f1 = function(w) {
  		if(ct[w] && ct[w].length > 0) {
  			v = ct[w][0];
  			o[o.length] = (writextag('Override', null, {
  				'PartName': (v[0] == '/' ? "":"/") + v,
  				'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
  			}));
  		}
  	};
  	var f2 = function(w) {
  		(ct[w]||[]).forEach(function(v) {
  			o[o.length] = (writextag('Override', null, {
  				'PartName': (v[0] == '/' ? "":"/") + v,
  				'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
  			}));
  		});
  	};
  	var f3 = function(t) {
  		(ct[t]||[]).forEach(function(v) {
  			o[o.length] = (writextag('Override', null, {
  				'PartName': (v[0] == '/' ? "":"/") + v,
  				'ContentType': type2ct[t][0]
  			}));
  		});
  	};
  	f1('workbooks');
  	f2('sheets');
  	f2('charts');
  	f3('themes');
  	['strs', 'styles'].forEach(f1);
  	['coreprops', 'extprops', 'custprops'].forEach(f3);
  	f3('vba');
  	f3('comments');
  	f3('drawings');
  	if(o.length>2){ o[o.length] = ('</Types>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* 9.3 Relationships */
  var RELS = ({
  	WB: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
  	SHEET: "http://sheetjs.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
  	HLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink",
  	VML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing",
  	VBA: "http://schemas.microsoft.com/office/2006/relationships/vbaProject"
  });
  
  /* 9.3.3 Representing Relationships */
  function get_rels_path(file) {
  	var n = file.lastIndexOf("/");
  	return file.slice(0,n+1) + '_rels/' + file.slice(n+1) + ".rels";
  }
  
  function parse_rels(data, currentFilePath) {
  	if (!data) return data;
  	if (currentFilePath.charAt(0) !== '/') {
  		currentFilePath = '/'+currentFilePath;
  	}
  	var rels = {};
  	var hash = {};
  
  	(data.match(tagregex)||[]).forEach(function(x) {
  		var y = parsexmltag(x);
  		/* 9.3.2.2 OPC_Relationships */
  		if (y[0] === '<Relationship') {
  			var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; rel.TargetMode = y.TargetMode;
  			var canonictarget = y.TargetMode === 'External' ? y.Target : resolve_path(y.Target, currentFilePath);
  			rels[canonictarget] = rel;
  			hash[y.Id] = rel;
  		}
  	});
  	rels["!id"] = hash;
  	return rels;
  }
  
  XMLNS.RELS = 'http://schemas.openxmlformats.org/package/2006/relationships';
  
  var RELS_ROOT = writextag('Relationships', null, {
  	//'xmlns:ns0': XMLNS.RELS,
  	'xmlns': XMLNS.RELS
  });
  
  /* TODO */
  function write_rels(rels) {
  	var o = [XML_HEADER, RELS_ROOT];
  	keys(rels['!id']).forEach(function(rid) {
  		o[o.length] = (writextag('Relationship', null, rels['!id'][rid]));
  	});
  	if(o.length>2){ o[o.length] = ('</Relationships>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  
  function add_rels(rels, rId, f, type, relobj) {
  	if(!relobj) relobj = {};
  	if(!rels['!id']) rels['!id'] = {};
  	if(rId < 0) for(rId = 1; rels['!id']['rId' + rId]; ++rId){/* empty */}
  	relobj.Id = 'rId' + rId;
  	relobj.Type = type;
  	relobj.Target = f;
  	if(relobj.Type == RELS.HLINK) relobj.TargetMode = "External";
  	if(rels['!id'][relobj.Id]) throw new Error("Cannot rewrite rId " + rId);
  	rels['!id'][relobj.Id] = relobj;
  	rels[('/' + relobj.Target).replace("//","/")] = relobj;
  	return rId;
  }
  /* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
  /* Part 3 Section 4 Manifest File */
  var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
  function parse_manifest(d, opts) {
  	var str = xlml_normalize(d);
  	var Rn;
  	var FEtag;
  	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
  		case 'manifest': break; // 4.2 <manifest:manifest>
  		case 'file-entry': // 4.3 <manifest:file-entry>
  			FEtag = parsexmltag(Rn[0], false);
  			if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
  			break;
  		case 'encryption-data': // 4.4 <manifest:encryption-data>
  		case 'algorithm': // 4.5 <manifest:algorithm>
  		case 'start-key-generation': // 4.6 <manifest:start-key-generation>
  		case 'key-derivation': // 4.7 <manifest:key-derivation>
  			throw new Error("Unsupported ODS Encryption");
  		default: if(opts && opts.WTF) throw Rn;
  	}
  }
  
  function write_manifest(manifest) {
  	var o = [XML_HEADER];
  	o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
  	o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
  	for(var i = 0; i < manifest.length; ++i) o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
  	o.push('</manifest:manifest>');
  	return o.join("");
  }
  
  /* Part 3 Section 6 Metadata Manifest File */
  function write_rdf_type(file, res, tag) {
  	return [
  		'  <rdf:Description rdf:about="' + file + '">\n',
  		'    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + '#' + res + '"/>\n',
  		'  </rdf:Description>\n'
  	].join("");
  }
  function write_rdf_has(base, file) {
  	return [
  		'  <rdf:Description rdf:about="' + base + '">\n',
  		'    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
  		'  </rdf:Description>\n'
  	].join("");
  }
  function write_rdf(rdf) {
  	var o = [XML_HEADER];
  	o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
  	for(var i = 0; i != rdf.length; ++i) {
  		o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
  		o.push(write_rdf_has("",rdf[i][0]));
  	}
  	o.push(write_rdf_type("","Document", "pkg"));
  	o.push('</rdf:RDF>');
  	return o.join("");
  }
  /* TODO: pull properties */
  var write_meta_ods = (function() {
  	var payload = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
  	return function wmo() {
  		return payload;
  	};
  })();
  
  /* ECMA-376 Part II 11.1 Core Properties Part */
  /* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
  var CORE_PROPS = [
  	["cp:category", "Category"],
  	["cp:contentStatus", "ContentStatus"],
  	["cp:keywords", "Keywords"],
  	["cp:lastModifiedBy", "LastAuthor"],
  	["cp:lastPrinted", "LastPrinted"],
  	["cp:revision", "RevNumber"],
  	["cp:version", "Version"],
  	["dc:creator", "Author"],
  	["dc:description", "Comments"],
  	["dc:identifier", "Identifier"],
  	["dc:language", "Language"],
  	["dc:subject", "Subject"],
  	["dc:title", "Title"],
  	["dcterms:created", "CreatedDate", 'date'],
  	["dcterms:modified", "ModifiedDate", 'date']
  ];
  
  XMLNS.CORE_PROPS = "http://schemas.openxmlformats.org/package/2006/metadata/core-properties";
  RELS.CORE_PROPS  = 'http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties';
  
  var CORE_PROPS_REGEX = (function() {
  	var r = new Array(CORE_PROPS.length);
  	for(var i = 0; i < CORE_PROPS.length; ++i) {
  		var f = CORE_PROPS[i];
  		var g = "(?:"+ f[0].slice(0,f[0].indexOf(":")) +":)"+ f[0].slice(f[0].indexOf(":")+1);
  		r[i] = new RegExp("<" + g + "[^>]*>([\\s\\S]*?)<\/" + g + ">");
  	}
  	return r;
  })();
  
  function parse_core_props(data) {
  	var p = {};
  	data = utf8read(data);
  
  	for(var i = 0; i < CORE_PROPS.length; ++i) {
  		var f = CORE_PROPS[i], cur = data.match(CORE_PROPS_REGEX[i]);
  		if(cur != null && cur.length > 0) p[f[1]] = cur[1];
  		if(f[2] === 'date' && p[f[1]]) p[f[1]] = parseDate(p[f[1]]);
  	}
  
  	return p;
  }
  
  var CORE_PROPS_XML_ROOT = writextag('cp:coreProperties', null, {
  	//'xmlns': XMLNS.CORE_PROPS,
  	'xmlns:cp': XMLNS.CORE_PROPS,
  	'xmlns:dc': XMLNS.dc,
  	'xmlns:dcterms': XMLNS.dcterms,
  	'xmlns:dcmitype': XMLNS.dcmitype,
  	'xmlns:xsi': XMLNS.xsi
  });
  
  function cp_doit(f, g, h, o, p) {
  	if(p[f] != null || g == null || g === "") return;
  	p[f] = g;
  	o[o.length] = (h ? writextag(f,g,h) : writetag(f,g));
  }
  
  function write_core_props(cp, _opts) {
  	var opts = _opts || {};
  	var o = [XML_HEADER, CORE_PROPS_XML_ROOT], p = {};
  	if(!cp && !opts.Props) return o.join("");
  
  	if(cp) {
  		if(cp.CreatedDate != null) cp_doit("dcterms:created", typeof cp.CreatedDate === "string" ? cp.CreatedDate : write_w3cdtf(cp.CreatedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
  		if(cp.ModifiedDate != null) cp_doit("dcterms:modified", typeof cp.ModifiedDate === "string" ? cp.ModifiedDate : write_w3cdtf(cp.ModifiedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
  	}
  
  	for(var i = 0; i != CORE_PROPS.length; ++i) {
  		var f = CORE_PROPS[i];
  		var v = opts.Props && opts.Props[f[1]] != null ? opts.Props[f[1]] : cp ? cp[f[1]] : null;
  		if(v === true) v = "1";
  		else if(v === false) v = "0";
  		else if(typeof v == "number") v = String(v);
  		if(v != null) cp_doit(f[0], v, null, o, p);
  	}
  	if(o.length>2){ o[o.length] = ('</cp:coreProperties>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* 15.2.12.3 Extended File Properties Part */
  /* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
  var EXT_PROPS = [
  	["Application", "Application", "string"],
  	["AppVersion", "AppVersion", "string"],
  	["Company", "Company", "string"],
  	["DocSecurity", "DocSecurity", "string"],
  	["Manager", "Manager", "string"],
  	["HyperlinksChanged", "HyperlinksChanged", "bool"],
  	["SharedDoc", "SharedDoc", "bool"],
  	["LinksUpToDate", "LinksUpToDate", "bool"],
  	["ScaleCrop", "ScaleCrop", "bool"],
  	["HeadingPairs", "HeadingPairs", "raw"],
  	["TitlesOfParts", "TitlesOfParts", "raw"]
  ];
  
  XMLNS.EXT_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties";
  RELS.EXT_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties';
  
  var PseudoPropsPairs = [
  	"Worksheets",  "SheetNames",
  	"NamedRanges", "DefinedNames",
  	"Chartsheets", "ChartNames"
  ];
  function load_props_pairs(HP, TOP, props, opts) {
  	var v = [];
  	if(typeof HP == "string") v = parseVector(HP, opts);
  	else for(var j = 0; j < HP.length; ++j) v = v.concat(HP[j].map(function(hp) { return {v:hp}; }));
  	var parts = (typeof TOP == "string") ? parseVector(TOP, opts).map(function (x) { return x.v; }) : TOP;
  	var idx = 0, len = 0;
  	if(parts.length > 0) for(var i = 0; i !== v.length; i += 2) {
  		len = +(v[i+1].v);
  		switch(v[i].v) {
  			case "Worksheets":
  			case "工作表":
  			case "Листы":
  			case "أوراق العمل":
  			case "ワークシート":
  			case "גליונות עבודה":
  			case "Arbeitsblätter":
  			case "Çalışma Sayfaları":
  			case "Feuilles de calcul":
  			case "Fogli di lavoro":
  			case "Folhas de cálculo":
  			case "Planilhas":
  			case "Regneark":
  			case "Werkbladen":
  				props.Worksheets = len;
  				props.SheetNames = parts.slice(idx, idx + len);
  				break;
  
  			case "Named Ranges":
  			case "名前付き一覧":
  			case "Benannte Bereiche":
  			case "Navngivne områder":
  				props.NamedRanges = len;
  				props.DefinedNames = parts.slice(idx, idx + len);
  				break;
  
  			case "Charts":
  			case "Diagramme":
  				props.Chartsheets = len;
  				props.ChartNames = parts.slice(idx, idx + len);
  				break;
  		}
  		idx += len;
  	}
  }
  
  function parse_ext_props(data, p, opts) {
  	var q = {}; if(!p) p = {};
  	data = utf8read(data);
  
  	EXT_PROPS.forEach(function(f) {
  		switch(f[2]) {
  			case "string": p[f[1]] = (data.match(matchtag(f[0]))||[])[1]; break;
  			case "bool": p[f[1]] = (data.match(matchtag(f[0]))||[])[1] === "true"; break;
  			case "raw":
  				var cur = data.match(new RegExp("<" + f[0] + "[^>]*>([\\s\\S]*?)<\/" + f[0] + ">"));
  				if(cur && cur.length > 0) q[f[1]] = cur[1];
  				break;
  		}
  	});
  
  	if(q.HeadingPairs && q.TitlesOfParts) load_props_pairs(q.HeadingPairs, q.TitlesOfParts, p, opts);
  
  	return p;
  }
  
  var EXT_PROPS_XML_ROOT = writextag('Properties', null, {
  	'xmlns': XMLNS.EXT_PROPS,
  	'xmlns:vt': XMLNS.vt
  });
  
  function write_ext_props(cp) {
  	var o = [], W = writextag;
  	if(!cp) cp = {};
  	cp.Application = "SheetJS";
  	o[o.length] = (XML_HEADER);
  	o[o.length] = (EXT_PROPS_XML_ROOT);
  
  	EXT_PROPS.forEach(function(f) {
  		if(cp[f[1]] === undefined) return;
  		var v;
  		switch(f[2]) {
  			case 'string': v = String(cp[f[1]]); break;
  			case 'bool': v = cp[f[1]] ? 'true' : 'false'; break;
  		}
  		if(v !== undefined) o[o.length] = (W(f[0], v));
  	});
  
  	/* TODO: HeadingPairs, TitlesOfParts */
  	o[o.length] = (W('HeadingPairs', W('vt:vector', W('vt:variant', '<vt:lpstr>Worksheets</vt:lpstr>')+W('vt:variant', W('vt:i4', String(cp.Worksheets))), {size:2, baseType:"variant"})));
  	o[o.length] = (W('TitlesOfParts', W('vt:vector', cp.SheetNames.map(function(s) { return "<vt:lpstr>" + escapexml(s) + "</vt:lpstr>"; }).join(""), {size: cp.Worksheets, baseType:"lpstr"})));
  	if(o.length>2){ o[o.length] = ('</Properties>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* 15.2.12.2 Custom File Properties Part */
  XMLNS.CUST_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/custom-properties";
  RELS.CUST_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties';
  
  var custregex = /<[^>]+>[^<]*/g;
  function parse_cust_props(data, opts) {
  	var p = {}, name = "";
  	var m = data.match(custregex);
  	if(m) for(var i = 0; i != m.length; ++i) {
  		var x = m[i], y = parsexmltag(x);
  		switch(y[0]) {
  			case '<?xml': break;
  			case '<Properties': break;
  			case '<property': name = y.name; break;
  			case '</property>': name = null; break;
  			default: if (x.indexOf('<vt:') === 0) {
  				var toks = x.split('>');
  				var type = toks[0].slice(4), text = toks[1];
  				/* 22.4.2.32 (CT_Variant). Omit the binary types from 22.4 (Variant Types) */
  				switch(type) {
  					case 'lpstr': case 'bstr': case 'lpwstr':
  						p[name] = unescapexml(text);
  						break;
  					case 'bool':
  						p[name] = parsexmlbool(text);
  						break;
  					case 'i1': case 'i2': case 'i4': case 'i8': case 'int': case 'uint':
  						p[name] = parseInt(text, 10);
  						break;
  					case 'r4': case 'r8': case 'decimal':
  						p[name] = parseFloat(text);
  						break;
  					case 'filetime': case 'date':
  						p[name] = parseDate(text);
  						break;
  					case 'cy': case 'error':
  						p[name] = unescapexml(text);
  						break;
  					default:
  						if(type.slice(-1) == '/') break;
  						if(opts.WTF && typeof console !== 'undefined') console.warn('Unexpected', x, type, toks);
  				}
  			} else if(x.slice(0,2) === "</") {/* empty */
  			} else if(opts.WTF) throw new Error(x);
  		}
  	}
  	return p;
  }
  
  var CUST_PROPS_XML_ROOT = writextag('Properties', null, {
  	'xmlns': XMLNS.CUST_PROPS,
  	'xmlns:vt': XMLNS.vt
  });
  
  function write_cust_props(cp) {
  	var o = [XML_HEADER, CUST_PROPS_XML_ROOT];
  	if(!cp) return o.join("");
  	var pid = 1;
  	keys(cp).forEach(function custprop(k) { ++pid;
  		o[o.length] = (writextag('property', write_vt(cp[k]), {
  			'fmtid': '{D5CDD505-2E9C-101B-9397-08002B2CF9AE}',
  			'pid': pid,
  			'name': k
  		}));
  	});
  	if(o.length>2){ o[o.length] = '</Properties>'; o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* Common Name -> XLML Name */
  var XLMLDocPropsMap = {
  	Title: 'Title',
  	Subject: 'Subject',
  	Author: 'Author',
  	Keywords: 'Keywords',
  	Comments: 'Description',
  	LastAuthor: 'LastAuthor',
  	RevNumber: 'Revision',
  	Application: 'AppName',
  	/* TotalTime: 'TotalTime', */
  	LastPrinted: 'LastPrinted',
  	CreatedDate: 'Created',
  	ModifiedDate: 'LastSaved',
  	/* Pages */
  	/* Words */
  	/* Characters */
  	Category: 'Category',
  	/* PresentationFormat */
  	Manager: 'Manager',
  	Company: 'Company',
  	/* Guid */
  	/* HyperlinkBase */
  	/* Bytes */
  	/* Lines */
  	/* Paragraphs */
  	/* CharactersWithSpaces */
  	AppVersion: 'Version',
  
  	ContentStatus: 'ContentStatus', /* NOTE: missing from schema */
  	Identifier: 'Identifier', /* NOTE: missing from schema */
  	Language: 'Language' /* NOTE: missing from schema */
  };
  var evert_XLMLDPM = evert(XLMLDocPropsMap);
  
  function xlml_set_prop(Props, tag, val) {
  	tag = evert_XLMLDPM[tag] || tag;
  	Props[tag] = val;
  }
  
  function xlml_write_docprops(Props, opts) {
  	var o = [];
  	keys(XLMLDocPropsMap).map(function(m) {
  		for(var i = 0; i < CORE_PROPS.length; ++i) if(CORE_PROPS[i][1] == m) return CORE_PROPS[i];
  		for(i = 0; i < EXT_PROPS.length; ++i) if(EXT_PROPS[i][1] == m) return EXT_PROPS[i];
  		throw m;
  	}).forEach(function(p) {
  		if(Props[p[1]] == null) return;
  		var m = opts && opts.Props && opts.Props[p[1]] != null ? opts.Props[p[1]] : Props[p[1]];
  		switch(p[2]) {
  			case 'date': m = new Date(m).toISOString().replace(/\.\d*Z/,"Z"); break;
  		}
  		if(typeof m == 'number') m = String(m);
  		else if(m === true || m === false) { m = m ? "1" : "0"; }
  		else if(m instanceof Date) m = new Date(m).toISOString().replace(/\.\d*Z/,"");
  		o.push(writetag(XLMLDocPropsMap[p[1]] || p[1], m));
  	});
  	return writextag('DocumentProperties', o.join(""), {xmlns:XLMLNS.o });
  }
  function xlml_write_custprops(Props, Custprops) {
  	var BLACKLIST = ["Worksheets","SheetNames"];
  	var T = 'CustomDocumentProperties';
  	var o = [];
  	if(Props) keys(Props).forEach(function(k) {
  if(!Props.hasOwnProperty(k)) return;
  		for(var i = 0; i < CORE_PROPS.length; ++i) if(k == CORE_PROPS[i][1]) return;
  		for(i = 0; i < EXT_PROPS.length; ++i) if(k == EXT_PROPS[i][1]) return;
  		for(i = 0; i < BLACKLIST.length; ++i) if(k == BLACKLIST[i]) return;
  
  		var m = Props[k];
  		var t = "string";
  		if(typeof m == 'number') { t = "float"; m = String(m); }
  		else if(m === true || m === false) { t = "boolean"; m = m ? "1" : "0"; }
  		else m = String(m);
  		o.push(writextag(escapexmltag(k), m, {"dt:dt":t}));
  	});
  	if(Custprops) keys(Custprops).forEach(function(k) {
  if(!Custprops.hasOwnProperty(k)) return;
  		if(Props && Props.hasOwnProperty(k)) return;
  		var m = Custprops[k];
  		var t = "string";
  		if(typeof m == 'number') { t = "float"; m = String(m); }
  		else if(m === true || m === false) { t = "boolean"; m = m ? "1" : "0"; }
  		else if(m instanceof Date) { t = "dateTime.tz"; m = m.toISOString(); }
  		else m = String(m);
  		o.push(writextag(escapexmltag(k), m, {"dt:dt":t}));
  	});
  	return '<' + T + ' xmlns="' + XLMLNS.o + '">' + o.join("") + '</' + T + '>';
  }
  /* [MS-DTYP] 2.3.3 FILETIME */
  /* [MS-OLEDS] 2.1.3 FILETIME (Packet Version) */
  /* [MS-OLEPS] 2.8 FILETIME (Packet Version) */
  function parse_FILETIME(blob) {
  	var dwLowDateTime = blob.read_shift(4), dwHighDateTime = blob.read_shift(4);
  	return new Date(((dwHighDateTime/1e7*Math.pow(2,32) + dwLowDateTime/1e7) - 11644473600)*1000).toISOString().replace(/\.000/,"");
  }
  function write_FILETIME(time) {
  	var date = (typeof time == "string") ? new Date(Date.parse(time)) : time;
  	var t = date.getTime() / 1000 + 11644473600;
  	var l = t % Math.pow(2,32), h = (t - l) / Math.pow(2,32);
  	l *= 1e7; h *= 1e7;
  	var w = (l / Math.pow(2,32)) | 0;
  	if(w > 0) { l = l % Math.pow(2,32); h += w; }
  	var o = new_buf(8); o.write_shift(4, l); o.write_shift(4, h); return o;
  }
  
  /* [MS-OSHARED] 2.3.3.1.4 Lpstr */
  function parse_lpstr(blob, type, pad) {
  	var start = blob.l;
  	var str = blob.read_shift(0, 'lpstr-cp');
  	if(pad) while((blob.l - start) & 3) ++blob.l;
  	return str;
  }
  
  /* [MS-OSHARED] 2.3.3.1.6 Lpwstr */
  function parse_lpwstr(blob, type, pad) {
  	var str = blob.read_shift(0, 'lpwstr');
  	if(pad) blob.l += (4 - ((str.length+1) & 3)) & 3;
  	return str;
  }
  
  
  /* [MS-OSHARED] 2.3.3.1.11 VtString */
  /* [MS-OSHARED] 2.3.3.1.12 VtUnalignedString */
  function parse_VtStringBase(blob, stringType, pad) {
  	if(stringType === 0x1F /*VT_LPWSTR*/) return parse_lpwstr(blob);
  	return parse_lpstr(blob, stringType, pad);
  }
  
  function parse_VtString(blob, t, pad) { return parse_VtStringBase(blob, t, pad === false ? 0: 4); }
  function parse_VtUnalignedString(blob, t) { if(!t) throw new Error("VtUnalignedString must have positive length"); return parse_VtStringBase(blob, t, 0); }
  
  /* [MS-OSHARED] 2.3.3.1.9 VtVecUnalignedLpstrValue */
  function parse_VtVecUnalignedLpstrValue(blob) {
  	var length = blob.read_shift(4);
  	var ret = [];
  	for(var i = 0; i != length; ++i) ret[i] = blob.read_shift(0, 'lpstr-cp').replace(chr0,'');
  	return ret;
  }
  
  /* [MS-OSHARED] 2.3.3.1.10 VtVecUnalignedLpstr */
  function parse_VtVecUnalignedLpstr(blob) {
  	return parse_VtVecUnalignedLpstrValue(blob);
  }
  
  /* [MS-OSHARED] 2.3.3.1.13 VtHeadingPair */
  function parse_VtHeadingPair(blob) {
  	var headingString = parse_TypedPropertyValue(blob, VT_USTR);
  	var headerParts = parse_TypedPropertyValue(blob, VT_I4);
  	return [headingString, headerParts];
  }
  
  /* [MS-OSHARED] 2.3.3.1.14 VtVecHeadingPairValue */
  function parse_VtVecHeadingPairValue(blob) {
  	var cElements = blob.read_shift(4);
  	var out = [];
  	for(var i = 0; i != cElements / 2; ++i) out.push(parse_VtHeadingPair(blob));
  	return out;
  }
  
  /* [MS-OSHARED] 2.3.3.1.15 VtVecHeadingPair */
  function parse_VtVecHeadingPair(blob) {
  	// NOTE: When invoked, wType & padding were already consumed
  	return parse_VtVecHeadingPairValue(blob);
  }
  
  /* [MS-OLEPS] 2.18.1 Dictionary (uses 2.17, 2.16) */
  function parse_dictionary(blob,CodePage) {
  	var cnt = blob.read_shift(4);
  	var dict = ({});
  	for(var j = 0; j != cnt; ++j) {
  		var pid = blob.read_shift(4);
  		var len = blob.read_shift(4);
  		dict[pid] = blob.read_shift(len, (CodePage === 0x4B0 ?'utf16le':'utf8')).replace(chr0,'').replace(chr1,'!');
  		if(CodePage === 0x4B0 && (len % 2)) blob.l += 2;
  	}
  	if(blob.l & 3) blob.l = (blob.l>>2+1)<<2;
  	return dict;
  }
  
  /* [MS-OLEPS] 2.9 BLOB */
  function parse_BLOB(blob) {
  	var size = blob.read_shift(4);
  	var bytes = blob.slice(blob.l,blob.l+size);
  	blob.l += size;
  	if((size & 3) > 0) blob.l += (4 - (size & 3)) & 3;
  	return bytes;
  }
  
  /* [MS-OLEPS] 2.11 ClipboardData */
  function parse_ClipboardData(blob) {
  	// TODO
  	var o = {};
  	o.Size = blob.read_shift(4);
  	//o.Format = blob.read_shift(4);
  	blob.l += o.Size + 3 - (o.Size - 1) % 4;
  	return o;
  }
  
  /* [MS-OLEPS] 2.15 TypedPropertyValue */
  function parse_TypedPropertyValue(blob, type, _opts) {
  	var t = blob.read_shift(2), ret, opts = _opts||{};
  	blob.l += 2;
  	if(type !== VT_VARIANT)
  	if(t !== type && VT_CUSTOM.indexOf(type)===-1) throw new Error('Expected type ' + type + ' saw ' + t);
  	switch(type === VT_VARIANT ? t : type) {
  		case 0x02 /*VT_I2*/: ret = blob.read_shift(2, 'i'); if(!opts.raw) blob.l += 2; return ret;
  		case 0x03 /*VT_I4*/: ret = blob.read_shift(4, 'i'); return ret;
  		case 0x0B /*VT_BOOL*/: return blob.read_shift(4) !== 0x0;
  		case 0x13 /*VT_UI4*/: ret = blob.read_shift(4); return ret;
  		case 0x1E /*VT_LPSTR*/: return parse_lpstr(blob, t, 4).replace(chr0,'');
  		case 0x1F /*VT_LPWSTR*/: return parse_lpwstr(blob);
  		case 0x40 /*VT_FILETIME*/: return parse_FILETIME(blob);
  		case 0x41 /*VT_BLOB*/: return parse_BLOB(blob);
  		case 0x47 /*VT_CF*/: return parse_ClipboardData(blob);
  		case 0x50 /*VT_STRING*/: return parse_VtString(blob, t, !opts.raw).replace(chr0,'');
  		case 0x51 /*VT_USTR*/: return parse_VtUnalignedString(blob, t/*, 4*/).replace(chr0,'');
  		case 0x100C /*VT_VECTOR|VT_VARIANT*/: return parse_VtVecHeadingPair(blob);
  		case 0x101E /*VT_LPSTR*/: return parse_VtVecUnalignedLpstr(blob);
  		default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + t);
  	}
  }
  function write_TypedPropertyValue(type, value) {
  	var o = new_buf(4), p = new_buf(4);
  	o.write_shift(4, type == 0x50 ? 0x1F : type);
  	switch(type) {
  		case 0x03 /*VT_I4*/: p.write_shift(-4, value); break;
  		case 0x05 /*VT_I4*/: p = new_buf(8); p.write_shift(8, value, 'f'); break;
  		case 0x0B /*VT_BOOL*/: p.write_shift(4, value ? 0x01 : 0x00); break;
  		case 0x40 /*VT_FILETIME*/:  p = write_FILETIME(value); break;
  		case 0x1F /*VT_LPWSTR*/:
  		case 0x50 /*VT_STRING*/:
  p = new_buf(4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2));
  			p.write_shift(4, value.length + 1);
  			p.write_shift(0, value, "dbcs");
  			while(p.l != p.length) p.write_shift(1, 0);
  			break;
  		default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + value);
  	}
  	return bconcat([o, p]);
  }
  
  /* [MS-OLEPS] 2.20 PropertySet */
  function parse_PropertySet(blob, PIDSI) {
  	var start_addr = blob.l;
  	var size = blob.read_shift(4);
  	var NumProps = blob.read_shift(4);
  	var Props = [], i = 0;
  	var CodePage = 0;
  	var Dictionary = -1, DictObj = ({});
  	for(i = 0; i != NumProps; ++i) {
  		var PropID = blob.read_shift(4);
  		var Offset = blob.read_shift(4);
  		Props[i] = [PropID, Offset + start_addr];
  	}
  	Props.sort(function(x,y) { return x[1] - y[1]; });
  	var PropH = {};
  	for(i = 0; i != NumProps; ++i) {
  		if(blob.l !== Props[i][1]) {
  			var fail = true;
  			if(i>0 && PIDSI) switch(PIDSI[Props[i-1][0]].t) {
  				case 0x02 /*VT_I2*/: if(blob.l+2 === Props[i][1]) { blob.l+=2; fail = false; } break;
  				case 0x50 /*VT_STRING*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break;
  				case 0x100C /*VT_VECTOR|VT_VARIANT*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break;
  			}
  			if((!PIDSI||i==0) && blob.l <= Props[i][1]) { fail=false; blob.l = Props[i][1]; }
  			if(fail) throw new Error("Read Error: Expected address " + Props[i][1] + ' at ' + blob.l + ' :' + i);
  		}
  		if(PIDSI) {
  			var piddsi = PIDSI[Props[i][0]];
  			PropH[piddsi.n] = parse_TypedPropertyValue(blob, piddsi.t, {raw:true});
  			if(piddsi.p === 'version') PropH[piddsi.n] = String(PropH[piddsi.n] >> 16) + "." + ("0000" + String(PropH[piddsi.n] & 0xFFFF)).slice(-4);
  			if(piddsi.n == "CodePage") switch(PropH[piddsi.n]) {
  				case 0: PropH[piddsi.n] = 1252;
  					/* falls through */
  				case 874:
  				case 932:
  				case 936:
  				case 949:
  				case 950:
  				case 1250:
  				case 1251:
  				case 1253:
  				case 1254:
  				case 1255:
  				case 1256:
  				case 1257:
  				case 1258:
  				case 10000:
  				case 1200:
  				case 1201:
  				case 1252:
  				case 65000: case -536:
  				case 65001: case -535:
  					set_cp(CodePage = (PropH[piddsi.n]>>>0) & 0xFFFF); break;
  				default: throw new Error("Unsupported CodePage: " + PropH[piddsi.n]);
  			}
  		} else {
  			if(Props[i][0] === 0x1) {
  				CodePage = PropH.CodePage = (parse_TypedPropertyValue(blob, VT_I2));
  				set_cp(CodePage);
  				if(Dictionary !== -1) {
  					var oldpos = blob.l;
  					blob.l = Props[Dictionary][1];
  					DictObj = parse_dictionary(blob,CodePage);
  					blob.l = oldpos;
  				}
  			} else if(Props[i][0] === 0) {
  				if(CodePage === 0) { Dictionary = i; blob.l = Props[i+1][1]; continue; }
  				DictObj = parse_dictionary(blob,CodePage);
  			} else {
  				var name = DictObj[Props[i][0]];
  				var val;
  				/* [MS-OSHARED] 2.3.3.2.3.1.2 + PROPVARIANT */
  				switch(blob[blob.l]) {
  					case 0x41 /*VT_BLOB*/: blob.l += 4; val = parse_BLOB(blob); break;
  					case 0x1E /*VT_LPSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break;
  					case 0x1F /*VT_LPWSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break;
  					case 0x03 /*VT_I4*/: blob.l += 4; val = blob.read_shift(4, 'i'); break;
  					case 0x13 /*VT_UI4*/: blob.l += 4; val = blob.read_shift(4); break;
  					case 0x05 /*VT_R8*/: blob.l += 4; val = blob.read_shift(8, 'f'); break;
  					case 0x0B /*VT_BOOL*/: blob.l += 4; val = parsebool(blob, 4); break;
  					case 0x40 /*VT_FILETIME*/: blob.l += 4; val = parseDate(parse_FILETIME(blob)); break;
  					default: throw new Error("unparsed value: " + blob[blob.l]);
  				}
  				PropH[name] = val;
  			}
  		}
  	}
  	blob.l = start_addr + size; /* step ahead to skip padding */
  	return PropH;
  }
  var XLSPSSkip = [ "CodePage", "Thumbnail", "_PID_LINKBASE", "_PID_HLINKS", "SystemIdentifier", "FMTID" ].concat(PseudoPropsPairs);
  function guess_property_type(val) {
  	switch(typeof val) {
  		case "boolean": return 0x0B;
  		case "number": return ((val|0)==val) ? 0x03 : 0x05;
  		case "string": return 0x1F;
  		case "object": if(val instanceof Date) return 0x40; break;
  	}
  	return -1;
  }
  function write_PropertySet(entries, RE, PIDSI) {
  	var hdr = new_buf(8), piao = [], prop = [];
  	var sz = 8, i = 0;
  
  	var pr = new_buf(8), pio = new_buf(8);
  	pr.write_shift(4, 0x0002);
  	pr.write_shift(4, 0x04B0);
  	pio.write_shift(4, 0x0001);
  	prop.push(pr); piao.push(pio);
  	sz += 8 + pr.length;
  
  	if(!RE) {
  		pio = new_buf(8);
  		pio.write_shift(4, 0);
  		piao.unshift(pio);
  
  		var bufs = [new_buf(4)];
  		bufs[0].write_shift(4, entries.length);
  		for(i = 0; i < entries.length; ++i) {
  			var value = entries[i][0];
  			pr = new_buf(4 + 4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2));
  			pr.write_shift(4, i+2);
  			pr.write_shift(4, value.length + 1);
  			pr.write_shift(0, value, "dbcs");
  			while(pr.l != pr.length) pr.write_shift(1, 0);
  			bufs.push(pr);
  		}
  		pr = bconcat(bufs);
  		prop.unshift(pr);
  		sz += 8 + pr.length;
  	}
  
  	for(i = 0; i < entries.length; ++i) {
  		if(RE && !RE[entries[i][0]]) continue;
  		if(XLSPSSkip.indexOf(entries[i][0]) > -1) continue;
  		if(entries[i][1] == null) continue;
  
  		var val = entries[i][1], idx = 0;
  		if(RE) {
  			idx = +RE[entries[i][0]];
  			var pinfo = (PIDSI)[idx];
  			if(pinfo.p == "version" && typeof val == "string") {
  var arr = val.split(".");
  				val = ((+arr[0])<<16) + ((+arr[1])||0);
  			}
  			pr = write_TypedPropertyValue(pinfo.t, val);
  		} else {
  			var T = guess_property_type(val);
  			if(T == -1) { T = 0x1F; val = String(val); }
  			pr = write_TypedPropertyValue(T, val);
  		}
  		prop.push(pr);
  
  		pio = new_buf(8);
  		pio.write_shift(4, !RE ? 2+i : idx);
  		piao.push(pio);
  
  		sz += 8 + pr.length;
  	}
  
  	var w = 8 * (prop.length + 1);
  	for(i = 0; i < prop.length; ++i) { piao[i].write_shift(4, w); w += prop[i].length; }
  	hdr.write_shift(4, sz);
  	hdr.write_shift(4, prop.length);
  	return bconcat([hdr].concat(piao).concat(prop));
  }
  
  /* [MS-OLEPS] 2.21 PropertySetStream */
  function parse_PropertySetStream(file, PIDSI, clsid) {
  	var blob = file.content;
  	if(!blob) return ({});
  	prep_blob(blob, 0);
  
  	var NumSets, FMTID0, FMTID1, Offset0, Offset1 = 0;
  	blob.chk('feff', 'Byte Order: ');
  
  	/*var vers = */blob.read_shift(2); // TODO: check version
  	var SystemIdentifier = blob.read_shift(4);
  	var CLSID = blob.read_shift(16);
  	if(CLSID !== CFB.utils.consts.HEADER_CLSID && CLSID !== clsid) throw new Error("Bad PropertySet CLSID " + CLSID);
  	NumSets = blob.read_shift(4);
  	if(NumSets !== 1 && NumSets !== 2) throw new Error("Unrecognized #Sets: " + NumSets);
  	FMTID0 = blob.read_shift(16); Offset0 = blob.read_shift(4);
  
  	if(NumSets === 1 && Offset0 !== blob.l) throw new Error("Length mismatch: " + Offset0 + " !== " + blob.l);
  	else if(NumSets === 2) { FMTID1 = blob.read_shift(16); Offset1 = blob.read_shift(4); }
  	var PSet0 = parse_PropertySet(blob, PIDSI);
  
  	var rval = ({ SystemIdentifier: SystemIdentifier });
  	for(var y in PSet0) rval[y] = PSet0[y];
  	//rval.blob = blob;
  	rval.FMTID = FMTID0;
  	//rval.PSet0 = PSet0;
  	if(NumSets === 1) return rval;
  	if(Offset1 - blob.l == 2) blob.l += 2;
  	if(blob.l !== Offset1) throw new Error("Length mismatch 2: " + blob.l + " !== " + Offset1);
  	var PSet1;
  	try { PSet1 = parse_PropertySet(blob, null); } catch(e) {/* empty */}
  	for(y in PSet1) rval[y] = PSet1[y];
  	rval.FMTID = [FMTID0, FMTID1]; // TODO: verify FMTID0/1
  	return rval;
  }
  function write_PropertySetStream(entries, clsid, RE, PIDSI, entries2, clsid2) {
  	var hdr = new_buf(entries2 ? 68 : 48);
  	var bufs = [hdr];
  	hdr.write_shift(2, 0xFFFE);
  	hdr.write_shift(2, 0x0000); /* TODO: type 1 props */
  	hdr.write_shift(4, 0x32363237);
  	hdr.write_shift(16, CFB.utils.consts.HEADER_CLSID, "hex");
  	hdr.write_shift(4, (entries2 ? 2 : 1));
  	hdr.write_shift(16, clsid, "hex");
  	hdr.write_shift(4, (entries2 ? 68 : 48));
  	var ps0 = write_PropertySet(entries, RE, PIDSI);
  	bufs.push(ps0);
  
  	if(entries2) {
  		var ps1 = write_PropertySet(entries2, null, null);
  		hdr.write_shift(16, clsid2, "hex");
  		hdr.write_shift(4, 68 + ps0.length);
  		bufs.push(ps1);
  	}
  	return bconcat(bufs);
  }
  
  function parsenoop2(blob, length) { blob.read_shift(length); return null; }
  function writezeroes(n, o) { if(!o) o=new_buf(n); for(var j=0; j<n; ++j) o.write_shift(1, 0); return o; }
  
  function parslurp(blob, length, cb) {
  	var arr = [], target = blob.l + length;
  	while(blob.l < target) arr.push(cb(blob, target - blob.l));
  	if(target !== blob.l) throw new Error("Slurp error");
  	return arr;
  }
  
  function parsebool(blob, length) { return blob.read_shift(length) === 0x1; }
  function writebool(v, o) { if(!o) o=new_buf(2); o.write_shift(2, +!!v); return o; }
  
  function parseuint16(blob) { return blob.read_shift(2, 'u'); }
  function writeuint16(v, o) { if(!o) o=new_buf(2); o.write_shift(2, v); return o; }
  function parseuint16a(blob, length) { return parslurp(blob,length,parseuint16);}
  
  /* --- 2.5 Structures --- */
  
  /* [MS-XLS] 2.5.10 Bes (boolean or error) */
  function parse_Bes(blob) {
  	var v = blob.read_shift(1), t = blob.read_shift(1);
  	return t === 0x01 ? v : v === 0x01;
  }
  function write_Bes(v, t, o) {
  	if(!o) o = new_buf(2);
  	o.write_shift(1, +v);
  	o.write_shift(1, ((t == 'e') ? 1 : 0));
  	return o;
  }
  
  /* [MS-XLS] 2.5.240 ShortXLUnicodeString */
  function parse_ShortXLUnicodeString(blob, length, opts) {
  	var cch = blob.read_shift(opts && opts.biff >= 12 ? 2 : 1);
  	var encoding = 'sbcs-cont';
  	var cp = current_codepage;
  	if(opts && opts.biff >= 8) current_codepage = 1200;
  	if(!opts || opts.biff == 8 ) {
  		var fHighByte = blob.read_shift(1);
  		if(fHighByte) { encoding = 'dbcs-cont'; }
  	} else if(opts.biff == 12) {
  		encoding = 'wstr';
  	}
  	if(opts.biff >= 2 && opts.biff <= 5) encoding = 'cpstr';
  	var o = cch ? blob.read_shift(cch, encoding) : "";
  	current_codepage = cp;
  	return o;
  }
  
  /* 2.5.293 XLUnicodeRichExtendedString */
  function parse_XLUnicodeRichExtendedString(blob) {
  	var cp = current_codepage;
  	current_codepage = 1200;
  	var cch = blob.read_shift(2), flags = blob.read_shift(1);
  	var /*fHighByte = flags & 0x1,*/ fExtSt = flags & 0x4, fRichSt = flags & 0x8;
  	var width = 1 + (flags & 0x1); // 0x0 -> utf8, 0x1 -> dbcs
  	var cRun = 0, cbExtRst;
  	var z = {};
  	if(fRichSt) cRun = blob.read_shift(2);
  	if(fExtSt) cbExtRst = blob.read_shift(4);
  	var encoding = width == 2 ? 'dbcs-cont' : 'sbcs-cont';
  	var msg = cch === 0 ? "" : blob.read_shift(cch, encoding);
  	if(fRichSt) blob.l += 4 * cRun; //TODO: parse this
  	if(fExtSt) blob.l += cbExtRst; //TODO: parse this
  	z.t = msg;
  	if(!fRichSt) { z.raw = "<t>" + z.t + "</t>"; z.r = z.t; }
  	current_codepage = cp;
  	return z;
  }
  
  /* 2.5.296 XLUnicodeStringNoCch */
  function parse_XLUnicodeStringNoCch(blob, cch, opts) {
  	var retval;
  	if(opts) {
  		if(opts.biff >= 2 && opts.biff <= 5) return blob.read_shift(cch, 'cpstr');
  		if(opts.biff >= 12) return blob.read_shift(cch, 'dbcs-cont');
  	}
  	var fHighByte = blob.read_shift(1);
  	if(fHighByte===0) { retval = blob.read_shift(cch, 'sbcs-cont'); }
  	else { retval = blob.read_shift(cch, 'dbcs-cont'); }
  	return retval;
  }
  
  /* 2.5.294 XLUnicodeString */
  function parse_XLUnicodeString(blob, length, opts) {
  	var cch = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	if(cch === 0) { blob.l++; return ""; }
  	return parse_XLUnicodeStringNoCch(blob, cch, opts);
  }
  /* BIFF5 override */
  function parse_XLUnicodeString2(blob, length, opts) {
  	if(opts.biff > 5) return parse_XLUnicodeString(blob, length, opts);
  	var cch = blob.read_shift(1);
  	if(cch === 0) { blob.l++; return ""; }
  	return blob.read_shift(cch, (opts.biff <= 4 || !blob.lens ) ? 'cpstr' : 'sbcs-cont');
  }
  /* TODO: BIFF5 and lower, codepage awareness */
  function write_XLUnicodeString(str, opts, o) {
  	if(!o) o = new_buf(3 + 2 * str.length);
  	o.write_shift(2, str.length);
  	o.write_shift(1, 1);
  	o.write_shift(31, str, 'utf16le');
  	return o;
  }
  
  /* [MS-XLS] 2.5.61 ControlInfo */
  function parse_ControlInfo(blob) {
  	var flags = blob.read_shift(1);
  	blob.l++;
  	var accel = blob.read_shift(2);
  	blob.l += 2;
  	return [flags, accel];
  }
  
  /* [MS-OSHARED] 2.3.7.6 URLMoniker TODO: flags */
  function parse_URLMoniker(blob) {
  	var len = blob.read_shift(4), start = blob.l;
  	var extra = false;
  	if(len > 24) {
  		/* look ahead */
  		blob.l += len - 24;
  		if(blob.read_shift(16) === "795881f43b1d7f48af2c825dc4852763") extra = true;
  		blob.l = start;
  	}
  	var url = blob.read_shift((extra?len-24:len)>>1, 'utf16le').replace(chr0,"");
  	if(extra) blob.l += 24;
  	return url;
  }
  
  /* [MS-OSHARED] 2.3.7.8 FileMoniker TODO: all fields */
  function parse_FileMoniker(blob) {
  	blob.l += 2; //var cAnti = blob.read_shift(2);
  	var ansiPath = blob.read_shift(0, 'lpstr-ansi');
  	blob.l += 2; //var endServer = blob.read_shift(2);
  	if(blob.read_shift(2) != 0xDEAD) throw new Error("Bad FileMoniker");
  	var sz = blob.read_shift(4);
  	if(sz === 0) return ansiPath.replace(/\\/g,"/");
  	var bytes = blob.read_shift(4);
  	if(blob.read_shift(2) != 3) throw new Error("Bad FileMoniker");
  	var unicodePath = blob.read_shift(bytes>>1, 'utf16le').replace(chr0,"");
  	return unicodePath;
  }
  
  /* [MS-OSHARED] 2.3.7.2 HyperlinkMoniker TODO: all the monikers */
  function parse_HyperlinkMoniker(blob, length) {
  	var clsid = blob.read_shift(16); length -= 16;
  	switch(clsid) {
  		case "e0c9ea79f9bace118c8200aa004ba90b": return parse_URLMoniker(blob, length);
  		case "0303000000000000c000000000000046": return parse_FileMoniker(blob, length);
  		default: throw new Error("Unsupported Moniker " + clsid);
  	}
  }
  
  /* [MS-OSHARED] 2.3.7.9 HyperlinkString */
  function parse_HyperlinkString(blob) {
  	var len = blob.read_shift(4);
  	var o = len > 0 ? blob.read_shift(len, 'utf16le').replace(chr0, "") : "";
  	return o;
  }
  
  /* [MS-OSHARED] 2.3.7.1 Hyperlink Object */
  function parse_Hyperlink(blob, length) {
  	var end = blob.l + length;
  	var sVer = blob.read_shift(4);
  	if(sVer !== 2) throw new Error("Unrecognized streamVersion: " + sVer);
  	var flags = blob.read_shift(2);
  	blob.l += 2;
  	var displayName, targetFrameName, moniker, oleMoniker, Loc="", guid, fileTime;
  	if(flags & 0x0010) displayName = parse_HyperlinkString(blob, end - blob.l);
  	if(flags & 0x0080) targetFrameName = parse_HyperlinkString(blob, end - blob.l);
  	if((flags & 0x0101) === 0x0101) moniker = parse_HyperlinkString(blob, end - blob.l);
  	if((flags & 0x0101) === 0x0001) oleMoniker = parse_HyperlinkMoniker(blob, end - blob.l);
  	if(flags & 0x0008) Loc = parse_HyperlinkString(blob, end - blob.l);
  	if(flags & 0x0020) guid = blob.read_shift(16);
  	if(flags & 0x0040) fileTime = parse_FILETIME(blob/*, 8*/);
  	blob.l = end;
  	var target = targetFrameName||moniker||oleMoniker||"";
  	if(target && Loc) target+="#"+Loc;
  	if(!target) target = "#" + Loc;
  	var out = ({Target:target});
  	if(guid) out.guid = guid;
  	if(fileTime) out.time = fileTime;
  	if(displayName) out.Tooltip = displayName;
  	return out;
  }
  function write_Hyperlink(hl) {
  	var out = new_buf(512), i = 0;
  	var Target = hl.Target;
  	var F = Target.indexOf("#") > -1 ? 0x1f : 0x17;
  	switch(Target.charAt(0)) { case "#": F=0x1c; break; case ".": F&=~2; break; }
  	out.write_shift(4,2); out.write_shift(4, F);
  	var data = [8,6815827,6619237,4849780,83]; for(i = 0; i < data.length; ++i) out.write_shift(4, data[i]);
  	if(F == 0x1C) {
  		Target = Target.slice(1);
  		out.write_shift(4, Target.length + 1);
  		for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
  		out.write_shift(2, 0);
  	} else if(F & 0x02) {
  		data = "e0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" ");
  		for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
  		out.write_shift(4, 2*(Target.length + 1));
  		for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
  		out.write_shift(2, 0);
  	} else {
  		data = "03 03 00 00 00 00 00 00 c0 00 00 00 00 00 00 46".split(" ");
  		for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
  		var P = 0;
  		while(Target.slice(P*3,P*3+3)=="../"||Target.slice(P*3,P*3+3)=="..\\") ++P;
  		out.write_shift(2, P);
  		out.write_shift(4, Target.length + 1);
  		for(i = 0; i < Target.length; ++i) out.write_shift(1, Target.charCodeAt(i) & 0xFF);
  		out.write_shift(1, 0);
  		out.write_shift(2, 0xFFFF);
  		out.write_shift(2, 0xDEAD);
  		for(i = 0; i < 6; ++i) out.write_shift(4, 0);
  	}
  	return out.slice(0, out.l);
  }
  
  /* 2.5.178 LongRGBA */
  function parse_LongRGBA(blob) { var r = blob.read_shift(1), g = blob.read_shift(1), b = blob.read_shift(1), a = blob.read_shift(1); return [r,g,b,a]; }
  
  /* 2.5.177 LongRGB */
  function parse_LongRGB(blob, length) { var x = parse_LongRGBA(blob, length); x[3] = 0; return x; }
  
  
  /* [MS-XLS] 2.5.19 */
  function parse_XLSCell(blob) {
  	var rw = blob.read_shift(2); // 0-indexed
  	var col = blob.read_shift(2);
  	var ixfe = blob.read_shift(2);
  	return ({r:rw, c:col, ixfe:ixfe});
  }
  function write_XLSCell(R, C, ixfe, o) {
  	if(!o) o = new_buf(6);
  	o.write_shift(2, R);
  	o.write_shift(2, C);
  	o.write_shift(2, ixfe||0);
  	return o;
  }
  
  /* [MS-XLS] 2.5.134 */
  function parse_frtHeader(blob) {
  	var rt = blob.read_shift(2);
  	var flags = blob.read_shift(2); // TODO: parse these flags
  	blob.l += 8;
  	return {type: rt, flags: flags};
  }
  
  
  
  function parse_OptXLUnicodeString(blob, length, opts) { return length === 0 ? "" : parse_XLUnicodeString2(blob, length, opts); }
  
  /* [MS-XLS] 2.5.344 */
  function parse_XTI(blob, length, opts) {
  	var w = opts.biff > 8 ? 4 : 2;
  	var iSupBook = blob.read_shift(w), itabFirst = blob.read_shift(w,'i'), itabLast = blob.read_shift(w,'i');
  	return [iSupBook, itabFirst, itabLast];
  }
  
  /* [MS-XLS] 2.5.218 */
  function parse_RkRec(blob) {
  	var ixfe = blob.read_shift(2);
  	var RK = parse_RkNumber(blob);
  	return [ixfe, RK];
  }
  
  /* [MS-XLS] 2.5.1 */
  function parse_AddinUdf(blob, length, opts) {
  	blob.l += 4; length -= 4;
  	var l = blob.l + length;
  	var udfName = parse_ShortXLUnicodeString(blob, length, opts);
  	var cb = blob.read_shift(2);
  	l -= blob.l;
  	if(cb !== l) throw new Error("Malformed AddinUdf: padding = " + l + " != " + cb);
  	blob.l += cb;
  	return udfName;
  }
  
  /* [MS-XLS] 2.5.209 TODO: Check sizes */
  function parse_Ref8U(blob) {
  	var rwFirst = blob.read_shift(2);
  	var rwLast = blob.read_shift(2);
  	var colFirst = blob.read_shift(2);
  	var colLast = blob.read_shift(2);
  	return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
  }
  function write_Ref8U(r, o) {
  	if(!o) o = new_buf(8);
  	o.write_shift(2, r.s.r);
  	o.write_shift(2, r.e.r);
  	o.write_shift(2, r.s.c);
  	o.write_shift(2, r.e.c);
  	return o;
  }
  
  /* [MS-XLS] 2.5.211 */
  function parse_RefU(blob) {
  	var rwFirst = blob.read_shift(2);
  	var rwLast = blob.read_shift(2);
  	var colFirst = blob.read_shift(1);
  	var colLast = blob.read_shift(1);
  	return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
  }
  
  /* [MS-XLS] 2.5.207 */
  var parse_Ref = parse_RefU;
  
  /* [MS-XLS] 2.5.143 */
  function parse_FtCmo(blob) {
  	blob.l += 4;
  	var ot = blob.read_shift(2);
  	var id = blob.read_shift(2);
  	var flags = blob.read_shift(2);
  	blob.l+=12;
  	return [id, ot, flags];
  }
  
  /* [MS-XLS] 2.5.149 */
  function parse_FtNts(blob) {
  	var out = {};
  	blob.l += 4;
  	blob.l += 16; // GUID TODO
  	out.fSharedNote = blob.read_shift(2);
  	blob.l += 4;
  	return out;
  }
  
  /* [MS-XLS] 2.5.142 */
  function parse_FtCf(blob) {
  	var out = {};
  	blob.l += 4;
  	blob.cf = blob.read_shift(2);
  	return out;
  }
  
  /* [MS-XLS] 2.5.140 - 2.5.154 and friends */
  function parse_FtSkip(blob) { blob.l += 2; blob.l += blob.read_shift(2); }
  var FtTab = {
  0x00: parse_FtSkip,      /* FtEnd */
  0x04: parse_FtSkip,      /* FtMacro */
  0x05: parse_FtSkip,      /* FtButton */
  0x06: parse_FtSkip,      /* FtGmo */
  0x07: parse_FtCf,        /* FtCf */
  0x08: parse_FtSkip,      /* FtPioGrbit */
  0x09: parse_FtSkip,      /* FtPictFmla */
  0x0A: parse_FtSkip,      /* FtCbls */
  0x0B: parse_FtSkip,      /* FtRbo */
  0x0C: parse_FtSkip,      /* FtSbs */
  0x0D: parse_FtNts,       /* FtNts */
  0x0E: parse_FtSkip,      /* FtSbsFmla */
  0x0F: parse_FtSkip,      /* FtGboData */
  0x10: parse_FtSkip,      /* FtEdoData */
  0x11: parse_FtSkip,      /* FtRboData */
  0x12: parse_FtSkip,      /* FtCblsData */
  0x13: parse_FtSkip,      /* FtLbsData */
  0x14: parse_FtSkip,      /* FtCblsFmla */
  0x15: parse_FtCmo
  };
  function parse_FtArray(blob, length) {
  	var tgt = blob.l + length;
  	var fts = [];
  	while(blob.l < tgt) {
  		var ft = blob.read_shift(2);
  		blob.l-=2;
  		try {
  			fts.push(FtTab[ft](blob, tgt - blob.l));
  		} catch(e) { blob.l = tgt; return fts; }
  	}
  	if(blob.l != tgt) blob.l = tgt; //throw new Error("bad Object Ft-sequence");
  	return fts;
  }
  
  /* --- 2.4 Records --- */
  
  /* [MS-XLS] 2.4.21 */
  function parse_BOF(blob, length) {
  	var o = {BIFFVer:0, dt:0};
  	o.BIFFVer = blob.read_shift(2); length -= 2;
  	if(length >= 2) { o.dt = blob.read_shift(2); blob.l -= 2; }
  	switch(o.BIFFVer) {
  		case 0x0600: /* BIFF8 */
  		case 0x0500: /* BIFF5 */
  		case 0x0400: /* BIFF4 */
  		case 0x0300: /* BIFF3 */
  		case 0x0200: /* BIFF2 */
  		case 0x0002: case 0x0007: /* BIFF2 */
  			break;
  		default: if(length > 6) throw new Error("Unexpected BIFF Ver " + o.BIFFVer);
  	}
  
  	blob.read_shift(length);
  	return o;
  }
  function write_BOF(wb, t, o) {
  	var h = 0x0600, w = 16;
  	switch(o.bookType) {
  		case 'biff8': break;
  		case 'biff5': h = 0x0500; w = 8; break;
  		case 'biff4': h = 0x0004; w = 6; break;
  		case 'biff3': h = 0x0003; w = 6; break;
  		case 'biff2': h = 0x0002; w = 4; break;
  		case 'xla': break;
  		default: throw new Error("unsupported BIFF version");
  	}
  	var out = new_buf(w);
  	out.write_shift(2, h);
  	out.write_shift(2, t);
  	if(w > 4) out.write_shift(2, 0x7262);
  	if(w > 6) out.write_shift(2, 0x07CD);
  	if(w > 8) {
  		out.write_shift(2, 0xC009);
  		out.write_shift(2, 0x0001);
  		out.write_shift(2, 0x0706);
  		out.write_shift(2, 0x0000);
  	}
  	return out;
  }
  
  
  /* [MS-XLS] 2.4.146 */
  function parse_InterfaceHdr(blob, length) {
  	if(length === 0) return 0x04b0;
  	if((blob.read_shift(2))!==0x04b0){/* empty */}
  	return 0x04b0;
  }
  
  
  /* [MS-XLS] 2.4.349 */
  function parse_WriteAccess(blob, length, opts) {
  	if(opts.enc) { blob.l += length; return ""; }
  	var l = blob.l;
  	// TODO: make sure XLUnicodeString doesnt overrun
  	var UserName = parse_XLUnicodeString2(blob, 0, opts);
  	blob.read_shift(length + l - blob.l);
  	return UserName;
  }
  function write_WriteAccess(s, opts) {
  	var b8 = !opts || opts.biff == 8;
  	var o = new_buf(b8 ? 112 : 54);
  	o.write_shift(opts.biff == 8 ? 2 : 1, 7);
  	if(b8) o.write_shift(1, 0);
  	o.write_shift(4, 0x33336853);
  	o.write_shift(4, (0x00534A74 | (b8 ? 0 : 0x20000000)));
  	while(o.l < o.length) o.write_shift(1, (b8 ? 0 : 32));
  	return o;
  }
  
  /* [MS-XLS] 2.4.351 */
  function parse_WsBool(blob, length, opts) {
  	var flags = opts && opts.biff == 8 || length == 2 ? blob.read_shift(2) : (blob.l += length, 0);
  	return { fDialog: flags & 0x10 };
  }
  
  /* [MS-XLS] 2.4.28 */
  function parse_BoundSheet8(blob, length, opts) {
  	var pos = blob.read_shift(4);
  	var hidden = blob.read_shift(1) & 0x03;
  	var dt = blob.read_shift(1);
  	switch(dt) {
  		case 0: dt = 'Worksheet'; break;
  		case 1: dt = 'Macrosheet'; break;
  		case 2: dt = 'Chartsheet'; break;
  		case 6: dt = 'VBAModule'; break;
  	}
  	var name = parse_ShortXLUnicodeString(blob, 0, opts);
  	if(name.length === 0) name = "Sheet1";
  	return { pos:pos, hs:hidden, dt:dt, name:name };
  }
  function write_BoundSheet8(data, opts) {
  	var w = (!opts || opts.biff >= 8 ? 2 : 1);
  	var o = new_buf(8 + w * data.name.length);
  	o.write_shift(4, data.pos);
  	o.write_shift(1, data.hs || 0);
  	o.write_shift(1, data.dt);
  	o.write_shift(1, data.name.length);
  	if(opts.biff >= 8) o.write_shift(1, 1);
  	o.write_shift(w * data.name.length, data.name, opts.biff < 8 ? 'sbcs' : 'utf16le');
  	var out = o.slice(0, o.l);
  	out.l = o.l; return out;
  }
  
  /* [MS-XLS] 2.4.265 TODO */
  function parse_SST(blob, length) {
  	var end = blob.l + length;
  	var cnt = blob.read_shift(4);
  	var ucnt = blob.read_shift(4);
  	var strs = ([]);
  	for(var i = 0; i != ucnt && blob.l < end; ++i) {
  		strs.push(parse_XLUnicodeRichExtendedString(blob));
  	}
  	strs.Count = cnt; strs.Unique = ucnt;
  	return strs;
  }
  
  /* [MS-XLS] 2.4.107 */
  function parse_ExtSST(blob, length) {
  	var extsst = {};
  	extsst.dsst = blob.read_shift(2);
  	blob.l += length-2;
  	return extsst;
  }
  
  
  /* [MS-XLS] 2.4.221 TODO: check BIFF2-4 */
  function parse_Row(blob) {
  	var z = ({});
  	z.r = blob.read_shift(2);
  	z.c = blob.read_shift(2);
  	z.cnt = blob.read_shift(2) - z.c;
  	var miyRw = blob.read_shift(2);
  	blob.l += 4; // reserved(2), unused(2)
  	var flags = blob.read_shift(1); // various flags
  	blob.l += 3; // reserved(8), ixfe(12), flags(4)
  	if(flags & 0x07) z.level = flags & 0x07;
  	// collapsed: flags & 0x10
  	if(flags & 0x20) z.hidden = true;
  	if(flags & 0x40) z.hpt = miyRw / 20;
  	return z;
  }
  
  
  /* [MS-XLS] 2.4.125 */
  function parse_ForceFullCalculation(blob) {
  	var header = parse_frtHeader(blob);
  	if(header.type != 0x08A3) throw new Error("Invalid Future Record " + header.type);
  	var fullcalc = blob.read_shift(4);
  	return fullcalc !== 0x0;
  }
  
  
  
  
  
  /* [MS-XLS] 2.4.215 rt */
  function parse_RecalcId(blob) {
  	blob.read_shift(2);
  	return blob.read_shift(4);
  }
  
  /* [MS-XLS] 2.4.87 */
  function parse_DefaultRowHeight(blob, length, opts) {
  	var f = 0;
  	if(!(opts && opts.biff == 2)) {
  		f = blob.read_shift(2);
  	}
  	var miyRw = blob.read_shift(2);
  	if((opts && opts.biff == 2)) {
  		f = 1 - (miyRw >> 15); miyRw &= 0x7fff;
  	}
  	var fl = {Unsynced:f&1,DyZero:(f&2)>>1,ExAsc:(f&4)>>2,ExDsc:(f&8)>>3};
  	return [fl, miyRw];
  }
  
  /* [MS-XLS] 2.4.345 TODO */
  function parse_Window1(blob) {
  	var xWn = blob.read_shift(2), yWn = blob.read_shift(2), dxWn = blob.read_shift(2), dyWn = blob.read_shift(2);
  	var flags = blob.read_shift(2), iTabCur = blob.read_shift(2), iTabFirst = blob.read_shift(2);
  	var ctabSel = blob.read_shift(2), wTabRatio = blob.read_shift(2);
  	return { Pos: [xWn, yWn], Dim: [dxWn, dyWn], Flags: flags, CurTab: iTabCur,
  		FirstTab: iTabFirst, Selected: ctabSel, TabRatio: wTabRatio };
  }
  function write_Window1() {
  	var o = new_buf(18);
  	o.write_shift(2, 0);
  	o.write_shift(2, 0);
  	o.write_shift(2, 0x7260);
  	o.write_shift(2, 0x44c0);
  	o.write_shift(2, 0x38);
  	o.write_shift(2, 0);
  	o.write_shift(2, 0);
  	o.write_shift(2, 1);
  	o.write_shift(2, 0x01f4);
  	return o;
  }
  /* [MS-XLS] 2.4.346 TODO */
  function parse_Window2(blob, length, opts) {
  	if(opts && opts.biff >= 2 && opts.biff < 8) return {};
  	var f = blob.read_shift(2);
  	return { RTL: f & 0x40 };
  }
  function write_Window2(view) {
  	var o = new_buf(18), f = 0x6b6;
  	if(view && view.RTL) f |= 0x40;
  	o.write_shift(2, f);
  	o.write_shift(4, 0);
  	o.write_shift(4, 64);
  	o.write_shift(4, 0);
  	o.write_shift(4, 0);
  	return o;
  }
  
  /* [MS-XLS] 2.4.122 TODO */
  function parse_Font(blob, length, opts) {
  	var o = {
  		dyHeight: blob.read_shift(2),
  		fl: blob.read_shift(2)
  	};
  	switch((opts && opts.biff) || 8) {
  		case 2: break;
  		case 3: case 4: blob.l += 2; break;
  		default: blob.l += 10; break;
  	}
  	o.name = parse_ShortXLUnicodeString(blob, 0, opts);
  	return o;
  }
  function write_Font(data, opts) {
  	var name = data.name || "Arial";
  	var b5 = (opts && (opts.biff == 5)), w = (b5 ? (15 + name.length) : (16 + 2 * name.length));
  	var o = new_buf(w);
  	o.write_shift(2, (data.sz || 12) * 20);
  	o.write_shift(4, 0);
  	o.write_shift(2, 400);
  	o.write_shift(4, 0);
  	o.write_shift(2, 0);
  	o.write_shift(1, name.length);
  	if(!b5) o.write_shift(1, 1);
  	o.write_shift((b5 ? 1 : 2) * name.length, name, (b5 ? "sbcs" : "utf16le"));
  	return o;
  }
  
  /* [MS-XLS] 2.4.149 */
  function parse_LabelSst(blob) {
  	var cell = parse_XLSCell(blob);
  	cell.isst = blob.read_shift(4);
  	return cell;
  }
  
  /* [MS-XLS] 2.4.148 */
  function parse_Label(blob, length, opts) {
  	var target = blob.l + length;
  	var cell = parse_XLSCell(blob, 6);
  	if(opts.biff == 2) blob.l++;
  	var str = parse_XLUnicodeString(blob, target - blob.l, opts);
  	cell.val = str;
  	return cell;
  }
  function write_Label(R, C, v, os, opts) {
  	var b8 = !opts || opts.biff == 8;
  	var o = new_buf(6 + 2 + (+b8) + (1 + b8) * v.length);
  	write_XLSCell(R, C, os, o);
  	o.write_shift(2, v.length);
  	if(b8) o.write_shift(1, 1);
  	o.write_shift((1 + b8) * v.length, v, b8 ? 'utf16le' : 'sbcs');
  	return o;
  }
  
  
  /* [MS-XLS] 2.4.126 Number Formats */
  function parse_Format(blob, length, opts) {
  	var numFmtId = blob.read_shift(2);
  	var fmtstr = parse_XLUnicodeString2(blob, 0, opts);
  	return [numFmtId, fmtstr];
  }
  function write_Format(i, f, opts, o) {
  	var b5 = (opts && (opts.biff == 5));
  	if(!o) o = new_buf(b5 ? (3 + f.length) : (5 + 2 * f.length));
  	o.write_shift(2, i);
  	o.write_shift((b5 ? 1 : 2), f.length);
  	if(!b5) o.write_shift(1, 1);
  	o.write_shift((b5 ? 1 : 2) * f.length, f, (b5 ? 'sbcs' : 'utf16le'));
  	var out = (o.length > o.l) ? o.slice(0, o.l) : o;
  	if(out.l == null) out.l = out.length;
  	return out;
  }
  var parse_BIFF2Format = parse_XLUnicodeString2;
  
  /* [MS-XLS] 2.4.90 */
  function parse_Dimensions(blob, length, opts) {
  	var end = blob.l + length;
  	var w = opts.biff == 8 || !opts.biff ? 4 : 2;
  	var r = blob.read_shift(w), R = blob.read_shift(w);
  	var c = blob.read_shift(2), C = blob.read_shift(2);
  	blob.l = end;
  	return {s: {r:r, c:c}, e: {r:R, c:C}};
  }
  function write_Dimensions(range, opts) {
  	var w = opts.biff == 8 || !opts.biff ? 4 : 2;
  	var o = new_buf(2*w + 6);
  	o.write_shift(w, range.s.r);
  	o.write_shift(w, range.e.r + 1);
  	o.write_shift(2, range.s.c);
  	o.write_shift(2, range.e.c + 1);
  	o.write_shift(2, 0);
  	return o;
  }
  
  /* [MS-XLS] 2.4.220 */
  function parse_RK(blob) {
  	var rw = blob.read_shift(2), col = blob.read_shift(2);
  	var rkrec = parse_RkRec(blob);
  	return {r:rw, c:col, ixfe:rkrec[0], rknum:rkrec[1]};
  }
  
  /* [MS-XLS] 2.4.175 */
  function parse_MulRk(blob, length) {
  	var target = blob.l + length - 2;
  	var rw = blob.read_shift(2), col = blob.read_shift(2);
  	var rkrecs = [];
  	while(blob.l < target) rkrecs.push(parse_RkRec(blob));
  	if(blob.l !== target) throw new Error("MulRK read error");
  	var lastcol = blob.read_shift(2);
  	if(rkrecs.length != lastcol - col + 1) throw new Error("MulRK length mismatch");
  	return {r:rw, c:col, C:lastcol, rkrec:rkrecs};
  }
  /* [MS-XLS] 2.4.174 */
  function parse_MulBlank(blob, length) {
  	var target = blob.l + length - 2;
  	var rw = blob.read_shift(2), col = blob.read_shift(2);
  	var ixfes = [];
  	while(blob.l < target) ixfes.push(blob.read_shift(2));
  	if(blob.l !== target) throw new Error("MulBlank read error");
  	var lastcol = blob.read_shift(2);
  	if(ixfes.length != lastcol - col + 1) throw new Error("MulBlank length mismatch");
  	return {r:rw, c:col, C:lastcol, ixfe:ixfes};
  }
  
  /* [MS-XLS] 2.5.20 2.5.249 TODO: interpret values here */
  function parse_CellStyleXF(blob, length, style, opts) {
  	var o = {};
  	var a = blob.read_shift(4), b = blob.read_shift(4);
  	var c = blob.read_shift(4), d = blob.read_shift(2);
  	o.patternType = XLSFillPattern[c >> 26];
  
  	if(!opts.cellStyles) return o;
  	o.alc = a & 0x07;
  	o.fWrap = (a >> 3) & 0x01;
  	o.alcV = (a >> 4) & 0x07;
  	o.fJustLast = (a >> 7) & 0x01;
  	o.trot = (a >> 8) & 0xFF;
  	o.cIndent = (a >> 16) & 0x0F;
  	o.fShrinkToFit = (a >> 20) & 0x01;
  	o.iReadOrder = (a >> 22) & 0x02;
  	o.fAtrNum = (a >> 26) & 0x01;
  	o.fAtrFnt = (a >> 27) & 0x01;
  	o.fAtrAlc = (a >> 28) & 0x01;
  	o.fAtrBdr = (a >> 29) & 0x01;
  	o.fAtrPat = (a >> 30) & 0x01;
  	o.fAtrProt = (a >> 31) & 0x01;
  
  	o.dgLeft = b & 0x0F;
  	o.dgRight = (b >> 4) & 0x0F;
  	o.dgTop = (b >> 8) & 0x0F;
  	o.dgBottom = (b >> 12) & 0x0F;
  	o.icvLeft = (b >> 16) & 0x7F;
  	o.icvRight = (b >> 23) & 0x7F;
  	o.grbitDiag = (b >> 30) & 0x03;
  
  	o.icvTop = c & 0x7F;
  	o.icvBottom = (c >> 7) & 0x7F;
  	o.icvDiag = (c >> 14) & 0x7F;
  	o.dgDiag = (c >> 21) & 0x0F;
  
  	o.icvFore = d & 0x7F;
  	o.icvBack = (d >> 7) & 0x7F;
  	o.fsxButton = (d >> 14) & 0x01;
  	return o;
  }
  //function parse_CellXF(blob, length, opts) {return parse_CellStyleXF(blob,length,0, opts);}
  //function parse_StyleXF(blob, length, opts) {return parse_CellStyleXF(blob,length,1, opts);}
  
  /* [MS-XLS] 2.4.353 TODO: actually do this right */
  function parse_XF(blob, length, opts) {
  	var o = {};
  	o.ifnt = blob.read_shift(2); o.numFmtId = blob.read_shift(2); o.flags = blob.read_shift(2);
  	o.fStyle = (o.flags >> 2) & 0x01;
  	length -= 6;
  	o.data = parse_CellStyleXF(blob, length, o.fStyle, opts);
  	return o;
  }
  function write_XF(data, ixfeP, opts, o) {
  	var b5 = (opts && (opts.biff == 5));
  	if(!o) o = new_buf(b5 ? 16 : 20);
  	o.write_shift(2, 0);
  	if(data.style) {
  		o.write_shift(2, (data.numFmtId||0));
  		o.write_shift(2, 0xFFF4);
  	} else {
  		o.write_shift(2, (data.numFmtId||0));
  		o.write_shift(2, (ixfeP<<4));
  	}
  	o.write_shift(4, 0);
  	o.write_shift(4, 0);
  	if(!b5) o.write_shift(4, 0);
  	o.write_shift(2, 0);
  	return o;
  }
  
  /* [MS-XLS] 2.4.134 */
  function parse_Guts(blob) {
  	blob.l += 4;
  	var out = [blob.read_shift(2), blob.read_shift(2)];
  	if(out[0] !== 0) out[0]--;
  	if(out[1] !== 0) out[1]--;
  	if(out[0] > 7 || out[1] > 7) throw new Error("Bad Gutters: " + out.join("|"));
  	return out;
  }
  function write_Guts(guts) {
  	var o = new_buf(8);
  	o.write_shift(4, 0);
  	o.write_shift(2, guts[0] ? guts[0] + 1 : 0);
  	o.write_shift(2, guts[1] ? guts[1] + 1 : 0);
  	return o;
  }
  
  /* [MS-XLS] 2.4.24 */
  function parse_BoolErr(blob, length, opts) {
  	var cell = parse_XLSCell(blob, 6);
  	if(opts.biff == 2) ++blob.l;
  	var val = parse_Bes(blob, 2);
  	cell.val = val;
  	cell.t = (val === true || val === false) ? 'b' : 'e';
  	return cell;
  }
  function write_BoolErr(R, C, v, os, opts, t) {
  	var o = new_buf(8);
  	write_XLSCell(R, C, os, o);
  	write_Bes(v, t, o);
  	return o;
  }
  
  /* [MS-XLS] 2.4.180 Number */
  function parse_Number(blob) {
  	var cell = parse_XLSCell(blob, 6);
  	var xnum = parse_Xnum(blob, 8);
  	cell.val = xnum;
  	return cell;
  }
  function write_Number(R, C, v, os) {
  	var o = new_buf(14);
  	write_XLSCell(R, C, os, o);
  	write_Xnum(v, o);
  	return o;
  }
  
  var parse_XLHeaderFooter = parse_OptXLUnicodeString; // TODO: parse 2.4.136
  
  /* [MS-XLS] 2.4.271 */
  function parse_SupBook(blob, length, opts) {
  	var end = blob.l + length;
  	var ctab = blob.read_shift(2);
  	var cch = blob.read_shift(2);
  	opts.sbcch = cch;
  	if(cch == 0x0401 || cch == 0x3A01) return [cch, ctab];
  	if(cch < 0x01 || cch >0xff) throw new Error("Unexpected SupBook type: "+cch);
  	var virtPath = parse_XLUnicodeStringNoCch(blob, cch);
  	/* TODO: 2.5.277 Virtual Path */
  	var rgst = [];
  	while(end > blob.l) rgst.push(parse_XLUnicodeString(blob));
  	return [cch, ctab, virtPath, rgst];
  }
  
  /* [MS-XLS] 2.4.105 TODO */
  function parse_ExternName(blob, length, opts) {
  	var flags = blob.read_shift(2);
  	var body;
  	var o = ({
  		fBuiltIn: flags & 0x01,
  		fWantAdvise: (flags >>> 1) & 0x01,
  		fWantPict: (flags >>> 2) & 0x01,
  		fOle: (flags >>> 3) & 0x01,
  		fOleLink: (flags >>> 4) & 0x01,
  		cf: (flags >>> 5) & 0x3FF,
  		fIcon: flags >>> 15 & 0x01
  	});
  	if(opts.sbcch === 0x3A01) body = parse_AddinUdf(blob, length-2, opts);
  	//else throw new Error("unsupported SupBook cch: " + opts.sbcch);
  	o.body = body || blob.read_shift(length-2);
  	if(typeof body === "string") o.Name = body;
  	return o;
  }
  
  /* [MS-XLS] 2.4.150 TODO */
  var XLSLblBuiltIn = [
  	"_xlnm.Consolidate_Area",
  	"_xlnm.Auto_Open",
  	"_xlnm.Auto_Close",
  	"_xlnm.Extract",
  	"_xlnm.Database",
  	"_xlnm.Criteria",
  	"_xlnm.Print_Area",
  	"_xlnm.Print_Titles",
  	"_xlnm.Recorder",
  	"_xlnm.Data_Form",
  	"_xlnm.Auto_Activate",
  	"_xlnm.Auto_Deactivate",
  	"_xlnm.Sheet_Title",
  	"_xlnm._FilterDatabase"
  ];
  function parse_Lbl(blob, length, opts) {
  	var target = blob.l + length;
  	var flags = blob.read_shift(2);
  	var chKey = blob.read_shift(1);
  	var cch = blob.read_shift(1);
  	var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	var itab = 0;
  	if(!opts || opts.biff >= 5) {
  		if(opts.biff != 5) blob.l += 2;
  		itab = blob.read_shift(2);
  		if(opts.biff == 5) blob.l += 2;
  		blob.l += 4;
  	}
  	var name = parse_XLUnicodeStringNoCch(blob, cch, opts);
  	if(flags & 0x20) name = XLSLblBuiltIn[name.charCodeAt(0)];
  	var npflen = target - blob.l; if(opts && opts.biff == 2) --npflen;
  	var rgce = target == blob.l || cce === 0 ? [] : parse_NameParsedFormula(blob, npflen, opts, cce);
  	return {
  		chKey: chKey,
  		Name: name,
  		itab: itab,
  		rgce: rgce
  	};
  }
  
  /* [MS-XLS] 2.4.106 TODO: verify filename encoding */
  function parse_ExternSheet(blob, length, opts) {
  	if(opts.biff < 8) return parse_BIFF5ExternSheet(blob, length, opts);
  	var o = [], target = blob.l + length, len = blob.read_shift(opts.biff > 8 ? 4 : 2);
  	while(len-- !== 0) o.push(parse_XTI(blob, opts.biff > 8 ? 12 : 6, opts));
  		// [iSupBook, itabFirst, itabLast];
  	if(blob.l != target) throw new Error("Bad ExternSheet: " + blob.l + " != " + target);
  	return o;
  }
  function parse_BIFF5ExternSheet(blob, length, opts) {
  	if(blob[blob.l + 1] == 0x03) blob[blob.l]++;
  	var o = parse_ShortXLUnicodeString(blob, length, opts);
  	return o.charCodeAt(0) == 0x03 ? o.slice(1) : o;
  }
  
  /* [MS-XLS] 2.4.176 TODO: check older biff */
  function parse_NameCmt(blob, length, opts) {
  	if(opts.biff < 8) { blob.l += length; return; }
  	var cchName = blob.read_shift(2);
  	var cchComment = blob.read_shift(2);
  	var name = parse_XLUnicodeStringNoCch(blob, cchName, opts);
  	var comment = parse_XLUnicodeStringNoCch(blob, cchComment, opts);
  	return [name, comment];
  }
  
  /* [MS-XLS] 2.4.260 */
  function parse_ShrFmla(blob, length, opts) {
  	var ref = parse_RefU(blob, 6);
  	blob.l++;
  	var cUse = blob.read_shift(1);
  	length -= 8;
  	return [parse_SharedParsedFormula(blob, length, opts), cUse, ref];
  }
  
  /* [MS-XLS] 2.4.4 TODO */
  function parse_Array(blob, length, opts) {
  	var ref = parse_Ref(blob, 6);
  	/* TODO: fAlwaysCalc */
  	switch(opts.biff) {
  		case 2: blob.l ++; length -= 7; break;
  		case 3: case 4: blob.l += 2; length -= 8; break;
  		default: blob.l += 6; length -= 12;
  	}
  	return [ref, parse_ArrayParsedFormula(blob, length, opts, ref)];
  }
  
  /* [MS-XLS] 2.4.173 */
  function parse_MTRSettings(blob) {
  	var fMTREnabled = blob.read_shift(4) !== 0x00;
  	var fUserSetThreadCount = blob.read_shift(4) !== 0x00;
  	var cUserThreadCount = blob.read_shift(4);
  	return [fMTREnabled, fUserSetThreadCount, cUserThreadCount];
  }
  
  /* [MS-XLS] 2.5.186 TODO: BIFF5 */
  function parse_NoteSh(blob, length, opts) {
  	if(opts.biff < 8) return;
  	var row = blob.read_shift(2), col = blob.read_shift(2);
  	var flags = blob.read_shift(2), idObj = blob.read_shift(2);
  	var stAuthor = parse_XLUnicodeString2(blob, 0, opts);
  	if(opts.biff < 8) blob.read_shift(1);
  	return [{r:row,c:col}, stAuthor, idObj, flags];
  }
  
  /* [MS-XLS] 2.4.179 */
  function parse_Note(blob, length, opts) {
  	/* TODO: Support revisions */
  	return parse_NoteSh(blob, length, opts);
  }
  
  /* [MS-XLS] 2.4.168 */
  function parse_MergeCells(blob, length) {
  	var merges = [];
  	var cmcs = blob.read_shift(2);
  	while (cmcs--) merges.push(parse_Ref8U(blob,length));
  	return merges;
  }
  function write_MergeCells(merges) {
  	var o = new_buf(2 + merges.length * 8);
  	o.write_shift(2, merges.length);
  	for(var i = 0; i < merges.length; ++i) write_Ref8U(merges[i], o);
  	return o;
  }
  
  /* [MS-XLS] 2.4.181 TODO: parse all the things! */
  function parse_Obj(blob, length, opts) {
  	if(opts && opts.biff < 8) return parse_BIFF5Obj(blob, length, opts);
  	var cmo = parse_FtCmo(blob, 22); // id, ot, flags
  	var fts = parse_FtArray(blob, length-22, cmo[1]);
  	return { cmo: cmo, ft:fts };
  }
  /* from older spec */
  var parse_BIFF5OT = [];
  parse_BIFF5OT[0x08] = function(blob, length) {
  	var tgt = blob.l + length;
  	blob.l += 10; // todo
  	var cf = blob.read_shift(2);
  	blob.l += 4;
  	blob.l += 2; //var cbPictFmla = blob.read_shift(2);
  	blob.l += 2;
  	blob.l += 2; //var grbit = blob.read_shift(2);
  	blob.l += 4;
  	var cchName = blob.read_shift(1);
  	blob.l += cchName; // TODO: stName
  	blob.l = tgt; // TODO: fmla
  	return { fmt:cf };
  };
  
  function parse_BIFF5Obj(blob, length, opts) {
  	blob.l += 4; //var cnt = blob.read_shift(4);
  	var ot = blob.read_shift(2);
  	var id = blob.read_shift(2);
  	var grbit = blob.read_shift(2);
  	blob.l += 2; //var colL = blob.read_shift(2);
  	blob.l += 2; //var dxL = blob.read_shift(2);
  	blob.l += 2; //var rwT = blob.read_shift(2);
  	blob.l += 2; //var dyT = blob.read_shift(2);
  	blob.l += 2; //var colR = blob.read_shift(2);
  	blob.l += 2; //var dxR = blob.read_shift(2);
  	blob.l += 2; //var rwB = blob.read_shift(2);
  	blob.l += 2; //var dyB = blob.read_shift(2);
  	blob.l += 2; //var cbMacro = blob.read_shift(2);
  	blob.l += 6;
  	length -= 36;
  	var fts = [];
  	fts.push((parse_BIFF5OT[ot]||parsenoop)(blob, length, opts));
  	return { cmo: [id, ot, grbit], ft:fts };
  }
  
  /* [MS-XLS] 2.4.329 TODO: parse properly */
  function parse_TxO(blob, length, opts) {
  	var s = blob.l;
  	var texts = "";
  try {
  	blob.l += 4;
  	var ot = (opts.lastobj||{cmo:[0,0]}).cmo[1];
  	var controlInfo; // eslint-disable-line no-unused-vars
  	if([0,5,7,11,12,14].indexOf(ot) == -1) blob.l += 6;
  	else controlInfo = parse_ControlInfo(blob, 6, opts);
  	var cchText = blob.read_shift(2);
  	/*var cbRuns = */blob.read_shift(2);
  	/*var ifntEmpty = */parseuint16(blob, 2);
  	var len = blob.read_shift(2);
  	blob.l += len;
  	//var fmla = parse_ObjFmla(blob, s + length - blob.l);
  
  	for(var i = 1; i < blob.lens.length-1; ++i) {
  		if(blob.l-s != blob.lens[i]) throw new Error("TxO: bad continue record");
  		var hdr = blob[blob.l];
  		var t = parse_XLUnicodeStringNoCch(blob, blob.lens[i+1]-blob.lens[i]-1);
  		texts += t;
  		if(texts.length >= (hdr ? cchText : 2*cchText)) break;
  	}
  	if(texts.length !== cchText && texts.length !== cchText*2) {
  		throw new Error("cchText: " + cchText + " != " + texts.length);
  	}
  
  	blob.l = s + length;
  	/* [MS-XLS] 2.5.272 TxORuns */
  //	var rgTxoRuns = [];
  //	for(var j = 0; j != cbRuns/8-1; ++j) blob.l += 8;
  //	var cchText2 = blob.read_shift(2);
  //	if(cchText2 !== cchText) throw new Error("TxOLastRun mismatch: " + cchText2 + " " + cchText);
  //	blob.l += 6;
  //	if(s + length != blob.l) throw new Error("TxO " + (s + length) + ", at " + blob.l);
  	return { t: texts };
  } catch(e) { blob.l = s + length; return { t: texts }; }
  }
  
  /* [MS-XLS] 2.4.140 */
  function parse_HLink(blob, length) {
  	var ref = parse_Ref8U(blob, 8);
  	blob.l += 16; /* CLSID */
  	var hlink = parse_Hyperlink(blob, length-24);
  	return [ref, hlink];
  }
  function write_HLink(hl) {
  	var O = new_buf(24);
  	var ref = decode_cell(hl[0]);
  	O.write_shift(2, ref.r); O.write_shift(2, ref.r);
  	O.write_shift(2, ref.c); O.write_shift(2, ref.c);
  	var clsid = "d0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" ");
  	for(var i = 0; i < 16; ++i) O.write_shift(1, parseInt(clsid[i], 16));
  	return bconcat([O, write_Hyperlink(hl[1])]);
  }
  
  
  /* [MS-XLS] 2.4.141 */
  function parse_HLinkTooltip(blob, length) {
  	blob.read_shift(2);
  	var ref = parse_Ref8U(blob, 8);
  	var wzTooltip = blob.read_shift((length-10)/2, 'dbcs-cont');
  	wzTooltip = wzTooltip.replace(chr0,"");
  	return [ref, wzTooltip];
  }
  function write_HLinkTooltip(hl) {
  	var TT = hl[1].Tooltip;
  	var O = new_buf(10 + 2 * (TT.length + 1));
  	O.write_shift(2, 0x0800);
  	var ref = decode_cell(hl[0]);
  	O.write_shift(2, ref.r); O.write_shift(2, ref.r);
  	O.write_shift(2, ref.c); O.write_shift(2, ref.c);
  	for(var i = 0; i < TT.length; ++i) O.write_shift(2, TT.charCodeAt(i));
  	O.write_shift(2, 0);
  	return O;
  }
  
  /* [MS-XLS] 2.4.63 */
  function parse_Country(blob) {
  	var o = [0,0], d;
  	d = blob.read_shift(2); o[0] = CountryEnum[d] || d;
  	d = blob.read_shift(2); o[1] = CountryEnum[d] || d;
  	return o;
  }
  function write_Country(o) {
  	if(!o) o = new_buf(4);
  	o.write_shift(2, 0x01);
  	o.write_shift(2, 0x01);
  	return o;
  }
  
  /* [MS-XLS] 2.4.50 ClrtClient */
  function parse_ClrtClient(blob) {
  	var ccv = blob.read_shift(2);
  	var o = [];
  	while(ccv-->0) o.push(parse_LongRGB(blob, 8));
  	return o;
  }
  
  /* [MS-XLS] 2.4.188 */
  function parse_Palette(blob) {
  	var ccv = blob.read_shift(2);
  	var o = [];
  	while(ccv-->0) o.push(parse_LongRGB(blob, 8));
  	return o;
  }
  
  /* [MS-XLS] 2.4.354 */
  function parse_XFCRC(blob) {
  	blob.l += 2;
  	var o = {cxfs:0, crc:0};
  	o.cxfs = blob.read_shift(2);
  	o.crc = blob.read_shift(4);
  	return o;
  }
  
  /* [MS-XLS] 2.4.53 TODO: parse flags */
  /* [MS-XLSB] 2.4.323 TODO: parse flags */
  function parse_ColInfo(blob, length, opts) {
  	if(!opts.cellStyles) return parsenoop(blob, length);
  	var w = opts && opts.biff >= 12 ? 4 : 2;
  	var colFirst = blob.read_shift(w);
  	var colLast = blob.read_shift(w);
  	var coldx = blob.read_shift(w);
  	var ixfe = blob.read_shift(w);
  	var flags = blob.read_shift(2);
  	if(w == 2) blob.l += 2;
  	return {s:colFirst, e:colLast, w:coldx, ixfe:ixfe, flags:flags};
  }
  
  /* [MS-XLS] 2.4.257 */
  function parse_Setup(blob, length) {
  	var o = {};
  	if(length < 32) return o;
  	blob.l += 16;
  	o.header = parse_Xnum(blob, 8);
  	o.footer = parse_Xnum(blob, 8);
  	blob.l += 2;
  	return o;
  }
  
  /* [MS-XLS] 2.4.261 */
  function parse_ShtProps(blob, length, opts) {
  	var def = {area:false};
  	if(opts.biff != 5) { blob.l += length; return def; }
  	var d = blob.read_shift(1); blob.l += 3;
  	if((d & 0x10)) def.area = true;
  	return def;
  }
  
  /* [MS-XLS] 2.4.241 */
  function write_RRTabId(n) {
  	var out = new_buf(2 * n);
  	for(var i = 0; i < n; ++i) out.write_shift(2, i+1);
  	return out;
  }
  
  var parse_Blank = parse_XLSCell; /* [MS-XLS] 2.4.20 Just the cell */
  var parse_Scl = parseuint16a; /* [MS-XLS] 2.4.247 num, den */
  var parse_String = parse_XLUnicodeString; /* [MS-XLS] 2.4.268 */
  
  /* --- Specific to versions before BIFF8 --- */
  function parse_ImData(blob) {
  	var cf = blob.read_shift(2);
  	var env = blob.read_shift(2);
  	var lcb = blob.read_shift(4);
  	var o = {fmt:cf, env:env, len:lcb, data:blob.slice(blob.l,blob.l+lcb)};
  	blob.l += lcb;
  	return o;
  }
  
  /* BIFF2_??? where ??? is the name from [XLS] */
  function parse_BIFF2STR(blob, length, opts) {
  	var cell = parse_XLSCell(blob, 6);
  	++blob.l;
  	var str = parse_XLUnicodeString2(blob, length-7, opts);
  	cell.t = 'str';
  	cell.val = str;
  	return cell;
  }
  
  function parse_BIFF2NUM(blob) {
  	var cell = parse_XLSCell(blob, 6);
  	++blob.l;
  	var num = parse_Xnum(blob, 8);
  	cell.t = 'n';
  	cell.val = num;
  	return cell;
  }
  function write_BIFF2NUM(r, c, val) {
  	var out = new_buf(15);
  	write_BIFF2Cell(out, r, c);
  	out.write_shift(8, val, 'f');
  	return out;
  }
  
  function parse_BIFF2INT(blob) {
  	var cell = parse_XLSCell(blob, 6);
  	++blob.l;
  	var num = blob.read_shift(2);
  	cell.t = 'n';
  	cell.val = num;
  	return cell;
  }
  function write_BIFF2INT(r, c, val) {
  	var out = new_buf(9);
  	write_BIFF2Cell(out, r, c);
  	out.write_shift(2, val);
  	return out;
  }
  
  function parse_BIFF2STRING(blob) {
  	var cch = blob.read_shift(1);
  	if(cch === 0) { blob.l++; return ""; }
  	return blob.read_shift(cch, 'sbcs-cont');
  }
  
  /* TODO: convert to BIFF8 font struct */
  function parse_BIFF2FONTXTRA(blob, length) {
  	blob.l += 6; // unknown
  	blob.l += 2; // font weight "bls"
  	blob.l += 1; // charset
  	blob.l += 3; // unknown
  	blob.l += 1; // font family
  	blob.l += length - 13;
  }
  
  /* TODO: parse rich text runs */
  function parse_RString(blob, length, opts) {
  	var end = blob.l + length;
  	var cell = parse_XLSCell(blob, 6);
  	var cch = blob.read_shift(2);
  	var str = parse_XLUnicodeStringNoCch(blob, cch, opts);
  	blob.l = end;
  	cell.t = 'str';
  	cell.val = str;
  	return cell;
  }
  /* from js-harb (C) 2014-present  SheetJS */
  var DBF = (function() {
  var dbf_codepage_map = {
  	/* Code Pages Supported by Visual FoxPro */
  0x01:   437,           0x02:   850,
  0x03:  1252,           0x04: 10000,
  0x64:   852,           0x65:   866,
  0x66:   865,           0x67:   861,
  0x68:   895,           0x69:   620,
  0x6A:   737,           0x6B:   857,
  0x78:   950,           0x79:   949,
  0x7A:   936,           0x7B:   932,
  0x7C:   874,           0x7D:  1255,
  0x7E:  1256,           0x96: 10007,
  0x97: 10029,           0x98: 10006,
  0xC8:  1250,           0xC9:  1251,
  0xCA:  1254,           0xCB:  1253,
  
  	/* shapefile DBF extension */
  0x00: 20127,           0x08:   865,
  0x09:   437,           0x0A:   850,
  0x0B:   437,           0x0D:   437,
  0x0E:   850,           0x0F:   437,
  0x10:   850,           0x11:   437,
  0x12:   850,           0x13:   932,
  0x14:   850,           0x15:   437,
  0x16:   850,           0x17:   865,
  0x18:   437,           0x19:   437,
  0x1A:   850,           0x1B:   437,
  0x1C:   863,           0x1D:   850,
  0x1F:   852,           0x22:   852,
  0x23:   852,           0x24:   860,
  0x25:   850,           0x26:   866,
  0x37:   850,           0x40:   852,
  0x4D:   936,           0x4E:   949,
  0x4F:   950,           0x50:   874,
  0x57:  1252,           0x58:  1252,
  0x59:  1252,
  
  0xFF: 16969
  };
  
  /* TODO: find an actual specification */
  function dbf_to_aoa(buf, opts) {
  	var out = [];
  	/* TODO: browser based */
  	var d = (new_raw_buf(1));
  	switch(opts.type) {
  		case 'base64': d = s2a(Base64.decode(buf)); break;
  		case 'binary': d = s2a(buf); break;
  		case 'buffer':
  		case 'array': d = buf; break;
  	}
  	prep_blob(d, 0);
  	/* header */
  	var ft = d.read_shift(1);
  	var memo = false;
  	var vfp = false, l7 = false;
  	switch(ft) {
  		case 0x02: case 0x03: break;
  		case 0x30: vfp = true; memo = true; break;
  		case 0x31: vfp = true; break;
  		case 0x83: memo = true; break;
  		case 0x8B: memo = true; break;
  		case 0x8C: memo = true; l7 = true; break;
  		case 0xF5: memo = true; break;
  		default: throw new Error("DBF Unsupported Version: " + ft.toString(16));
  	}
  	var /*filedate = new Date(),*/ nrow = 0, fpos = 0;
  	if(ft == 0x02) nrow = d.read_shift(2);
  	/*filedate = new Date(d.read_shift(1) + 1900, d.read_shift(1) - 1, d.read_shift(1));*/d.l += 3;
  	if(ft != 0x02) nrow = d.read_shift(4);
  	if(ft != 0x02) fpos = d.read_shift(2);
  	var rlen = d.read_shift(2);
  
  	var /*flags = 0,*/ current_cp = 1252;
  	if(ft != 0x02) {
  	d.l+=16;
  	/*flags = */d.read_shift(1);
  	//if(memo && ((flags & 0x02) === 0)) throw new Error("DBF Flags " + flags.toString(16) + " ft " + ft.toString(16));
  
  	/* codepage present in FoxPro */
  	if(d[d.l] !== 0) current_cp = dbf_codepage_map[d[d.l]];
  	d.l+=1;
  
  	d.l+=2;
  	}
  	if(l7) d.l += 36;
  var fields = [], field = ({});
  	var hend = fpos - 10 - (vfp ? 264 : 0), ww = l7 ? 32 : 11;
  	while(ft == 0x02 ? d.l < d.length && d[d.l] != 0x0d: d.l < hend) {
  		field = ({});
  		field.name = cptable.utils.decode(current_cp, d.slice(d.l, d.l+ww)).replace(/[\u0000\r\n].*$/g,"");
  		d.l += ww;
  		field.type = String.fromCharCode(d.read_shift(1));
  		if(ft != 0x02 && !l7) field.offset = d.read_shift(4);
  		field.len = d.read_shift(1);
  		if(ft == 0x02) field.offset = d.read_shift(2);
  		field.dec = d.read_shift(1);
  		if(field.name.length) fields.push(field);
  		if(ft != 0x02) d.l += l7 ? 13 : 14;
  		switch(field.type) {
  			case 'B': // VFP Double
  				if((!vfp || field.len != 8) && opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
  				break;
  			case 'G': // General
  			case 'P': // Picture
  				if(opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
  				break;
  			case 'C': // character
  			case 'D': // date
  			case 'F': // floating point
  			case 'I': // long
  			case 'L': // boolean
  			case 'M': // memo
  			case 'N': // number
  			case 'O': // double
  			case 'T': // datetime
  			case 'Y': // currency
  			case '0': // VFP _NullFlags
  			case '@': // timestamp
  			case '+': // autoincrement
  				break;
  			default: throw new Error('Unknown Field Type: ' + field.type);
  		}
  	}
  	if(d[d.l] !== 0x0D) d.l = fpos-1;
  	else if(ft == 0x02) d.l = 0x209;
  	if(ft != 0x02) {
  		if(d.read_shift(1) !== 0x0D) throw new Error("DBF Terminator not found " + d.l + " " + d[d.l]);
  		d.l = fpos;
  	}
  	/* data */
  	var R = 0, C = 0;
  	out[0] = [];
  	for(C = 0; C != fields.length; ++C) out[0][C] = fields[C].name;
  	while(nrow-- > 0) {
  		if(d[d.l] === 0x2A) { d.l+=rlen; continue; }
  		++d.l;
  		out[++R] = []; C = 0;
  		for(C = 0; C != fields.length; ++C) {
  			var dd = d.slice(d.l, d.l+fields[C].len); d.l+=fields[C].len;
  			prep_blob(dd, 0);
  			var s = cptable.utils.decode(current_cp, dd);
  			switch(fields[C].type) {
  				case 'C':
  					out[R][C] = cptable.utils.decode(current_cp, dd);
  					out[R][C] = out[R][C].trim();
  					break;
  				case 'D':
  					if(s.length === 8) out[R][C] = new Date(+s.slice(0,4), +s.slice(4,6)-1, +s.slice(6,8));
  					else out[R][C] = s;
  					break;
  				case 'F': out[R][C] = parseFloat(s.trim()); break;
  				case '+': case 'I': out[R][C] = l7 ? dd.read_shift(-4, 'i') ^ 0x80000000 : dd.read_shift(4, 'i'); break;
  				case 'L': switch(s.toUpperCase()) {
  					case 'Y': case 'T': out[R][C] = true; break;
  					case 'N': case 'F': out[R][C] = false; break;
  					case ' ': case '?': out[R][C] = false; break; /* NOTE: technically uninitialized */
  					default: throw new Error("DBF Unrecognized L:|" + s + "|");
  					} break;
  				case 'M': /* TODO: handle memo files */
  					if(!memo) throw new Error("DBF Unexpected MEMO for type " + ft.toString(16));
  					out[R][C] = "##MEMO##" + (l7 ? parseInt(s.trim(), 10): dd.read_shift(4));
  					break;
  				case 'N': out[R][C] = +s.replace(/\u0000/g,"").trim(); break;
  				case '@': out[R][C] = new Date(dd.read_shift(-8, 'f') - 0x388317533400); break;
  				case 'T': out[R][C] = new Date((dd.read_shift(4) - 0x253D8C) * 0x5265C00 + dd.read_shift(4)); break;
  				case 'Y': out[R][C] = dd.read_shift(4,'i')/1e4; break;
  				case 'O': out[R][C] = -dd.read_shift(-8, 'f'); break;
  				case 'B': if(vfp && fields[C].len == 8) { out[R][C] = dd.read_shift(8,'f'); break; }
  					/* falls through */
  				case 'G': case 'P': dd.l += fields[C].len; break;
  				case '0':
  					if(fields[C].name === '_NullFlags') break;
  					/* falls through */
  				default: throw new Error("DBF Unsupported data type " + fields[C].type);
  			}
  		}
  	}
  	if(ft != 0x02) if(d.l < d.length && d[d.l++] != 0x1A) throw new Error("DBF EOF Marker missing " + (d.l-1) + " of " + d.length + " " + d[d.l-1].toString(16));
  	if(opts && opts.sheetRows) out = out.slice(0, opts.sheetRows);
  	return out;
  }
  
  function dbf_to_sheet(buf, opts) {
  	var o = opts || {};
  	if(!o.dateNF) o.dateNF = "yyyymmdd";
  	return aoa_to_sheet(dbf_to_aoa(buf, o), o);
  }
  
  function dbf_to_workbook(buf, opts) {
  	try { return sheet_to_workbook(dbf_to_sheet(buf, opts), opts); }
  	catch(e) { if(opts && opts.WTF) throw e; }
  	return ({SheetNames:[],Sheets:{}});
  }
  
  var _RLEN = { 'B': 8, 'C': 250, 'L': 1, 'D': 8, '?': 0, '': 0 };
  function sheet_to_dbf(ws, opts) {
  	var o = opts || {};
  	if(o.type == "string") throw new Error("Cannot write DBF to JS string");
  	var ba = buf_array();
  	var aoa = sheet_to_json(ws, {header:1, cellDates:true});
  	var headers = aoa[0], data = aoa.slice(1);
  	var i = 0, j = 0, hcnt = 0, rlen = 1;
  	for(i = 0; i < headers.length; ++i) {
  		if(i == null) continue;
  		++hcnt;
  		if(typeof headers[i] === 'number') headers[i] = headers[i].toString(10);
  		if(typeof headers[i] !== 'string') throw new Error("DBF Invalid column name " + headers[i] + " |" + (typeof headers[i]) + "|");
  		if(headers.indexOf(headers[i]) !== i) for(j=0; j<1024;++j)
  			if(headers.indexOf(headers[i] + "_" + j) == -1) { headers[i] += "_" + j; break; }
  	}
  	var range = safe_decode_range(ws['!ref']);
  	var coltypes = [];
  	for(i = 0; i <= range.e.c - range.s.c; ++i) {
  		var col = [];
  		for(j=0; j < data.length; ++j) {
  			if(data[j][i] != null) col.push(data[j][i]);
  		}
  		if(col.length == 0 || headers[i] == null) { coltypes[i] = '?'; continue; }
  		var guess = '', _guess = '';
  		for(j = 0; j < col.length; ++j) {
  			switch(typeof col[j]) {
  				/* TODO: check if L2 compat is desired */
  				case 'number': _guess = 'B'; break;
  				case 'string': _guess = 'C'; break;
  				case 'boolean': _guess = 'L'; break;
  				case 'object': _guess = col[j] instanceof Date ? 'D' : 'C'; break;
  				default: _guess = 'C';
  			}
  			guess = guess && guess != _guess ? 'C' : _guess;
  			if(guess == 'C') break;
  		}
  		rlen += _RLEN[guess] || 0;
  		coltypes[i] = guess;
  	}
  
  	var h = ba.next(32);
  	h.write_shift(4, 0x13021130);
  	h.write_shift(4, data.length);
  	h.write_shift(2, 296 + 32 * hcnt);
  	h.write_shift(2, rlen);
  	for(i=0; i < 4; ++i) h.write_shift(4, 0);
  	h.write_shift(4, 0x00000300); // TODO: CP
  
  	for(i = 0, j = 0; i < headers.length; ++i) {
  		if(headers[i] == null) continue;
  		var hf = ba.next(32);
  		var _f = (headers[i].slice(-10) + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00").slice(0, 11);
  		hf.write_shift(1, _f, "sbcs");
  		hf.write_shift(1, coltypes[i] == '?' ? 'C' : coltypes[i], "sbcs");
  		hf.write_shift(4, j);
  		hf.write_shift(1, _RLEN[coltypes[i]] || 0);
  		hf.write_shift(1, 0);
  		hf.write_shift(1, 0x02);
  		hf.write_shift(4, 0);
  		hf.write_shift(1, 0);
  		hf.write_shift(4, 0);
  		hf.write_shift(4, 0);
  		j += _RLEN[coltypes[i]] || 0;
  	}
  
  	var hb = ba.next(264);
  	hb.write_shift(4, 0x0000000D);
  	for(i=0; i < 65;++i) hb.write_shift(4, 0x00000000);
  	for(i=0; i < data.length; ++i) {
  		var rout = ba.next(rlen);
  		rout.write_shift(1, 0);
  		for(j=0; j<headers.length; ++j) {
  			if(headers[j] == null) continue;
  			switch(coltypes[j]) {
  				case 'L': rout.write_shift(1, data[i][j] == null ? 0x3F : data[i][j] ? 0x54 : 0x46); break;
  				case 'B': rout.write_shift(8, data[i][j]||0, 'f'); break;
  				case 'D':
  					if(!data[i][j]) rout.write_shift(8, "00000000", "sbcs");
  					else {
  						rout.write_shift(4, ("0000"+data[i][j].getFullYear()).slice(-4), "sbcs");
  						rout.write_shift(2, ("00"+(data[i][j].getMonth()+1)).slice(-2), "sbcs");
  						rout.write_shift(2, ("00"+data[i][j].getDate()).slice(-2), "sbcs");
  					} break;
  				case 'C':
  					var _s = String(data[i][j]||"");
  					rout.write_shift(1, _s, "sbcs");
  					for(hcnt=0; hcnt < 250-_s.length; ++hcnt) rout.write_shift(1, 0x20); break;
  			}
  		}
  		// data
  	}
  	ba.next(1).write_shift(1, 0x1A);
  	return ba.end();
  }
  	return {
  		to_workbook: dbf_to_workbook,
  		to_sheet: dbf_to_sheet,
  		from_sheet: sheet_to_dbf
  	};
  })();
  
  var SYLK = (function() {
  	/* TODO: find an actual specification */
  	function sylk_to_aoa(d, opts) {
  		switch(opts.type) {
  			case 'base64': return sylk_to_aoa_str(Base64.decode(d), opts);
  			case 'binary': return sylk_to_aoa_str(d, opts);
  			case 'buffer': return sylk_to_aoa_str(d.toString('binary'), opts);
  			case 'array': return sylk_to_aoa_str(cc2str(d), opts);
  		}
  		throw new Error("Unrecognized type " + opts.type);
  	}
  	function sylk_to_aoa_str(str, opts) {
  		var records = str.split(/[\n\r]+/), R = -1, C = -1, ri = 0, rj = 0, arr = [];
  		var formats = [];
  		var next_cell_format = null;
  		var sht = {}, rowinfo = [], colinfo = [], cw = [];
  		var Mval = 0, j;
  		for (; ri !== records.length; ++ri) {
  			Mval = 0;
  			var rstr=records[ri].trim();
  			var record=rstr.replace(/;;/g, "\u0001").split(";").map(function(x) { return x.replace(/\u0001/g, ";"); });
  			var RT=record[0], val;
  			if(rstr.length > 0) switch(RT) {
  			case 'ID': break; /* header */
  			case 'E': break; /* EOF */
  			case 'B': break; /* dimensions */
  			case 'O': break; /* options? */
  			case 'P':
  				if(record[1].charAt(0) == 'P')
  					formats.push(rstr.slice(3).replace(/;;/g, ";"));
  				break;
  			case 'C':
  			var C_seen_K = false, C_seen_X = false;
  			for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
  				case 'X': C = parseInt(record[rj].slice(1))-1; C_seen_X = true; break;
  				case 'Y':
  					R = parseInt(record[rj].slice(1))-1; if(!C_seen_X) C = 0;
  					for(j = arr.length; j <= R; ++j) arr[j] = [];
  					break;
  				case 'K':
  					val = record[rj].slice(1);
  					if(val.charAt(0) === '"') val = val.slice(1,val.length - 1);
  					else if(val === 'TRUE') val = true;
  					else if(val === 'FALSE') val = false;
  					else if(!isNaN(fuzzynum(val))) {
  						val = fuzzynum(val);
  						if(next_cell_format !== null && SSF.is_date(next_cell_format)) val = numdate(val);
  					} else if(!isNaN(fuzzydate(val).getDate())) {
  						val = parseDate(val);
  					}
  					if(typeof cptable !== 'undefined' && typeof val == "string" && ((opts||{}).type != "string") && (opts||{}).codepage) val = cptable.utils.decode(opts.codepage, val);
  					C_seen_K = true;
  					break;
  				case 'E':
  					var formula = rc_to_a1(record[rj].slice(1), {r:R,c:C});
  					arr[R][C] = [arr[R][C], formula];
  					break;
  				default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
  			}
  			if(C_seen_K) { arr[R][C] = val; next_cell_format = null; }
  			break;
  			case 'F':
  			var F_seen = 0;
  			for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
  				case 'X': C = parseInt(record[rj].slice(1))-1; ++F_seen; break;
  				case 'Y':
  					R = parseInt(record[rj].slice(1))-1; /*C = 0;*/
  					for(j = arr.length; j <= R; ++j) arr[j] = [];
  					break;
  				case 'M': Mval = parseInt(record[rj].slice(1)) / 20; break;
  				case 'F': break; /* ??? */
  				case 'G': break; /* hide grid */
  				case 'P':
  					next_cell_format = formats[parseInt(record[rj].slice(1))];
  					break;
  				case 'S': break; /* cell style */
  				case 'D': break; /* column */
  				case 'N': break; /* font */
  				case 'W':
  					cw = record[rj].slice(1).split(" ");
  					for(j = parseInt(cw[0], 10); j <= parseInt(cw[1], 10); ++j) {
  						Mval = parseInt(cw[2], 10);
  						colinfo[j-1] = Mval === 0 ? {hidden:true}: {wch:Mval}; process_col(colinfo[j-1]);
  					} break;
  				case 'C': /* default column format */
  					C = parseInt(record[rj].slice(1))-1;
  					if(!colinfo[C]) colinfo[C] = {};
  					break;
  				case 'R': /* row properties */
  					R = parseInt(record[rj].slice(1))-1;
  					if(!rowinfo[R]) rowinfo[R] = {};
  					if(Mval > 0) { rowinfo[R].hpt = Mval; rowinfo[R].hpx = pt2px(Mval); }
  					else if(Mval === 0) rowinfo[R].hidden = true;
  					break;
  				default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
  			}
  			if(F_seen < 1) next_cell_format = null; break;
  			default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
  			}
  		}
  		if(rowinfo.length > 0) sht['!rows'] = rowinfo;
  		if(colinfo.length > 0) sht['!cols'] = colinfo;
  		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
  		return [arr, sht];
  	}
  
  	function sylk_to_sheet(d, opts) {
  		var aoasht = sylk_to_aoa(d, opts);
  		var aoa = aoasht[0], ws = aoasht[1];
  		var o = aoa_to_sheet(aoa, opts);
  		keys(ws).forEach(function(k) { o[k] = ws[k]; });
  		return o;
  	}
  
  	function sylk_to_workbook(d, opts) { return sheet_to_workbook(sylk_to_sheet(d, opts), opts); }
  
  	function write_ws_cell_sylk(cell, ws, R, C) {
  		var o = "C;Y" + (R+1) + ";X" + (C+1) + ";K";
  		switch(cell.t) {
  			case 'n':
  				o += (cell.v||0);
  				if(cell.f && !cell.F) o += ";E" + a1_to_rc(cell.f, {r:R, c:C}); break;
  			case 'b': o += cell.v ? "TRUE" : "FALSE"; break;
  			case 'e': o += cell.w || cell.v; break;
  			case 'd': o += '"' + (cell.w || cell.v) + '"'; break;
  			case 's': o += '"' + cell.v.replace(/"/g,"") + '"'; break;
  		}
  		return o;
  	}
  
  	function write_ws_cols_sylk(out, cols) {
  		cols.forEach(function(col, i) {
  			var rec = "F;W" + (i+1) + " " + (i+1) + " ";
  			if(col.hidden) rec += "0";
  			else {
  				if(typeof col.width == 'number') col.wpx = width2px(col.width);
  				if(typeof col.wpx == 'number') col.wch = px2char(col.wpx);
  				if(typeof col.wch == 'number') rec += Math.round(col.wch);
  			}
  			if(rec.charAt(rec.length - 1) != " ") out.push(rec);
  		});
  	}
  
  	function write_ws_rows_sylk(out, rows) {
  		rows.forEach(function(row, i) {
  			var rec = "F;";
  			if(row.hidden) rec += "M0;";
  			else if(row.hpt) rec += "M" + 20 * row.hpt + ";";
  			else if(row.hpx) rec += "M" + 20 * px2pt(row.hpx) + ";";
  			if(rec.length > 2) out.push(rec + "R" + (i+1));
  		});
  	}
  
  	function sheet_to_sylk(ws, opts) {
  		var preamble = ["ID;PWXL;N;E"], o = [];
  		var r = safe_decode_range(ws['!ref']), cell;
  		var dense = Array.isArray(ws);
  		var RS = "\r\n";
  
  		preamble.push("P;PGeneral");
  		preamble.push("F;P0;DG0G8;M255");
  		if(ws['!cols']) write_ws_cols_sylk(preamble, ws['!cols']);
  		if(ws['!rows']) write_ws_rows_sylk(preamble, ws['!rows']);
  
  		preamble.push("B;Y" + (r.e.r - r.s.r + 1) + ";X" + (r.e.c - r.s.c + 1) + ";D" + [r.s.c,r.s.r,r.e.c,r.e.r].join(" "));
  		for(var R = r.s.r; R <= r.e.r; ++R) {
  			for(var C = r.s.c; C <= r.e.c; ++C) {
  				var coord = encode_cell({r:R,c:C});
  				cell = dense ? (ws[R]||[])[C]: ws[coord];
  				if(!cell || (cell.v == null && (!cell.f || cell.F))) continue;
  				o.push(write_ws_cell_sylk(cell, ws, R, C, opts));
  			}
  		}
  		return preamble.join(RS) + RS + o.join(RS) + RS + "E" + RS;
  	}
  
  	return {
  		to_workbook: sylk_to_workbook,
  		to_sheet: sylk_to_sheet,
  		from_sheet: sheet_to_sylk
  	};
  })();
  
  var DIF = (function() {
  	function dif_to_aoa(d, opts) {
  		switch(opts.type) {
  			case 'base64': return dif_to_aoa_str(Base64.decode(d), opts);
  			case 'binary': return dif_to_aoa_str(d, opts);
  			case 'buffer': return dif_to_aoa_str(d.toString('binary'), opts);
  			case 'array': return dif_to_aoa_str(cc2str(d), opts);
  		}
  		throw new Error("Unrecognized type " + opts.type);
  	}
  	function dif_to_aoa_str(str, opts) {
  		var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
  		for (; ri !== records.length; ++ri) {
  			if (records[ri].trim() === 'BOT') { arr[++R] = []; C = 0; continue; }
  			if (R < 0) continue;
  			var metadata = records[ri].trim().split(",");
  			var type = metadata[0], value = metadata[1];
  			++ri;
  			var data = records[ri].trim();
  			switch (+type) {
  				case -1:
  					if (data === 'BOT') { arr[++R] = []; C = 0; continue; }
  					else if (data !== 'EOD') throw new Error("Unrecognized DIF special command " + data);
  					break;
  				case 0:
  					if(data === 'TRUE') arr[R][C] = true;
  					else if(data === 'FALSE') arr[R][C] = false;
  					else if(!isNaN(fuzzynum(value))) arr[R][C] = fuzzynum(value);
  					else if(!isNaN(fuzzydate(value).getDate())) arr[R][C] = parseDate(value);
  					else arr[R][C] = value;
  					++C; break;
  				case 1:
  					data = data.slice(1,data.length-1);
  					arr[R][C++] = data !== '' ? data : null;
  					break;
  			}
  			if (data === 'EOD') break;
  		}
  		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
  		return arr;
  	}
  
  	function dif_to_sheet(str, opts) { return aoa_to_sheet(dif_to_aoa(str, opts), opts); }
  	function dif_to_workbook(str, opts) { return sheet_to_workbook(dif_to_sheet(str, opts), opts); }
  
  	var sheet_to_dif = (function() {
  		var push_field = function pf(o, topic, v, n, s) {
  			o.push(topic);
  			o.push(v + "," + n);
  			o.push('"' + s.replace(/"/g,'""') + '"');
  		};
  		var push_value = function po(o, type, v, s) {
  			o.push(type + "," + v);
  			o.push(type == 1 ? '"' + s.replace(/"/g,'""') + '"' : s);
  		};
  		return function sheet_to_dif(ws) {
  			var o = [];
  			var r = safe_decode_range(ws['!ref']), cell;
  			var dense = Array.isArray(ws);
  			push_field(o, "TABLE", 0, 1, "sheetjs");
  			push_field(o, "VECTORS", 0, r.e.r - r.s.r + 1,"");
  			push_field(o, "TUPLES", 0, r.e.c - r.s.c + 1,"");
  			push_field(o, "DATA", 0, 0,"");
  			for(var R = r.s.r; R <= r.e.r; ++R) {
  				push_value(o, -1, 0, "BOT");
  				for(var C = r.s.c; C <= r.e.c; ++C) {
  					var coord = encode_cell({r:R,c:C});
  					cell = dense ? (ws[R]||[])[C] : ws[coord];
  					if(!cell) { push_value(o, 1, 0, ""); continue;}
  					switch(cell.t) {
  						case 'n':
  							var val = DIF_XL ? cell.w : cell.v;
  							if(!val && cell.v != null) val = cell.v;
  							if(val == null) {
  								if(DIF_XL && cell.f && !cell.F) push_value(o, 1, 0, "=" + cell.f);
  								else push_value(o, 1, 0, "");
  							}
  							else push_value(o, 0, val, "V");
  							break;
  						case 'b':
  							push_value(o, 0, cell.v ? 1 : 0, cell.v ? "TRUE" : "FALSE");
  							break;
  						case 's':
  							push_value(o, 1, 0, (!DIF_XL || isNaN(cell.v)) ? cell.v : '="' + cell.v + '"');
  							break;
  						case 'd':
  							if(!cell.w) cell.w = SSF.format(cell.z || SSF._table[14], datenum(parseDate(cell.v)));
  							if(DIF_XL) push_value(o, 0, cell.w, "V");
  							else push_value(o, 1, 0, cell.w);
  							break;
  						default: push_value(o, 1, 0, "");
  					}
  				}
  			}
  			push_value(o, -1, 0, "EOD");
  			var RS = "\r\n";
  			var oo = o.join(RS);
  			//while((oo.length & 0x7F) != 0) oo += "\0";
  			return oo;
  		};
  	})();
  	return {
  		to_workbook: dif_to_workbook,
  		to_sheet: dif_to_sheet,
  		from_sheet: sheet_to_dif
  	};
  })();
  
  var ETH = (function() {
  	function decode(s) { return s.replace(/\\b/g,"\\").replace(/\\c/g,":").replace(/\\n/g,"\n"); }
  	function encode(s) { return s.replace(/\\/g, "\\b").replace(/:/g, "\\c").replace(/\n/g,"\\n"); }
  
  	function eth_to_aoa(str, opts) {
  		var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
  		for (; ri !== records.length; ++ri) {
  			var record = records[ri].trim().split(":");
  			if(record[0] !== 'cell') continue;
  			var addr = decode_cell(record[1]);
  			if(arr.length <= addr.r) for(R = arr.length; R <= addr.r; ++R) if(!arr[R]) arr[R] = [];
  			R = addr.r; C = addr.c;
  			switch(record[2]) {
  				case 't': arr[R][C] = decode(record[3]); break;
  				case 'v': arr[R][C] = +record[3]; break;
  				case 'vtf': var _f = record[record.length - 1];
  					/* falls through */
  				case 'vtc':
  					switch(record[3]) {
  						case 'nl': arr[R][C] = +record[4] ? true : false; break;
  						default: arr[R][C] = +record[4]; break;
  					}
  					if(record[2] == 'vtf') arr[R][C] = [arr[R][C], _f];
  			}
  		}
  		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
  		return arr;
  	}
  
  	function eth_to_sheet(d, opts) { return aoa_to_sheet(eth_to_aoa(d, opts), opts); }
  	function eth_to_workbook(d, opts) { return sheet_to_workbook(eth_to_sheet(d, opts), opts); }
  
  	var header = [
  		"socialcalc:version:1.5",
  		"MIME-Version: 1.0",
  		"Content-Type: multipart/mixed; boundary=SocialCalcSpreadsheetControlSave"
  	].join("\n");
  
  	var sep = [
  		"--SocialCalcSpreadsheetControlSave",
  		"Content-type: text/plain; charset=UTF-8"
  	].join("\n") + "\n";
  
  	/* TODO: the other parts */
  	var meta = [
  		"# SocialCalc Spreadsheet Control Save",
  		"part:sheet"
  	].join("\n");
  
  	var end = "--SocialCalcSpreadsheetControlSave--";
  
  	function sheet_to_eth_data(ws) {
  		if(!ws || !ws['!ref']) return "";
  		var o = [], oo = [], cell, coord = "";
  		var r = decode_range(ws['!ref']);
  		var dense = Array.isArray(ws);
  		for(var R = r.s.r; R <= r.e.r; ++R) {
  			for(var C = r.s.c; C <= r.e.c; ++C) {
  				coord = encode_cell({r:R,c:C});
  				cell = dense ? (ws[R]||[])[C] : ws[coord];
  				if(!cell || cell.v == null || cell.t === 'z') continue;
  				oo = ["cell", coord, 't'];
  				switch(cell.t) {
  					case 's': case 'str': oo.push(encode(cell.v)); break;
  					case 'n':
  						if(!cell.f) { oo[2]='v'; oo[3]=cell.v; }
  						else { oo[2]='vtf'; oo[3]='n'; oo[4]=cell.v; oo[5]=encode(cell.f); }
  						break;
  					case 'b':
  						oo[2] = 'vt'+(cell.f?'f':'c'); oo[3]='nl'; oo[4]=cell.v?"1":"0";
  						oo[5] = encode(cell.f||(cell.v?'TRUE':'FALSE'));
  						break;
  					case 'd':
  						var t = datenum(parseDate(cell.v));
  						oo[2] = 'vtc'; oo[3] = 'nd'; oo[4] = ""+t;
  						oo[5] = cell.w || SSF.format(cell.z || SSF._table[14], t);
  						break;
  					case 'e': continue;
  				}
  				o.push(oo.join(":"));
  			}
  		}
  		o.push("sheet:c:" + (r.e.c-r.s.c+1) + ":r:" + (r.e.r-r.s.r+1) + ":tvf:1");
  		o.push("valueformat:1:text-wiki");
  		//o.push("copiedfrom:" + ws['!ref']); // clipboard only
  		return o.join("\n");
  	}
  
  	function sheet_to_eth(ws) {
  		return [header, sep, meta, sep, sheet_to_eth_data(ws), end].join("\n");
  		// return ["version:1.5", sheet_to_eth_data(ws)].join("\n"); // clipboard form
  	}
  
  	return {
  		to_workbook: eth_to_workbook,
  		to_sheet: eth_to_sheet,
  		from_sheet: sheet_to_eth
  	};
  })();
  
  var PRN = (function() {
  	function set_text_arr(data, arr, R, C, o) {
  		if(o.raw) arr[R][C] = data;
  		else if(data === 'TRUE') arr[R][C] = true;
  		else if(data === 'FALSE') arr[R][C] = false;
  		else if(data === ""){/* empty */}
  		else if(!isNaN(fuzzynum(data))) arr[R][C] = fuzzynum(data);
  		else if(!isNaN(fuzzydate(data).getDate())) arr[R][C] = parseDate(data);
  		else arr[R][C] = data;
  	}
  
  	function prn_to_aoa_str(f, opts) {
  		var o = opts || {};
  		var arr = ([]);
  		if(!f || f.length === 0) return arr;
  		var lines = f.split(/[\r\n]/);
  		var L = lines.length - 1;
  		while(L >= 0 && lines[L].length === 0) --L;
  		var start = 10, idx = 0;
  		var R = 0;
  		for(; R <= L; ++R) {
  			idx = lines[R].indexOf(" ");
  			if(idx == -1) idx = lines[R].length; else idx++;
  			start = Math.max(start, idx);
  		}
  		for(R = 0; R <= L; ++R) {
  			arr[R] = [];
  			/* TODO: confirm that widths are always 10 */
  			var C = 0;
  			set_text_arr(lines[R].slice(0, start).trim(), arr, R, C, o);
  			for(C = 1; C <= (lines[R].length - start)/10 + 1; ++C)
  				set_text_arr(lines[R].slice(start+(C-1)*10,start+C*10).trim(),arr,R,C,o);
  		}
  		if(o.sheetRows) arr = arr.slice(0, o.sheetRows);
  		return arr;
  	}
  
  	// List of accepted CSV separators
  	var guess_seps = {
  0x2C: ',',
  0x09: "\t",
  0x3B: ';'
  	};
  
  	// CSV separator weights to be used in case of equal numbers
  	var guess_sep_weights = {
  0x2C: 3,
  0x09: 2,
  0x3B: 1
  	};
  
  	function guess_sep(str) {
  		var cnt = {}, instr = false, end = 0, cc = 0;
  		for(;end < str.length;++end) {
  			if((cc=str.charCodeAt(end)) == 0x22) instr = !instr;
  			else if(!instr && cc in guess_seps) cnt[cc] = (cnt[cc]||0)+1;
  		}
  
  		cc = [];
  		for(end in cnt) if ( cnt.hasOwnProperty(end) ) {
  			cc.push([ cnt[end], end ]);
  		}
  
  		if ( !cc.length ) {
  			cnt = guess_sep_weights;
  			for(end in cnt) if ( cnt.hasOwnProperty(end) ) {
  				cc.push([ cnt[end], end ]);
  			}
  		}
  
  		cc.sort(function(a, b) { return a[0] - b[0] || guess_sep_weights[a[1]] - guess_sep_weights[b[1]]; });
  
  		return guess_seps[cc.pop()[1]];
  	}
  
  	function dsv_to_sheet_str(str, opts) {
  		var o = opts || {};
  		var sep = "";
  		if(DENSE != null && o.dense == null) o.dense = DENSE;
  		var ws = o.dense ? ([]) : ({});
  		var range = ({s: {c:0, r:0}, e: {c:0, r:0}});
  
  		if(str.slice(0,4) == "sep=" && str.charCodeAt(5) == 10) { sep = str.charAt(4); str = str.slice(6); }
  		else sep = guess_sep(str.slice(0,1024));
  		var R = 0, C = 0, v = 0;
  		var start = 0, end = 0, sepcc = sep.charCodeAt(0), instr = false, cc=0;
  		str = str.replace(/\r\n/mg, "\n");
  		var _re = o.dateNF != null ? dateNF_regex(o.dateNF) : null;
  		function finish_cell() {
  			var s = str.slice(start, end);
  			var cell = ({});
  			if(s.charAt(0) == '"' && s.charAt(s.length - 1) == '"') s = s.slice(1,-1).replace(/""/g,'"');
  			if(s.length === 0) cell.t = 'z';
  			else if(o.raw) { cell.t = 's'; cell.v = s; }
  			else if(s.trim().length === 0) { cell.t = 's'; cell.v = s; }
  			else if(s.charCodeAt(0) == 0x3D) {
  				if(s.charCodeAt(1) == 0x22 && s.charCodeAt(s.length - 1) == 0x22) { cell.t = 's'; cell.v = s.slice(2,-1).replace(/""/g,'"'); }
  				else if(fuzzyfmla(s)) { cell.t = 'n'; cell.f = s.slice(1); }
  				else { cell.t = 's'; cell.v = s; } }
  			else if(s == "TRUE") { cell.t = 'b'; cell.v = true; }
  			else if(s == "FALSE") { cell.t = 'b'; cell.v = false; }
  			else if(!isNaN(v = fuzzynum(s))) { cell.t = 'n'; if(o.cellText !== false) cell.w = s; cell.v = v; }
  			else if(!isNaN(fuzzydate(s).getDate()) || _re && s.match(_re)) {
  				cell.z = o.dateNF || SSF._table[14];
  				var k = 0;
  				if(_re && s.match(_re)){ s=dateNF_fix(s, o.dateNF, (s.match(_re)||[])); k=1; }
  				if(o.cellDates) { cell.t = 'd'; cell.v = parseDate(s, k); }
  				else { cell.t = 'n'; cell.v = datenum(parseDate(s, k)); }
  				if(o.cellText !== false) cell.w = SSF.format(cell.z, cell.v instanceof Date ? datenum(cell.v):cell.v);
  				if(!o.cellNF) delete cell.z;
  			} else {
  				cell.t = 's';
  				cell.v = s;
  			}
  			if(cell.t == 'z'){}
  			else if(o.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = cell; }
  			else ws[encode_cell({c:C,r:R})] = cell;
  			start = end+1;
  			if(range.e.c < C) range.e.c = C;
  			if(range.e.r < R) range.e.r = R;
  			if(cc == sepcc) ++C; else { C = 0; ++R; if(o.sheetRows && o.sheetRows <= R) return true; }
  		}
  		outer: for(;end < str.length;++end) switch((cc=str.charCodeAt(end))) {
  			case 0x22: instr = !instr; break;
  			case sepcc: case 0x0a: case 0x0d: if(!instr && finish_cell()) break outer; break;
  			default: break;
  		}
  		if(end - start > 0) finish_cell();
  
  		ws['!ref'] = encode_range(range);
  		return ws;
  	}
  
  	function prn_to_sheet_str(str, opts) {
  		if(str.slice(0,4) == "sep=") return dsv_to_sheet_str(str, opts);
  		if(str.indexOf("\t") >= 0 || str.indexOf(",") >= 0 || str.indexOf(";") >= 0) return dsv_to_sheet_str(str, opts);
  		return aoa_to_sheet(prn_to_aoa_str(str, opts), opts);
  	}
  
  	function prn_to_sheet(d, opts) {
  		var str = "", bytes = opts.type == 'string' ? [0,0,0,0] : firstbyte(d, opts);
  		switch(opts.type) {
  			case 'base64': str = Base64.decode(d); break;
  			case 'binary': str = d; break;
  			case 'buffer':
  				if(opts.codepage == 65001) str = d.toString('utf8');
  				else if(opts.codepage && typeof cptable !== 'undefined') str = cptable.utils.decode(opts.codepage, d);
  				else str = d.toString('binary');
  				break;
  			case 'array': str = cc2str(d); break;
  			case 'string': str = d; break;
  			default: throw new Error("Unrecognized type " + opts.type);
  		}
  		if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str.slice(3));
  		else if((opts.type == 'binary') && typeof cptable !== 'undefined' && opts.codepage)  str = cptable.utils.decode(opts.codepage, cptable.utils.encode(1252,str));
  		if(str.slice(0,19) == "socialcalc:version:") return ETH.to_sheet(opts.type == 'string' ? str : utf8read(str), opts);
  		return prn_to_sheet_str(str, opts);
  	}
  
  	function prn_to_workbook(d, opts) { return sheet_to_workbook(prn_to_sheet(d, opts), opts); }
  
  	function sheet_to_prn(ws) {
  		var o = [];
  		var r = safe_decode_range(ws['!ref']), cell;
  		var dense = Array.isArray(ws);
  		for(var R = r.s.r; R <= r.e.r; ++R) {
  			var oo = [];
  			for(var C = r.s.c; C <= r.e.c; ++C) {
  				var coord = encode_cell({r:R,c:C});
  				cell = dense ? (ws[R]||[])[C] : ws[coord];
  				if(!cell || cell.v == null) { oo.push("          "); continue; }
  				var w = (cell.w || (format_cell(cell), cell.w) || "").slice(0,10);
  				while(w.length < 10) w += " ";
  				oo.push(w + (C === 0 ? " " : ""));
  			}
  			o.push(oo.join(""));
  		}
  		return o.join("\n");
  	}
  
  	return {
  		to_workbook: prn_to_workbook,
  		to_sheet: prn_to_sheet,
  		from_sheet: sheet_to_prn
  	};
  })();
  
  /* Excel defaults to SYLK but warns if data is not valid */
  function read_wb_ID(d, opts) {
  	var o = opts || {}, OLD_WTF = !!o.WTF; o.WTF = true;
  	try {
  		var out = SYLK.to_workbook(d, o);
  		o.WTF = OLD_WTF;
  		return out;
  	} catch(e) {
  		o.WTF = OLD_WTF;
  		if(!e.message.match(/SYLK bad record ID/) && OLD_WTF) throw e;
  		return PRN.to_workbook(d, opts);
  	}
  }
  var WK_ = (function() {
  	function lotushopper(data, cb, opts) {
  		if(!data) return;
  		prep_blob(data, data.l || 0);
  		var Enum = opts.Enum || WK1Enum;
  		while(data.l < data.length) {
  			var RT = data.read_shift(2);
  			var R = Enum[RT] || Enum[0xFF];
  			var length = data.read_shift(2);
  			var tgt = data.l + length;
  			var d = (R.f||parsenoop)(data, length, opts);
  			data.l = tgt;
  			if(cb(d, R.n, RT)) return;
  		}
  	}
  
  	function lotus_to_workbook(d, opts) {
  		switch(opts.type) {
  			case 'base64': return lotus_to_workbook_buf(s2a(Base64.decode(d)), opts);
  			case 'binary': return lotus_to_workbook_buf(s2a(d), opts);
  			case 'buffer':
  			case 'array': return lotus_to_workbook_buf(d, opts);
  		}
  		throw "Unsupported type " + opts.type;
  	}
  
  	function lotus_to_workbook_buf(d, opts) {
  		if(!d) return d;
  		var o = opts || {};
  		if(DENSE != null && o.dense == null) o.dense = DENSE;
  		var s = ((o.dense ? [] : {})), n = "Sheet1", sidx = 0;
  		var sheets = {}, snames = [n];
  
  		var refguess = {s: {r:0, c:0}, e: {r:0, c:0} };
  		var sheetRows = o.sheetRows || 0;
  
  		if(d[2] == 0x02) o.Enum = WK1Enum;
  		else if(d[2] == 0x1a) o.Enum = WK3Enum;
  		else if(d[2] == 0x0e) { o.Enum = WK3Enum; o.qpro = true; d.l = 0; }
  		else throw new Error("Unrecognized LOTUS BOF " + d[2]);
  		lotushopper(d, function(val, Rn, RT) {
  			if(d[2] == 0x02) switch(RT) {
  				case 0x00:
  					o.vers = val;
  					if(val >= 0x1000) o.qpro = true;
  					break;
  				case 0x06: refguess = val; break; /* RANGE */
  				case 0x0F: /* LABEL */
  					if(!o.qpro) val[1].v = val[1].v.slice(1);
  					/* falls through */
  				case 0x0D: /* INTEGER */
  				case 0x0E: /* NUMBER */
  				case 0x10: /* FORMULA */
  				case 0x33: /* STRING */
  					/* TODO: actual translation of the format code */
  					if(RT == 0x0E && (val[2] & 0x70) == 0x70 && (val[2] & 0x0F) > 1 && (val[2] & 0x0F) < 15) {
  						val[1].z = o.dateNF || SSF._table[14];
  						if(o.cellDates) { val[1].t = 'd'; val[1].v = numdate(val[1].v); }
  					}
  					if(o.dense) {
  						if(!s[val[0].r]) s[val[0].r] = [];
  						s[val[0].r][val[0].c] = val[1];
  					} else s[encode_cell(val[0])] = val[1];
  					break;
  			} else switch(RT) {
  				case 0x16: /* LABEL16 */
  					val[1].v = val[1].v.slice(1);
  					/* falls through */
  				case 0x17: /* NUMBER17 */
  				case 0x18: /* NUMBER18 */
  				case 0x19: /* FORMULA19 */
  				case 0x25: /* NUMBER25 */
  				case 0x27: /* NUMBER27 */
  				case 0x28: /* FORMULA28 */
  					if(val[3] > sidx) {
  						s["!ref"] = encode_range(refguess);
  						sheets[n] = s;
  						s = (o.dense ? [] : {});
  						refguess = {s: {r:0, c:0}, e: {r:0, c:0} };
  						sidx = val[3]; n = "Sheet" + (sidx + 1);
  						snames.push(n);
  					}
  					if(sheetRows > 0 && val[0].r >= sheetRows) break;
  					if(o.dense) {
  						if(!s[val[0].r]) s[val[0].r] = [];
  						s[val[0].r][val[0].c] = val[1];
  					} else s[encode_cell(val[0])] = val[1];
  					if(refguess.e.c < val[0].c) refguess.e.c = val[0].c;
  					if(refguess.e.r < val[0].r) refguess.e.r = val[0].r;
  					break;
  				default: break;
  			}
  		}, o);
  
  		s["!ref"] = encode_range(refguess);
  		sheets[n] = s;
  		return { SheetNames: snames, Sheets:sheets };
  	}
  
  	function parse_RANGE(blob) {
  		var o = {s:{c:0,r:0},e:{c:0,r:0}};
  		o.s.c = blob.read_shift(2);
  		o.s.r = blob.read_shift(2);
  		o.e.c = blob.read_shift(2);
  		o.e.r = blob.read_shift(2);
  		if(o.s.c == 0xFFFF) o.s.c = o.e.c = o.s.r = o.e.r = 0;
  		return o;
  	}
  
  	function parse_cell(blob, length, opts) {
  		var o = [{c:0,r:0}, {t:'n',v:0}, 0];
  		if(opts.qpro && opts.vers != 0x5120) {
  			o[0].c = blob.read_shift(1);
  			blob.l++;
  			o[0].r = blob.read_shift(2);
  			blob.l+=2;
  		} else {
  			o[2] = blob.read_shift(1);
  			o[0].c = blob.read_shift(2); o[0].r = blob.read_shift(2);
  		}
  		return o;
  	}
  
  	function parse_LABEL(blob, length, opts) {
  		var tgt = blob.l + length;
  		var o = parse_cell(blob, length, opts);
  		o[1].t = 's';
  		if(opts.vers == 0x5120) {
  			blob.l++;
  			var len = blob.read_shift(1);
  			o[1].v = blob.read_shift(len, 'utf8');
  			return o;
  		}
  		if(opts.qpro) blob.l++;
  		o[1].v = blob.read_shift(tgt - blob.l, 'cstr');
  		return o;
  	}
  
  	function parse_INTEGER(blob, length, opts) {
  		var o = parse_cell(blob, length, opts);
  		o[1].v = blob.read_shift(2, 'i');
  		return o;
  	}
  
  	function parse_NUMBER(blob, length, opts) {
  		var o = parse_cell(blob, length, opts);
  		o[1].v = blob.read_shift(8, 'f');
  		return o;
  	}
  
  	function parse_FORMULA(blob, length, opts) {
  		var tgt = blob.l + length;
  		var o = parse_cell(blob, length, opts);
  		/* TODO: formula */
  		o[1].v = blob.read_shift(8, 'f');
  		if(opts.qpro) blob.l = tgt;
  		else {
  			var flen = blob.read_shift(2);
  			blob.l += flen;
  		}
  		return o;
  	}
  
  	function parse_cell_3(blob) {
  		var o = [{c:0,r:0}, {t:'n',v:0}, 0];
  		o[0].r = blob.read_shift(2); o[3] = blob[blob.l++]; o[0].c = blob[blob.l++];
  		return o;
  	}
  
  	function parse_LABEL_16(blob, length) {
  		var o = parse_cell_3(blob, length);
  		o[1].t = 's';
  		o[1].v = blob.read_shift(length - 4, 'cstr');
  		return o;
  	}
  
  	function parse_NUMBER_18(blob, length) {
  		var o = parse_cell_3(blob, length);
  		o[1].v = blob.read_shift(2);
  		var v = o[1].v >> 1;
  		/* TODO: figure out all of the corner cases */
  		if(o[1].v & 0x1) {
  			switch(v & 0x07) {
  				case 1: v = (v >> 3) * 500; break;
  				case 2: v = (v >> 3) / 20; break;
  				case 4: v = (v >> 3) / 2000; break;
  				case 6: v = (v >> 3) / 16; break;
  				case 7: v = (v >> 3) / 64; break;
  				default: throw "unknown NUMBER_18 encoding " + (v & 0x07);
  			}
  		}
  		o[1].v = v;
  		return o;
  	}
  
  	function parse_NUMBER_17(blob, length) {
  		var o = parse_cell_3(blob, length);
  		var v1 = blob.read_shift(4);
  		var v2 = blob.read_shift(4);
  		var e = blob.read_shift(2);
  		if(e == 0xFFFF) { o[1].v = 0; return o; }
  		var s = e & 0x8000; e = (e&0x7FFF) - 16446;
  		o[1].v = (s*2 - 1) * ((e > 0 ? (v2 << e) : (v2 >>> -e)) + (e > -32 ? (v1 << (e + 32)) : (v1 >>> -(e + 32))));
  		return o;
  	}
  
  	function parse_FORMULA_19(blob, length) {
  		var o = parse_NUMBER_17(blob, 14);
  		blob.l += length - 14; /* TODO: formula */
  		return o;
  	}
  
  	function parse_NUMBER_25(blob, length) {
  		var o = parse_cell_3(blob, length);
  		var v1 = blob.read_shift(4);
  		o[1].v = v1 >> 6;
  		return o;
  	}
  
  	function parse_NUMBER_27(blob, length) {
  		var o = parse_cell_3(blob, length);
  		var v1 = blob.read_shift(8,'f');
  		o[1].v = v1;
  		return o;
  	}
  
  	function parse_FORMULA_28(blob, length) {
  		var o = parse_NUMBER_27(blob, 14);
  		blob.l += length - 10; /* TODO: formula */
  		return o;
  	}
  
  	var WK1Enum = {
  0x0000: { n:"BOF", f:parseuint16 },
  0x0001: { n:"EOF" },
  0x0002: { n:"CALCMODE" },
  0x0003: { n:"CALCORDER" },
  0x0004: { n:"SPLIT" },
  0x0005: { n:"SYNC" },
  0x0006: { n:"RANGE", f:parse_RANGE },
  0x0007: { n:"WINDOW1" },
  0x0008: { n:"COLW1" },
  0x0009: { n:"WINTWO" },
  0x000A: { n:"COLW2" },
  0x000B: { n:"NAME" },
  0x000C: { n:"BLANK" },
  0x000D: { n:"INTEGER", f:parse_INTEGER },
  0x000E: { n:"NUMBER", f:parse_NUMBER },
  0x000F: { n:"LABEL", f:parse_LABEL },
  0x0010: { n:"FORMULA", f:parse_FORMULA },
  0x0018: { n:"TABLE" },
  0x0019: { n:"ORANGE" },
  0x001A: { n:"PRANGE" },
  0x001B: { n:"SRANGE" },
  0x001C: { n:"FRANGE" },
  0x001D: { n:"KRANGE1" },
  0x0020: { n:"HRANGE" },
  0x0023: { n:"KRANGE2" },
  0x0024: { n:"PROTEC" },
  0x0025: { n:"FOOTER" },
  0x0026: { n:"HEADER" },
  0x0027: { n:"SETUP" },
  0x0028: { n:"MARGINS" },
  0x0029: { n:"LABELFMT" },
  0x002A: { n:"TITLES" },
  0x002B: { n:"SHEETJS" },
  0x002D: { n:"GRAPH" },
  0x002E: { n:"NGRAPH" },
  0x002F: { n:"CALCCOUNT" },
  0x0030: { n:"UNFORMATTED" },
  0x0031: { n:"CURSORW12" },
  0x0032: { n:"WINDOW" },
  0x0033: { n:"STRING", f:parse_LABEL },
  0x0037: { n:"PASSWORD" },
  0x0038: { n:"LOCKED" },
  0x003C: { n:"QUERY" },
  0x003D: { n:"QUERYNAME" },
  0x003E: { n:"PRINT" },
  0x003F: { n:"PRINTNAME" },
  0x0040: { n:"GRAPH2" },
  0x0041: { n:"GRAPHNAME" },
  0x0042: { n:"ZOOM" },
  0x0043: { n:"SYMSPLIT" },
  0x0044: { n:"NSROWS" },
  0x0045: { n:"NSCOLS" },
  0x0046: { n:"RULER" },
  0x0047: { n:"NNAME" },
  0x0048: { n:"ACOMM" },
  0x0049: { n:"AMACRO" },
  0x004A: { n:"PARSE" },
  0x00FF: { n:"", f:parsenoop }
  	};
  
  	var WK3Enum = {
  0x0000: { n:"BOF" },
  0x0001: { n:"EOF" },
  0x0003: { n:"??" },
  0x0004: { n:"??" },
  0x0005: { n:"??" },
  0x0006: { n:"??" },
  0x0007: { n:"??" },
  0x0009: { n:"??" },
  0x000a: { n:"??" },
  0x000b: { n:"??" },
  0x000c: { n:"??" },
  0x000e: { n:"??" },
  0x000f: { n:"??" },
  0x0010: { n:"??" },
  0x0011: { n:"??" },
  0x0012: { n:"??" },
  0x0013: { n:"??" },
  0x0015: { n:"??" },
  0x0016: { n:"LABEL16", f:parse_LABEL_16},
  0x0017: { n:"NUMBER17", f:parse_NUMBER_17 },
  0x0018: { n:"NUMBER18", f:parse_NUMBER_18 },
  0x0019: { n:"FORMULA19", f:parse_FORMULA_19},
  0x001a: { n:"??" },
  0x001b: { n:"??" },
  0x001c: { n:"??" },
  0x001d: { n:"??" },
  0x001e: { n:"??" },
  0x001f: { n:"??" },
  0x0021: { n:"??" },
  0x0025: { n:"NUMBER25", f:parse_NUMBER_25 },
  0x0027: { n:"NUMBER27", f:parse_NUMBER_27 },
  0x0028: { n:"FORMULA28", f:parse_FORMULA_28 },
  0x00FF: { n:"", f:parsenoop }
  	};
  	return {
  		to_workbook: lotus_to_workbook
  	};
  })();
  /* Parse a list of <r> tags */
  var parse_rs = (function parse_rs_factory() {
  	var tregex = matchtag("t"), rpregex = matchtag("rPr"), rregex = /<(?:\w+:)?r>/g, rend = /<\/(?:\w+:)?r>/, nlregex = /\r\n/g;
  	/* 18.4.7 rPr CT_RPrElt */
  	var parse_rpr = function parse_rpr(rpr, intro, outro) {
  		var font = {}, cp = 65001, align = "";
  		var pass = false;
  		var m = rpr.match(tagregex), i = 0;
  		if(m) for(;i!=m.length; ++i) {
  			var y = parsexmltag(m[i]);
  			switch(y[0].replace(/\w*:/g,"")) {
  				/* 18.8.12 condense CT_BooleanProperty */
  				/* ** not required . */
  				case '<condense': break;
  				/* 18.8.17 extend CT_BooleanProperty */
  				/* ** not required . */
  				case '<extend': break;
  				/* 18.8.36 shadow CT_BooleanProperty */
  				/* ** not required . */
  				case '<shadow':
  					if(!y.val) break;
  					/* falls through */
  				case '<shadow>':
  				case '<shadow/>': font.shadow = 1; break;
  				case '</shadow>': break;
  
  				/* 18.4.1 charset CT_IntProperty TODO */
  				case '<charset':
  					if(y.val == '1') break;
  					cp = CS2CP[parseInt(y.val, 10)];
  					break;
  
  				/* 18.4.2 outline CT_BooleanProperty TODO */
  				case '<outline':
  					if(!y.val) break;
  					/* falls through */
  				case '<outline>':
  				case '<outline/>': font.outline = 1; break;
  				case '</outline>': break;
  
  				/* 18.4.5 rFont CT_FontName */
  				case '<rFont': font.name = y.val; break;
  
  				/* 18.4.11 sz CT_FontSize */
  				case '<sz': font.sz = y.val; break;
  
  				/* 18.4.10 strike CT_BooleanProperty */
  				case '<strike':
  					if(!y.val) break;
  					/* falls through */
  				case '<strike>':
  				case '<strike/>': font.strike = 1; break;
  				case '</strike>': break;
  
  				/* 18.4.13 u CT_UnderlineProperty */
  				case '<u':
  					if(!y.val) break;
  					switch(y.val) {
  						case 'double': font.uval = "double"; break;
  						case 'singleAccounting': font.uval = "single-accounting"; break;
  						case 'doubleAccounting': font.uval = "double-accounting"; break;
  					}
  					/* falls through */
  				case '<u>':
  				case '<u/>': font.u = 1; break;
  				case '</u>': break;
  
  				/* 18.8.2 b */
  				case '<b':
  					if(y.val == '0') break;
  					/* falls through */
  				case '<b>':
  				case '<b/>': font.b = 1; break;
  				case '</b>': break;
  
  				/* 18.8.26 i */
  				case '<i':
  					if(y.val == '0') break;
  					/* falls through */
  				case '<i>':
  				case '<i/>': font.i = 1; break;
  				case '</i>': break;
  
  				/* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
  				case '<color':
  					if(y.rgb) font.color = y.rgb.slice(2,8);
  					break;
  
  				/* 18.8.18 family ST_FontFamily */
  				case '<family': font.family = y.val; break;
  
  				/* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
  				case '<vertAlign': align = y.val; break;
  
  				/* 18.8.35 scheme CT_FontScheme TODO */
  				case '<scheme': break;
  
  				/* 18.2.10 extLst CT_ExtensionList ? */
  				case '<extLst': case '<extLst>': case '</extLst>': break;
  				case '<ext': pass = true; break;
  				case '</ext>': pass = false; break;
  				default:
  					if(y[0].charCodeAt(1) !== 47 && !pass) throw new Error('Unrecognized rich format ' + y[0]);
  			}
  		}
  		var style = [];
  
  		if(font.u) style.push("text-decoration: underline;");
  		if(font.uval) style.push("text-underline-style:" + font.uval + ";");
  		if(font.sz) style.push("font-size:" + font.sz + "pt;");
  		if(font.outline) style.push("text-effect: outline;");
  		if(font.shadow) style.push("text-shadow: auto;");
  		intro.push('<span style="' + style.join("") + '">');
  
  		if(font.b) { intro.push("<b>"); outro.push("</b>"); }
  		if(font.i) { intro.push("<i>"); outro.push("</i>"); }
  		if(font.strike) { intro.push("<s>"); outro.push("</s>"); }
  
  		if(align == "superscript") align = "sup";
  		else if(align == "subscript") align = "sub";
  		if(align != "") { intro.push("<" + align + ">"); outro.push("</" + align + ">"); }
  
  		outro.push("</span>");
  		return cp;
  	};
  
  	/* 18.4.4 r CT_RElt */
  	function parse_r(r) {
  		var terms = [[],"",[]];
  		/* 18.4.12 t ST_Xstring */
  		var t = r.match(tregex)/*, cp = 65001*/;
  		if(!t) return "";
  		terms[1] = t[1];
  
  		var rpr = r.match(rpregex);
  		if(rpr) /*cp = */parse_rpr(rpr[1], terms[0], terms[2]);
  
  		return terms[0].join("") + terms[1].replace(nlregex,'<br/>') + terms[2].join("");
  	}
  	return function parse_rs(rs) {
  		return rs.replace(rregex,"").split(rend).map(parse_r).join("");
  	};
  })();
  
  /* 18.4.8 si CT_Rst */
  var sitregex = /<(?:\w+:)?t[^>]*>([^<]*)<\/(?:\w+:)?t>/g, sirregex = /<(?:\w+:)?r>/;
  var sirphregex = /<(?:\w+:)?rPh.*?>([\s\S]*?)<\/(?:\w+:)?rPh>/g;
  function parse_si(x, opts) {
  	var html = opts ? opts.cellHTML : true;
  	var z = {};
  	if(!x) return null;
  	//var y;
  	/* 18.4.12 t ST_Xstring (Plaintext String) */
  	// TODO: is whitespace actually valid here?
  	if(x.match(/^\s*<(?:\w+:)?t[^>]*>/)) {
  		z.t = unescapexml(utf8read(x.slice(x.indexOf(">")+1).split(/<\/(?:\w+:)?t>/)[0]||""));
  		z.r = utf8read(x);
  		if(html) z.h = escapehtml(z.t);
  	}
  	/* 18.4.4 r CT_RElt (Rich Text Run) */
  	else if((/*y = */x.match(sirregex))) {
  		z.r = utf8read(x);
  		z.t = unescapexml(utf8read((x.replace(sirphregex, '').match(sitregex)||[]).join("").replace(tagregex,"")));
  		if(html) z.h = parse_rs(z.r);
  	}
  	/* 18.4.3 phoneticPr CT_PhoneticPr (TODO: needed for Asian support) */
  	/* 18.4.6 rPh CT_PhoneticRun (TODO: needed for Asian support) */
  	return z;
  }
  
  /* 18.4 Shared String Table */
  var sstr0 = /<(?:\w+:)?sst([^>]*)>([\s\S]*)<\/(?:\w+:)?sst>/;
  var sstr1 = /<(?:\w+:)?(?:si|sstItem)>/g;
  var sstr2 = /<\/(?:\w+:)?(?:si|sstItem)>/;
  function parse_sst_xml(data, opts) {
  	var s = ([]), ss = "";
  	if(!data) return s;
  	/* 18.4.9 sst CT_Sst */
  	var sst = data.match(sstr0);
  	if(sst) {
  		ss = sst[2].replace(sstr1,"").split(sstr2);
  		for(var i = 0; i != ss.length; ++i) {
  			var o = parse_si(ss[i].trim(), opts);
  			if(o != null) s[s.length] = o;
  		}
  		sst = parsexmltag(sst[1]); s.Count = sst.count; s.Unique = sst.uniqueCount;
  	}
  	return s;
  }
  
  RELS.SST = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings";
  var straywsregex = /^\s|\s$|[\t\n\r]/;
  function write_sst_xml(sst, opts) {
  	if(!opts.bookSST) return "";
  	var o = [XML_HEADER];
  	o[o.length] = (writextag('sst', null, {
  		xmlns: XMLNS.main[0],
  		count: sst.Count,
  		uniqueCount: sst.Unique
  	}));
  	for(var i = 0; i != sst.length; ++i) { if(sst[i] == null) continue;
  		var s = sst[i];
  		var sitag = "<si>";
  		if(s.r) sitag += s.r;
  		else {
  			sitag += "<t";
  			if(!s.t) s.t = "";
  			if(s.t.match(straywsregex)) sitag += ' xml:space="preserve"';
  			sitag += ">" + escapexml(s.t) + "</t>";
  		}
  		sitag += "</si>";
  		o[o.length] = (sitag);
  	}
  	if(o.length>2){ o[o.length] = ('</sst>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* [MS-XLSB] 2.4.221 BrtBeginSst */
  function parse_BrtBeginSst(data) {
  	return [data.read_shift(4), data.read_shift(4)];
  }
  
  /* [MS-XLSB] 2.1.7.45 Shared Strings */
  function parse_sst_bin(data, opts) {
  	var s = ([]);
  	var pass = false;
  	recordhopper(data, function hopper_sst(val, R_n, RT) {
  		switch(RT) {
  			case 0x009F: /* 'BrtBeginSst' */
  				s.Count = val[0]; s.Unique = val[1]; break;
  			case 0x0013: /* 'BrtSSTItem' */
  				s.push(val); break;
  			case 0x00A0: /* 'BrtEndSst' */
  				return true;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  
  			default:
  				if(R_n.indexOf("Begin") > 0){/* empty */}
  				else if(R_n.indexOf("End") > 0){/* empty */}
  				if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	});
  	return s;
  }
  
  function write_BrtBeginSst(sst, o) {
  	if(!o) o = new_buf(8);
  	o.write_shift(4, sst.Count);
  	o.write_shift(4, sst.Unique);
  	return o;
  }
  
  var write_BrtSSTItem = write_RichStr;
  
  function write_sst_bin(sst) {
  	var ba = buf_array();
  	write_record(ba, "BrtBeginSst", write_BrtBeginSst(sst));
  	for(var i = 0; i < sst.length; ++i) write_record(ba, "BrtSSTItem", write_BrtSSTItem(sst[i]));
  	/* FRTSST */
  	write_record(ba, "BrtEndSst");
  	return ba.end();
  }
  function _JS2ANSI(str) {
  	if(typeof cptable !== 'undefined') return cptable.utils.encode(current_ansi, str);
  	var o = [], oo = str.split("");
  	for(var i = 0; i < oo.length; ++i) o[i] = oo[i].charCodeAt(0);
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.4 Version */
  function parse_CRYPTOVersion(blob, length) {
  	var o = {};
  	o.Major = blob.read_shift(2);
  	o.Minor = blob.read_shift(2);
  if(length >= 4) blob.l += length - 4;
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.5 DataSpaceVersionInfo */
  function parse_DataSpaceVersionInfo(blob) {
  	var o = {};
  	o.id = blob.read_shift(0, 'lpp4');
  	o.R = parse_CRYPTOVersion(blob, 4);
  	o.U = parse_CRYPTOVersion(blob, 4);
  	o.W = parse_CRYPTOVersion(blob, 4);
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.6.1 DataSpaceMapEntry Structure */
  function parse_DataSpaceMapEntry(blob) {
  	var len = blob.read_shift(4);
  	var end = blob.l + len - 4;
  	var o = {};
  	var cnt = blob.read_shift(4);
  	var comps = [];
  	/* [MS-OFFCRYPTO] 2.1.6.2 DataSpaceReferenceComponent Structure */
  	while(cnt-- > 0) comps.push({ t: blob.read_shift(4), v: blob.read_shift(0, 'lpp4') });
  	o.name = blob.read_shift(0, 'lpp4');
  	o.comps = comps;
  	if(blob.l != end) throw new Error("Bad DataSpaceMapEntry: " + blob.l + " != " + end);
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.6 DataSpaceMap */
  function parse_DataSpaceMap(blob) {
  	var o = [];
  	blob.l += 4; // must be 0x8
  	var cnt = blob.read_shift(4);
  	while(cnt-- > 0) o.push(parse_DataSpaceMapEntry(blob));
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.7 DataSpaceDefinition */
  function parse_DataSpaceDefinition(blob) {
  	var o = [];
  	blob.l += 4; // must be 0x8
  	var cnt = blob.read_shift(4);
  	while(cnt-- > 0) o.push(blob.read_shift(0, 'lpp4'));
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.1.8 DataSpaceDefinition */
  function parse_TransformInfoHeader(blob) {
  	var o = {};
  	/*var len = */blob.read_shift(4);
  	blob.l += 4; // must be 0x1
  	o.id = blob.read_shift(0, 'lpp4');
  	o.name = blob.read_shift(0, 'lpp4');
  	o.R = parse_CRYPTOVersion(blob, 4);
  	o.U = parse_CRYPTOVersion(blob, 4);
  	o.W = parse_CRYPTOVersion(blob, 4);
  	return o;
  }
  
  function parse_Primary(blob) {
  	/* [MS-OFFCRYPTO] 2.2.6 IRMDSTransformInfo */
  	var hdr = parse_TransformInfoHeader(blob);
  	/* [MS-OFFCRYPTO] 2.1.9 EncryptionTransformInfo */
  	hdr.ename = blob.read_shift(0, '8lpp4');
  	hdr.blksz = blob.read_shift(4);
  	hdr.cmode = blob.read_shift(4);
  	if(blob.read_shift(4) != 0x04) throw new Error("Bad !Primary record");
  	return hdr;
  }
  
  /* [MS-OFFCRYPTO] 2.3.2 Encryption Header */
  function parse_EncryptionHeader(blob, length) {
  	var tgt = blob.l + length;
  	var o = {};
  	o.Flags = (blob.read_shift(4) & 0x3F);
  	blob.l += 4;
  	o.AlgID = blob.read_shift(4);
  	var valid = false;
  	switch(o.AlgID) {
  		case 0x660E: case 0x660F: case 0x6610: valid = (o.Flags == 0x24); break;
  		case 0x6801: valid = (o.Flags == 0x04); break;
  		case 0: valid = (o.Flags == 0x10 || o.Flags == 0x04 || o.Flags == 0x24); break;
  		default: throw 'Unrecognized encryption algorithm: ' + o.AlgID;
  	}
  	if(!valid) throw new Error("Encryption Flags/AlgID mismatch");
  	o.AlgIDHash = blob.read_shift(4);
  	o.KeySize = blob.read_shift(4);
  	o.ProviderType = blob.read_shift(4);
  	blob.l += 8;
  	o.CSPName = blob.read_shift((tgt-blob.l)>>1, 'utf16le');
  	blob.l = tgt;
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.3.3 Encryption Verifier */
  function parse_EncryptionVerifier(blob, length) {
  	var o = {}, tgt = blob.l + length;
  	blob.l += 4; // SaltSize must be 0x10
  	o.Salt = blob.slice(blob.l, blob.l+16); blob.l += 16;
  	o.Verifier = blob.slice(blob.l, blob.l+16); blob.l += 16;
  	/*var sz = */blob.read_shift(4);
  	o.VerifierHash = blob.slice(blob.l, tgt); blob.l = tgt;
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.3.4.* EncryptionInfo Stream */
  function parse_EncryptionInfo(blob) {
  	var vers = parse_CRYPTOVersion(blob);
  	switch(vers.Minor) {
  		case 0x02: return [vers.Minor, parse_EncInfoStd(blob, vers)];
  		case 0x03: return [vers.Minor, parse_EncInfoExt(blob, vers)];
  		case 0x04: return [vers.Minor, parse_EncInfoAgl(blob, vers)];
  	}
  	throw new Error("ECMA-376 Encrypted file unrecognized Version: " + vers.Minor);
  }
  
  /* [MS-OFFCRYPTO] 2.3.4.5  EncryptionInfo Stream (Standard Encryption) */
  function parse_EncInfoStd(blob) {
  	var flags = blob.read_shift(4);
  	if((flags & 0x3F) != 0x24) throw new Error("EncryptionInfo mismatch");
  	var sz = blob.read_shift(4);
  	//var tgt = blob.l + sz;
  	var hdr = parse_EncryptionHeader(blob, sz);
  	var verifier = parse_EncryptionVerifier(blob, blob.length - blob.l);
  	return { t:"Std", h:hdr, v:verifier };
  }
  /* [MS-OFFCRYPTO] 2.3.4.6  EncryptionInfo Stream (Extensible Encryption) */
  function parse_EncInfoExt() { throw new Error("File is password-protected: ECMA-376 Extensible"); }
  /* [MS-OFFCRYPTO] 2.3.4.10 EncryptionInfo Stream (Agile Encryption) */
  function parse_EncInfoAgl(blob) {
  	var KeyData = ["saltSize","blockSize","keyBits","hashSize","cipherAlgorithm","cipherChaining","hashAlgorithm","saltValue"];
  	blob.l+=4;
  	var xml = blob.read_shift(blob.length - blob.l, 'utf8');
  	var o = {};
  	xml.replace(tagregex, function xml_agile(x) {
  		var y = parsexmltag(x);
  		switch(strip_ns(y[0])) {
  			case '<?xml': break;
  			case '<encryption': case '</encryption>': break;
  			case '<keyData': KeyData.forEach(function(k) { o[k] = y[k]; }); break;
  			case '<dataIntegrity': o.encryptedHmacKey = y.encryptedHmacKey; o.encryptedHmacValue = y.encryptedHmacValue; break;
  			case '<keyEncryptors>': case '<keyEncryptors': o.encs = []; break;
  			case '</keyEncryptors>': break;
  
  			case '<keyEncryptor': o.uri = y.uri; break;
  			case '</keyEncryptor>': break;
  			case '<encryptedKey': o.encs.push(y); break;
  			default: throw y[0];
  		}
  	});
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.3.5.1 RC4 CryptoAPI Encryption Header */
  function parse_RC4CryptoHeader(blob, length) {
  	var o = {};
  	var vers = o.EncryptionVersionInfo = parse_CRYPTOVersion(blob, 4); length -= 4;
  	if(vers.Minor != 2) throw new Error('unrecognized minor version code: ' + vers.Minor);
  	if(vers.Major > 4 || vers.Major < 2) throw new Error('unrecognized major version code: ' + vers.Major);
  	o.Flags = blob.read_shift(4); length -= 4;
  	var sz = blob.read_shift(4); length -= 4;
  	o.EncryptionHeader = parse_EncryptionHeader(blob, sz); length -= sz;
  	o.EncryptionVerifier = parse_EncryptionVerifier(blob, length);
  	return o;
  }
  /* [MS-OFFCRYPTO] 2.3.6.1 RC4 Encryption Header */
  function parse_RC4Header(blob) {
  	var o = {};
  	var vers = o.EncryptionVersionInfo = parse_CRYPTOVersion(blob, 4);
  	if(vers.Major != 1 || vers.Minor != 1) throw 'unrecognized version code ' + vers.Major + ' : ' + vers.Minor;
  	o.Salt = blob.read_shift(16);
  	o.EncryptedVerifier = blob.read_shift(16);
  	o.EncryptedVerifierHash = blob.read_shift(16);
  	return o;
  }
  
  /* [MS-OFFCRYPTO] 2.3.7.1 Binary Document Password Verifier Derivation */
  function crypto_CreatePasswordVerifier_Method1(Password) {
  	var Verifier = 0x0000, PasswordArray;
  	var PasswordDecoded = _JS2ANSI(Password);
  	var len = PasswordDecoded.length + 1, i, PasswordByte;
  	var Intermediate1, Intermediate2, Intermediate3;
  	PasswordArray = new_raw_buf(len);
  	PasswordArray[0] = PasswordDecoded.length;
  	for(i = 1; i != len; ++i) PasswordArray[i] = PasswordDecoded[i-1];
  	for(i = len-1; i >= 0; --i) {
  		PasswordByte = PasswordArray[i];
  		Intermediate1 = ((Verifier & 0x4000) === 0x0000) ? 0 : 1;
  		Intermediate2 = (Verifier << 1) & 0x7FFF;
  		Intermediate3 = Intermediate1 | Intermediate2;
  		Verifier = Intermediate3 ^ PasswordByte;
  	}
  	return Verifier ^ 0xCE4B;
  }
  
  /* [MS-OFFCRYPTO] 2.3.7.2 Binary Document XOR Array Initialization */
  var crypto_CreateXorArray_Method1 = (function() {
  	var PadArray = [0xBB, 0xFF, 0xFF, 0xBA, 0xFF, 0xFF, 0xB9, 0x80, 0x00, 0xBE, 0x0F, 0x00, 0xBF, 0x0F, 0x00];
  	var InitialCode = [0xE1F0, 0x1D0F, 0xCC9C, 0x84C0, 0x110C, 0x0E10, 0xF1CE, 0x313E, 0x1872, 0xE139, 0xD40F, 0x84F9, 0x280C, 0xA96A, 0x4EC3];
  	var XorMatrix = [0xAEFC, 0x4DD9, 0x9BB2, 0x2745, 0x4E8A, 0x9D14, 0x2A09, 0x7B61, 0xF6C2, 0xFDA5, 0xEB6B, 0xC6F7, 0x9DCF, 0x2BBF, 0x4563, 0x8AC6, 0x05AD, 0x0B5A, 0x16B4, 0x2D68, 0x5AD0, 0x0375, 0x06EA, 0x0DD4, 0x1BA8, 0x3750, 0x6EA0, 0xDD40, 0xD849, 0xA0B3, 0x5147, 0xA28E, 0x553D, 0xAA7A, 0x44D5, 0x6F45, 0xDE8A, 0xAD35, 0x4A4B, 0x9496, 0x390D, 0x721A, 0xEB23, 0xC667, 0x9CEF, 0x29FF, 0x53FE, 0xA7FC, 0x5FD9, 0x47D3, 0x8FA6, 0x0F6D, 0x1EDA, 0x3DB4, 0x7B68, 0xF6D0, 0xB861, 0x60E3, 0xC1C6, 0x93AD, 0x377B, 0x6EF6, 0xDDEC, 0x45A0, 0x8B40, 0x06A1, 0x0D42, 0x1A84, 0x3508, 0x6A10, 0xAA51, 0x4483, 0x8906, 0x022D, 0x045A, 0x08B4, 0x1168, 0x76B4, 0xED68, 0xCAF1, 0x85C3, 0x1BA7, 0x374E, 0x6E9C, 0x3730, 0x6E60, 0xDCC0, 0xA9A1, 0x4363, 0x86C6, 0x1DAD, 0x3331, 0x6662, 0xCCC4, 0x89A9, 0x0373, 0x06E6, 0x0DCC, 0x1021, 0x2042, 0x4084, 0x8108, 0x1231, 0x2462, 0x48C4];
  	var Ror = function(Byte) { return ((Byte/2) | (Byte*128)) & 0xFF; };
  	var XorRor = function(byte1, byte2) { return Ror(byte1 ^ byte2); };
  	var CreateXorKey_Method1 = function(Password) {
  		var XorKey = InitialCode[Password.length - 1];
  		var CurrentElement = 0x68;
  		for(var i = Password.length-1; i >= 0; --i) {
  			var Char = Password[i];
  			for(var j = 0; j != 7; ++j) {
  				if(Char & 0x40) XorKey ^= XorMatrix[CurrentElement];
  				Char *= 2; --CurrentElement;
  			}
  		}
  		return XorKey;
  	};
  	return function(password) {
  		var Password = _JS2ANSI(password);
  		var XorKey = CreateXorKey_Method1(Password);
  		var Index = Password.length;
  		var ObfuscationArray = new_raw_buf(16);
  		for(var i = 0; i != 16; ++i) ObfuscationArray[i] = 0x00;
  		var Temp, PasswordLastChar, PadIndex;
  		if((Index & 1) === 1) {
  			Temp = XorKey >> 8;
  			ObfuscationArray[Index] = XorRor(PadArray[0], Temp);
  			--Index;
  			Temp = XorKey & 0xFF;
  			PasswordLastChar = Password[Password.length - 1];
  			ObfuscationArray[Index] = XorRor(PasswordLastChar, Temp);
  		}
  		while(Index > 0) {
  			--Index;
  			Temp = XorKey >> 8;
  			ObfuscationArray[Index] = XorRor(Password[Index], Temp);
  			--Index;
  			Temp = XorKey & 0xFF;
  			ObfuscationArray[Index] = XorRor(Password[Index], Temp);
  		}
  		Index = 15;
  		PadIndex = 15 - Password.length;
  		while(PadIndex > 0) {
  			Temp = XorKey >> 8;
  			ObfuscationArray[Index] = XorRor(PadArray[PadIndex], Temp);
  			--Index;
  			--PadIndex;
  			Temp = XorKey & 0xFF;
  			ObfuscationArray[Index] = XorRor(Password[Index], Temp);
  			--Index;
  			--PadIndex;
  		}
  		return ObfuscationArray;
  	};
  })();
  
  /* [MS-OFFCRYPTO] 2.3.7.3 Binary Document XOR Data Transformation Method 1 */
  var crypto_DecryptData_Method1 = function(password, Data, XorArrayIndex, XorArray, O) {
  	/* If XorArray is set, use it; if O is not set, make changes in-place */
  	if(!O) O = Data;
  	if(!XorArray) XorArray = crypto_CreateXorArray_Method1(password);
  	var Index, Value;
  	for(Index = 0; Index != Data.length; ++Index) {
  		Value = Data[Index];
  		Value ^= XorArray[XorArrayIndex];
  		Value = ((Value>>5) | (Value<<3)) & 0xFF;
  		O[Index] = Value;
  		++XorArrayIndex;
  	}
  	return [O, XorArrayIndex, XorArray];
  };
  
  var crypto_MakeXorDecryptor = function(password) {
  	var XorArrayIndex = 0, XorArray = crypto_CreateXorArray_Method1(password);
  	return function(Data) {
  		var O = crypto_DecryptData_Method1("", Data, XorArrayIndex, XorArray);
  		XorArrayIndex = O[1];
  		return O[0];
  	};
  };
  
  /* 2.5.343 */
  function parse_XORObfuscation(blob, length, opts, out) {
  	var o = ({ key: parseuint16(blob), verificationBytes: parseuint16(blob) });
  	if(opts.password) o.verifier = crypto_CreatePasswordVerifier_Method1(opts.password);
  	out.valid = o.verificationBytes === o.verifier;
  	if(out.valid) out.insitu = crypto_MakeXorDecryptor(opts.password);
  	return o;
  }
  
  /* 2.4.117 */
  function parse_FilePassHeader(blob, length, oo) {
  	var o = oo || {}; o.Info = blob.read_shift(2); blob.l -= 2;
  	if(o.Info === 1) o.Data = parse_RC4Header(blob, length);
  	else o.Data = parse_RC4CryptoHeader(blob, length);
  	return o;
  }
  function parse_FilePass(blob, length, opts) {
  	var o = ({ Type: opts.biff >= 8 ? blob.read_shift(2) : 0 }); /* wEncryptionType */
  	if(o.Type) parse_FilePassHeader(blob, length-2, o);
  	else parse_XORObfuscation(blob, opts.biff >= 8 ? length : length - 2, opts, o);
  	return o;
  }
  
  
  var RTF = (function() {
  	function rtf_to_sheet(d, opts) {
  		switch(opts.type) {
  			case 'base64': return rtf_to_sheet_str(Base64.decode(d), opts);
  			case 'binary': return rtf_to_sheet_str(d, opts);
  			case 'buffer': return rtf_to_sheet_str(d.toString('binary'), opts);
  			case 'array':  return rtf_to_sheet_str(cc2str(d), opts);
  		}
  		throw new Error("Unrecognized type " + opts.type);
  	}
  
  	function rtf_to_sheet_str(str, opts) {
  		var o = opts || {};
  		var ws = o.dense ? ([]) : ({});
  		var range = ({s: {c:0, r:0}, e: {c:0, r:0}});
  
  		// TODO: parse
  		if(!str.match(/\\trowd/)) throw new Error("RTF missing table");
  
  		ws['!ref'] = encode_range(range);
  		return ws;
  	}
  
  	function rtf_to_workbook(d, opts) { return sheet_to_workbook(rtf_to_sheet(d, opts), opts); }
  
  	/* TODO: this is a stub */
  	function sheet_to_rtf(ws) {
  		var o = ["{\\rtf1\\ansi"];
  		var r = safe_decode_range(ws['!ref']), cell;
  		var dense = Array.isArray(ws);
  		for(var R = r.s.r; R <= r.e.r; ++R) {
  			o.push("\\trowd\\trautofit1");
  			for(var C = r.s.c; C <= r.e.c; ++C) o.push("\\cellx" + (C+1));
  			o.push("\\pard\\intbl");
  			for(C = r.s.c; C <= r.e.c; ++C) {
  				var coord = encode_cell({r:R,c:C});
  				cell = dense ? (ws[R]||[])[C]: ws[coord];
  				if(!cell || cell.v == null && (!cell.f || cell.F)) continue;
  				o.push(" " + (cell.w || (format_cell(cell), cell.w)));
  				o.push("\\cell");
  			}
  			o.push("\\pard\\intbl\\row");
  		}
  		return o.join("") + "}";
  	}
  
  	return {
  		to_workbook: rtf_to_workbook,
  		to_sheet: rtf_to_sheet,
  		from_sheet: sheet_to_rtf
  	};
  })();
  function hex2RGB(h) {
  	var o = h.slice(h[0]==="#"?1:0).slice(0,6);
  	return [parseInt(o.slice(0,2),16),parseInt(o.slice(2,4),16),parseInt(o.slice(4,6),16)];
  }
  function rgb2Hex(rgb) {
  	for(var i=0,o=1; i!=3; ++i) o = o*256 + (rgb[i]>255?255:rgb[i]<0?0:rgb[i]);
  	return o.toString(16).toUpperCase().slice(1);
  }
  
  function rgb2HSL(rgb) {
  	var R = rgb[0]/255, G = rgb[1]/255, B=rgb[2]/255;
  	var M = Math.max(R, G, B), m = Math.min(R, G, B), C = M - m;
  	if(C === 0) return [0, 0, R];
  
  	var H6 = 0, S = 0, L2 = (M + m);
  	S = C / (L2 > 1 ? 2 - L2 : L2);
  	switch(M){
  		case R: H6 = ((G - B) / C + 6)%6; break;
  		case G: H6 = ((B - R) / C + 2); break;
  		case B: H6 = ((R - G) / C + 4); break;
  	}
  	return [H6 / 6, S, L2 / 2];
  }
  
  function hsl2RGB(hsl){
  	var H = hsl[0], S = hsl[1], L = hsl[2];
  	var C = S * 2 * (L < 0.5 ? L : 1 - L), m = L - C/2;
  	var rgb = [m,m,m], h6 = 6*H;
  
  	var X;
  	if(S !== 0) switch(h6|0) {
  		case 0: case 6: X = C * h6; rgb[0] += C; rgb[1] += X; break;
  		case 1: X = C * (2 - h6);   rgb[0] += X; rgb[1] += C; break;
  		case 2: X = C * (h6 - 2);   rgb[1] += C; rgb[2] += X; break;
  		case 3: X = C * (4 - h6);   rgb[1] += X; rgb[2] += C; break;
  		case 4: X = C * (h6 - 4);   rgb[2] += C; rgb[0] += X; break;
  		case 5: X = C * (6 - h6);   rgb[2] += X; rgb[0] += C; break;
  	}
  	for(var i = 0; i != 3; ++i) rgb[i] = Math.round(rgb[i]*255);
  	return rgb;
  }
  
  /* 18.8.3 bgColor tint algorithm */
  function rgb_tint(hex, tint) {
  	if(tint === 0) return hex;
  	var hsl = rgb2HSL(hex2RGB(hex));
  	if (tint < 0) hsl[2] = hsl[2] * (1 + tint);
  	else hsl[2] = 1 - (1 - hsl[2]) * (1 - tint);
  	return rgb2Hex(hsl2RGB(hsl));
  }
  
  /* 18.3.1.13 width calculations */
  /* [MS-OI29500] 2.1.595 Column Width & Formatting */
  var DEF_MDW = 6, MAX_MDW = 15, MIN_MDW = 1, MDW = DEF_MDW;
  function width2px(width) { return Math.floor(( width + (Math.round(128/MDW))/256 )* MDW ); }
  function px2char(px) { return (Math.floor((px - 5)/MDW * 100 + 0.5))/100; }
  function char2width(chr) { return (Math.round((chr * MDW + 5)/MDW*256))/256; }
  //function px2char_(px) { return (((px - 5)/MDW * 100 + 0.5))/100; }
  //function char2width_(chr) { return (((chr * MDW + 5)/MDW*256))/256; }
  function cycle_width(collw) { return char2width(px2char(width2px(collw))); }
  /* XLSX/XLSB/XLS specify width in units of MDW */
  function find_mdw_colw(collw) {
  	var delta = Math.abs(collw - cycle_width(collw)), _MDW = MDW;
  	if(delta > 0.005) for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) if(Math.abs(collw - cycle_width(collw)) <= delta) { delta = Math.abs(collw - cycle_width(collw)); _MDW = MDW; }
  	MDW = _MDW;
  }
  /* XLML specifies width in terms of pixels */
  /*function find_mdw_wpx(wpx) {
  	var delta = Infinity, guess = 0, _MDW = MIN_MDW;
  	for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) {
  		guess = char2width_(px2char_(wpx))*256;
  		guess = (guess) % 1;
  		if(guess > 0.5) guess--;
  		if(Math.abs(guess) < delta) { delta = Math.abs(guess); _MDW = MDW; }
  	}
  	MDW = _MDW;
  }*/
  
  function process_col(coll) {
  	if(coll.width) {
  		coll.wpx = width2px(coll.width);
  		coll.wch = px2char(coll.wpx);
  		coll.MDW = MDW;
  	} else if(coll.wpx) {
  		coll.wch = px2char(coll.wpx);
  		coll.width = char2width(coll.wch);
  		coll.MDW = MDW;
  	} else if(typeof coll.wch == 'number') {
  		coll.width = char2width(coll.wch);
  		coll.wpx = width2px(coll.width);
  		coll.MDW = MDW;
  	}
  	if(coll.customWidth) delete coll.customWidth;
  }
  
  var DEF_PPI = 96, PPI = DEF_PPI;
  function px2pt(px) { return px * 96 / PPI; }
  function pt2px(pt) { return pt * PPI / 96; }
  
  /* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
  var XLMLPatternTypeMap = {
  	"None": "none",
  	"Solid": "solid",
  	"Gray50": "mediumGray",
  	"Gray75": "darkGray",
  	"Gray25": "lightGray",
  	"HorzStripe": "darkHorizontal",
  	"VertStripe": "darkVertical",
  	"ReverseDiagStripe": "darkDown",
  	"DiagStripe": "darkUp",
  	"DiagCross": "darkGrid",
  	"ThickDiagCross": "darkTrellis",
  	"ThinHorzStripe": "lightHorizontal",
  	"ThinVertStripe": "lightVertical",
  	"ThinReverseDiagStripe": "lightDown",
  	"ThinHorzCross": "lightGrid"
  };
  
  /* 18.8.5 borders CT_Borders */
  function parse_borders(t, styles, themes, opts) {
  	styles.Borders = [];
  	var border = {}/*, sub_border = {}*/;
  	var pass = false;
  	t[0].match(tagregex).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(strip_ns(y[0])) {
  			case '<borders': case '<borders>': case '</borders>': break;
  
  			/* 18.8.4 border CT_Border */
  			case '<border': case '<border>': case '<border/>':
  				border = {};
  				if (y.diagonalUp) { border.diagonalUp = y.diagonalUp; }
  				if (y.diagonalDown) { border.diagonalDown = y.diagonalDown; }
  				styles.Borders.push(border);
  				break;
  			case '</border>': break;
  
  			/* note: not in spec, appears to be CT_BorderPr */
  			case '<left/>': break;
  			case '<left': case '<left>': break;
  			case '</left>': break;
  
  			/* note: not in spec, appears to be CT_BorderPr */
  			case '<right/>': break;
  			case '<right': case '<right>': break;
  			case '</right>': break;
  
  			/* 18.8.43 top CT_BorderPr */
  			case '<top/>': break;
  			case '<top': case '<top>': break;
  			case '</top>': break;
  
  			/* 18.8.6 bottom CT_BorderPr */
  			case '<bottom/>': break;
  			case '<bottom': case '<bottom>': break;
  			case '</bottom>': break;
  
  			/* 18.8.13 diagonal CT_BorderPr */
  			case '<diagonal': case '<diagonal>': case '<diagonal/>': break;
  			case '</diagonal>': break;
  
  			/* 18.8.25 horizontal CT_BorderPr */
  			case '<horizontal': case '<horizontal>': case '<horizontal/>': break;
  			case '</horizontal>': break;
  
  			/* 18.8.44 vertical CT_BorderPr */
  			case '<vertical': case '<vertical>': case '<vertical/>': break;
  			case '</vertical>': break;
  
  			/* 18.8.37 start CT_BorderPr */
  			case '<start': case '<start>': case '<start/>': break;
  			case '</start>': break;
  
  			/* 18.8.16 end CT_BorderPr */
  			case '<end': case '<end>': case '<end/>': break;
  			case '</end>': break;
  
  			/* 18.8.? color CT_Color */
  			case '<color': case '<color>': break;
  			case '<color/>': case '</color>': break;
  
  			/* 18.2.10 extLst CT_ExtensionList ? */
  			case '<extLst': case '<extLst>': case '</extLst>': break;
  			case '<ext': pass = true; break;
  			case '</ext>': pass = false; break;
  			default: if(opts && opts.WTF) {
  				if(!pass) throw new Error('unrecognized ' + y[0] + ' in borders');
  			}
  		}
  	});
  }
  
  /* 18.8.21 fills CT_Fills */
  function parse_fills(t, styles, themes, opts) {
  	styles.Fills = [];
  	var fill = {};
  	var pass = false;
  	t[0].match(tagregex).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(strip_ns(y[0])) {
  			case '<fills': case '<fills>': case '</fills>': break;
  
  			/* 18.8.20 fill CT_Fill */
  			case '<fill>': case '<fill': case '<fill/>':
  				fill = {}; styles.Fills.push(fill); break;
  			case '</fill>': break;
  
  			/* 18.8.24 gradientFill CT_GradientFill */
  			case '<gradientFill>': break;
  			case '<gradientFill':
  			case '</gradientFill>': styles.Fills.push(fill); fill = {}; break;
  
  			/* 18.8.32 patternFill CT_PatternFill */
  			case '<patternFill': case '<patternFill>':
  				if(y.patternType) fill.patternType = y.patternType;
  				break;
  			case '<patternFill/>': case '</patternFill>': break;
  
  			/* 18.8.3 bgColor CT_Color */
  			case '<bgColor':
  				if(!fill.bgColor) fill.bgColor = {};
  				if(y.indexed) fill.bgColor.indexed = parseInt(y.indexed, 10);
  				if(y.theme) fill.bgColor.theme = parseInt(y.theme, 10);
  				if(y.tint) fill.bgColor.tint = parseFloat(y.tint);
  				/* Excel uses ARGB strings */
  				if(y.rgb) fill.bgColor.rgb = y.rgb.slice(-6);
  				break;
  			case '<bgColor/>': case '</bgColor>': break;
  
  			/* 18.8.19 fgColor CT_Color */
  			case '<fgColor':
  				if(!fill.fgColor) fill.fgColor = {};
  				if(y.theme) fill.fgColor.theme = parseInt(y.theme, 10);
  				if(y.tint) fill.fgColor.tint = parseFloat(y.tint);
  				/* Excel uses ARGB strings */
  				if(y.rgb) fill.fgColor.rgb = y.rgb.slice(-6);
  				break;
  			case '<fgColor/>': case '</fgColor>': break;
  
  			/* 18.8.38 stop CT_GradientStop */
  			case '<stop': case '<stop/>': break;
  			case '</stop>': break;
  
  			/* 18.8.? color CT_Color */
  			case '<color': case '<color/>': break;
  			case '</color>': break;
  
  			/* 18.2.10 extLst CT_ExtensionList ? */
  			case '<extLst': case '<extLst>': case '</extLst>': break;
  			case '<ext': pass = true; break;
  			case '</ext>': pass = false; break;
  			default: if(opts && opts.WTF) {
  				if(!pass) throw new Error('unrecognized ' + y[0] + ' in fills');
  			}
  		}
  	});
  }
  
  /* 18.8.23 fonts CT_Fonts */
  function parse_fonts(t, styles, themes, opts) {
  	styles.Fonts = [];
  	var font = {};
  	var pass = false;
  	t[0].match(tagregex).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(strip_ns(y[0])) {
  			case '<fonts': case '<fonts>': case '</fonts>': break;
  
  			/* 18.8.22 font CT_Font */
  			case '<font': case '<font>': break;
  			case '</font>': case '<font/>':
  				styles.Fonts.push(font);
  				font = {};
  				break;
  
  			/* 18.8.29 name CT_FontName */
  			case '<name': if(y.val) font.name = y.val; break;
  			case '<name/>': case '</name>': break;
  
  			/* 18.8.2  b CT_BooleanProperty */
  			case '<b': font.bold = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<b/>': font.bold = 1; break;
  
  			/* 18.8.26 i CT_BooleanProperty */
  			case '<i': font.italic = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<i/>': font.italic = 1; break;
  
  			/* 18.4.13 u CT_UnderlineProperty */
  			case '<u':
  				switch(y.val) {
  					case "none": font.underline = 0x00; break;
  					case "single": font.underline = 0x01; break;
  					case "double": font.underline = 0x02; break;
  					case "singleAccounting": font.underline = 0x21; break;
  					case "doubleAccounting": font.underline = 0x22; break;
  				} break;
  			case '<u/>': font.underline = 1; break;
  
  			/* 18.4.10 strike CT_BooleanProperty */
  			case '<strike': font.strike = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<strike/>': font.strike = 1; break;
  
  			/* 18.4.2  outline CT_BooleanProperty */
  			case '<outline': font.outline = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<outline/>': font.outline = 1; break;
  
  			/* 18.8.36 shadow CT_BooleanProperty */
  			case '<shadow': font.shadow = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<shadow/>': font.shadow = 1; break;
  
  			/* 18.8.12 condense CT_BooleanProperty */
  			case '<condense': font.condense = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<condense/>': font.condense = 1; break;
  
  			/* 18.8.17 extend CT_BooleanProperty */
  			case '<extend': font.extend = y.val ? parsexmlbool(y.val) : 1; break;
  			case '<extend/>': font.extend = 1; break;
  
  			/* 18.4.11 sz CT_FontSize */
  			case '<sz': if(y.val) font.sz = +y.val; break;
  			case '<sz/>': case '</sz>': break;
  
  			/* 18.4.14 vertAlign CT_VerticalAlignFontProperty */
  			case '<vertAlign': if(y.val) font.vertAlign = y.val; break;
  			case '<vertAlign/>': case '</vertAlign>': break;
  
  			/* 18.8.18 family CT_FontFamily */
  			case '<family': if(y.val) font.family = parseInt(y.val,10); break;
  			case '<family/>': case '</family>': break;
  
  			/* 18.8.35 scheme CT_FontScheme */
  			case '<scheme': if(y.val) font.scheme = y.val; break;
  			case '<scheme/>': case '</scheme>': break;
  
  			/* 18.4.1 charset CT_IntProperty */
  			case '<charset':
  				if(y.val == '1') break;
  				y.codepage = CS2CP[parseInt(y.val, 10)];
  				break;
  
  			/* 18.?.? color CT_Color */
  			case '<color':
  				if(!font.color) font.color = {};
  				if(y.auto) font.color.auto = parsexmlbool(y.auto);
  
  				if(y.rgb) font.color.rgb = y.rgb.slice(-6);
  				else if(y.indexed) {
  					font.color.index = parseInt(y.indexed, 10);
  					var icv = XLSIcv[font.color.index];
  					if(font.color.index == 81) icv = XLSIcv[1];
  					if(!icv) throw new Error(x);
  					font.color.rgb = icv[0].toString(16) + icv[1].toString(16) + icv[2].toString(16);
  				} else if(y.theme) {
  					font.color.theme = parseInt(y.theme, 10);
  					if(y.tint) font.color.tint = parseFloat(y.tint);
  					if(y.theme && themes.themeElements && themes.themeElements.clrScheme) {
  						font.color.rgb = rgb_tint(themes.themeElements.clrScheme[font.color.theme].rgb, font.color.tint || 0);
  					}
  				}
  
  				break;
  			case '<color/>': case '</color>': break;
  
  			/* 18.2.10 extLst CT_ExtensionList ? */
  			case '<extLst': case '<extLst>': case '</extLst>': break;
  			case '<ext': pass = true; break;
  			case '</ext>': pass = false; break;
  			default: if(opts && opts.WTF) {
  				if(!pass) throw new Error('unrecognized ' + y[0] + ' in fonts');
  			}
  		}
  	});
  }
  
  /* 18.8.31 numFmts CT_NumFmts */
  function parse_numFmts(t, styles, opts) {
  	styles.NumberFmt = [];
  	var k/*Array<number>*/ = (keys(SSF._table));
  	for(var i=0; i < k.length; ++i) styles.NumberFmt[k[i]] = SSF._table[k[i]];
  	var m = t[0].match(tagregex);
  	if(!m) return;
  	for(i=0; i < m.length; ++i) {
  		var y = parsexmltag(m[i]);
  		switch(strip_ns(y[0])) {
  			case '<numFmts': case '</numFmts>': case '<numFmts/>': case '<numFmts>': break;
  			case '<numFmt': {
  				var f=unescapexml(utf8read(y.formatCode)), j=parseInt(y.numFmtId,10);
  				styles.NumberFmt[j] = f;
  				if(j>0) {
  					if(j > 0x188) {
  						for(j = 0x188; j > 0x3c; --j) if(styles.NumberFmt[j] == null) break;
  						styles.NumberFmt[j] = f;
  					}
  					SSF.load(f,j);
  				}
  			} break;
  			case '</numFmt>': break;
  			default: if(opts.WTF) throw new Error('unrecognized ' + y[0] + ' in numFmts');
  		}
  	}
  }
  
  function write_numFmts(NF) {
  	var o = ["<numFmts>"];
  	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
  		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) o[o.length] = (writextag('numFmt',null,{numFmtId:i,formatCode:escapexml(NF[i])}));
  	});
  	if(o.length === 1) return "";
  	o[o.length] = ("</numFmts>");
  	o[0] = writextag('numFmts', null, { count:o.length-2 }).replace("/>", ">");
  	return o.join("");
  }
  
  /* 18.8.10 cellXfs CT_CellXfs */
  var cellXF_uint = [ "numFmtId", "fillId", "fontId", "borderId", "xfId" ];
  var cellXF_bool = [ "applyAlignment", "applyBorder", "applyFill", "applyFont", "applyNumberFormat", "applyProtection", "pivotButton", "quotePrefix" ];
  function parse_cellXfs(t, styles, opts) {
  	styles.CellXf = [];
  	var xf;
  	var pass = false;
  	t[0].match(tagregex).forEach(function(x) {
  		var y = parsexmltag(x), i = 0;
  		switch(strip_ns(y[0])) {
  			case '<cellXfs': case '<cellXfs>': case '<cellXfs/>': case '</cellXfs>': break;
  
  			/* 18.8.45 xf CT_Xf */
  			case '<xf': case '<xf/>':
  				xf = y;
  				delete xf[0];
  				for(i = 0; i < cellXF_uint.length; ++i) if(xf[cellXF_uint[i]])
  					xf[cellXF_uint[i]] = parseInt(xf[cellXF_uint[i]], 10);
  				for(i = 0; i < cellXF_bool.length; ++i) if(xf[cellXF_bool[i]])
  					xf[cellXF_bool[i]] = parsexmlbool(xf[cellXF_bool[i]]);
  				if(xf.numFmtId > 0x188) {
  					for(i = 0x188; i > 0x3c; --i) if(styles.NumberFmt[xf.numFmtId] == styles.NumberFmt[i]) { xf.numFmtId = i; break; }
  				}
  				styles.CellXf.push(xf); break;
  			case '</xf>': break;
  
  			/* 18.8.1 alignment CT_CellAlignment */
  			case '<alignment': case '<alignment/>':
  				var alignment = {};
  				if(y.vertical) alignment.vertical = y.vertical;
  				if(y.horizontal) alignment.horizontal = y.horizontal;
  				if(y.textRotation != null) alignment.textRotation = y.textRotation;
  				if(y.indent) alignment.indent = y.indent;
  				if(y.wrapText) alignment.wrapText = y.wrapText;
  				xf.alignment = alignment;
  				break;
  			case '</alignment>': break;
  
  			/* 18.8.33 protection CT_CellProtection */
  			case '<protection': case '</protection>': case '<protection/>': break;
  
  			/* 18.2.10 extLst CT_ExtensionList ? */
  			case '<extLst': case '<extLst>': case '</extLst>': break;
  			case '<ext': pass = true; break;
  			case '</ext>': pass = false; break;
  			default: if(opts && opts.WTF) {
  				if(!pass) throw new Error('unrecognized ' + y[0] + ' in cellXfs');
  			}
  		}
  	});
  }
  
  function write_cellXfs(cellXfs) {
  	var o = [];
  	o[o.length] = (writextag('cellXfs',null));
  	cellXfs.forEach(function(c) { o[o.length] = (writextag('xf', null, c)); });
  	o[o.length] = ("</cellXfs>");
  	if(o.length === 2) return "";
  	o[0] = writextag('cellXfs',null, {count:o.length-2}).replace("/>",">");
  	return o.join("");
  }
  
  /* 18.8 Styles CT_Stylesheet*/
  var parse_sty_xml= (function make_pstyx() {
  var numFmtRegex = /<(?:\w+:)?numFmts([^>]*)>[\S\s]*?<\/(?:\w+:)?numFmts>/;
  var cellXfRegex = /<(?:\w+:)?cellXfs([^>]*)>[\S\s]*?<\/(?:\w+:)?cellXfs>/;
  var fillsRegex = /<(?:\w+:)?fills([^>]*)>[\S\s]*?<\/(?:\w+:)?fills>/;
  var fontsRegex = /<(?:\w+:)?fonts([^>]*)>[\S\s]*?<\/(?:\w+:)?fonts>/;
  var bordersRegex = /<(?:\w+:)?borders([^>]*)>[\S\s]*?<\/(?:\w+:)?borders>/;
  
  return function parse_sty_xml(data, themes, opts) {
  	var styles = {};
  	if(!data) return styles;
  	data = data.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
  	/* 18.8.39 styleSheet CT_Stylesheet */
  	var t;
  
  	/* 18.8.31 numFmts CT_NumFmts ? */
  	if((t=data.match(numFmtRegex))) parse_numFmts(t, styles, opts);
  
  	/* 18.8.23 fonts CT_Fonts ? */
  	if((t=data.match(fontsRegex))) parse_fonts(t, styles, themes, opts);
  
  	/* 18.8.21 fills CT_Fills ? */
  	if((t=data.match(fillsRegex))) parse_fills(t, styles, themes, opts);
  
  	/* 18.8.5  borders CT_Borders ? */
  	if((t=data.match(bordersRegex))) parse_borders(t, styles, themes, opts);
  
  	/* 18.8.9  cellStyleXfs CT_CellStyleXfs ? */
  
  	/* 18.8.10 cellXfs CT_CellXfs ? */
  	if((t=data.match(cellXfRegex))) parse_cellXfs(t, styles, opts);
  
  	/* 18.8.8  cellStyles CT_CellStyles ? */
  	/* 18.8.15 dxfs CT_Dxfs ? */
  	/* 18.8.42 tableStyles CT_TableStyles ? */
  	/* 18.8.11 colors CT_Colors ? */
  	/* 18.2.10 extLst CT_ExtensionList ? */
  
  	return styles;
  };
  })();
  
  var STYLES_XML_ROOT = writextag('styleSheet', null, {
  	'xmlns': XMLNS.main[0],
  	'xmlns:vt': XMLNS.vt
  });
  
  RELS.STY = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";
  
  function write_sty_xml(wb, opts) {
  	var o = [XML_HEADER, STYLES_XML_ROOT], w;
  	if(wb.SSF && (w = write_numFmts(wb.SSF)) != null) o[o.length] = w;
  	o[o.length] = ('<fonts count="1"><font><sz val="12"/><color theme="1"/><name val="Calibri"/><family val="2"/><scheme val="minor"/></font></fonts>');
  	o[o.length] = ('<fills count="2"><fill><patternFill patternType="none"/></fill><fill><patternFill patternType="gray125"/></fill></fills>');
  	o[o.length] = ('<borders count="1"><border><left/><right/><top/><bottom/><diagonal/></border></borders>');
  	o[o.length] = ('<cellStyleXfs count="1"><xf numFmtId="0" fontId="0" fillId="0" borderId="0"/></cellStyleXfs>');
  	if((w = write_cellXfs(opts.cellXfs))) o[o.length] = (w);
  	o[o.length] = ('<cellStyles count="1"><cellStyle name="Normal" xfId="0" builtinId="0"/></cellStyles>');
  	o[o.length] = ('<dxfs count="0"/>');
  	o[o.length] = ('<tableStyles count="0" defaultTableStyle="TableStyleMedium9" defaultPivotStyle="PivotStyleMedium4"/>');
  
  	if(o.length>2){ o[o.length] = ('</styleSheet>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* [MS-XLSB] 2.4.657 BrtFmt */
  function parse_BrtFmt(data, length) {
  	var numFmtId = data.read_shift(2);
  	var stFmtCode = parse_XLWideString(data,length-2);
  	return [numFmtId, stFmtCode];
  }
  function write_BrtFmt(i, f, o) {
  	if(!o) o = new_buf(6 + 4 * f.length);
  	o.write_shift(2, i);
  	write_XLWideString(f, o);
  	var out = (o.length > o.l) ? o.slice(0, o.l) : o;
  	if(o.l == null) o.l = o.length;
  	return out;
  }
  
  /* [MS-XLSB] 2.4.659 BrtFont TODO */
  function parse_BrtFont(data, length, opts) {
  	var out = ({});
  
  	out.sz = data.read_shift(2) / 20;
  
  	var grbit = parse_FontFlags(data, 2, opts);
  	if(grbit.fCondense) out.condense = 1;
  	if(grbit.fExtend) out.extend = 1;
  	if(grbit.fShadow) out.shadow = 1;
  	if(grbit.fOutline) out.outline = 1;
  	if(grbit.fStrikeout) out.strike = 1;
  	if(grbit.fItalic) out.italic = 1;
  
  	var bls = data.read_shift(2);
  	if(bls === 0x02BC) out.bold = 1;
  
  	switch(data.read_shift(2)) {
  		/* case 0: out.vertAlign = "baseline"; break; */
  		case 1: out.vertAlign = "superscript"; break;
  		case 2: out.vertAlign = "subscript"; break;
  	}
  
  	var underline = data.read_shift(1);
  	if(underline != 0) out.underline = underline;
  
  	var family = data.read_shift(1);
  	if(family > 0) out.family = family;
  
  	var bCharSet = data.read_shift(1);
  	if(bCharSet > 0) out.charset = bCharSet;
  
  	data.l++;
  	out.color = parse_BrtColor(data, 8);
  
  	switch(data.read_shift(1)) {
  		/* case 0: out.scheme = "none": break; */
  		case 1: out.scheme = "major"; break;
  		case 2: out.scheme = "minor"; break;
  	}
  
  	out.name = parse_XLWideString(data, length - 21);
  
  	return out;
  }
  function write_BrtFont(font, o) {
  	if(!o) o = new_buf(25+4*32);
  	o.write_shift(2, font.sz * 20);
  	write_FontFlags(font, o);
  	o.write_shift(2, font.bold ? 0x02BC : 0x0190);
  	var sss = 0;
  	if(font.vertAlign == "superscript") sss = 1;
  	else if(font.vertAlign == "subscript") sss = 2;
  	o.write_shift(2, sss);
  	o.write_shift(1, font.underline || 0);
  	o.write_shift(1, font.family || 0);
  	o.write_shift(1, font.charset || 0);
  	o.write_shift(1, 0);
  	write_BrtColor(font.color, o);
  	var scheme = 0;
  	if(font.scheme == "major") scheme = 1;
  	if(font.scheme == "minor") scheme = 2;
  	o.write_shift(1, scheme);
  	write_XLWideString(font.name, o);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.650 BrtFill */
  var XLSBFillPTNames = [
  	"none",
  	"solid",
  	"mediumGray",
  	"darkGray",
  	"lightGray",
  	"darkHorizontal",
  	"darkVertical",
  	"darkDown",
  	"darkUp",
  	"darkGrid",
  	"darkTrellis",
  	"lightHorizontal",
  	"lightVertical",
  	"lightDown",
  	"lightUp",
  	"lightGrid",
  	"lightTrellis",
  	"gray125",
  	"gray0625"
  ];
  var rev_XLSBFillPTNames = (evert(XLSBFillPTNames));
  /* TODO: gradient fill representation */
  var parse_BrtFill = parsenoop;
  function write_BrtFill(fill, o) {
  	if(!o) o = new_buf(4*3 + 8*7 + 16*1);
  	var fls = rev_XLSBFillPTNames[fill.patternType];
  	if(fls == null) fls = 0x28;
  	o.write_shift(4, fls);
  	var j = 0;
  	if(fls != 0x28) {
  		/* TODO: custom FG Color */
  		write_BrtColor({auto:1}, o);
  		/* TODO: custom BG Color */
  		write_BrtColor({auto:1}, o);
  
  		for(; j < 12; ++j) o.write_shift(4, 0);
  	} else {
  		for(; j < 4; ++j) o.write_shift(4, 0);
  
  		for(; j < 12; ++j) o.write_shift(4, 0); /* TODO */
  		/* iGradientType */
  		/* xnumDegree */
  		/* xnumFillToLeft */
  		/* xnumFillToRight */
  		/* xnumFillToTop */
  		/* xnumFillToBottom */
  		/* cNumStop */
  		/* xfillGradientStop */
  	}
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.824 BrtXF */
  function parse_BrtXF(data, length) {
  	var tgt = data.l + length;
  	var ixfeParent = data.read_shift(2);
  	var ifmt = data.read_shift(2);
  	data.l = tgt;
  	return {ixfe:ixfeParent, numFmtId:ifmt };
  }
  function write_BrtXF(data, ixfeP, o) {
  	if(!o) o = new_buf(16);
  	o.write_shift(2, ixfeP||0);
  	o.write_shift(2, data.numFmtId||0);
  	o.write_shift(2, 0); /* iFont */
  	o.write_shift(2, 0); /* iFill */
  	o.write_shift(2, 0); /* ixBorder */
  	o.write_shift(1, 0); /* trot */
  	o.write_shift(1, 0); /* indent */
  	o.write_shift(1, 0); /* flags */
  	o.write_shift(1, 0); /* flags */
  	o.write_shift(1, 0); /* xfGrbitAtr */
  	o.write_shift(1, 0);
  	return o;
  }
  
  /* [MS-XLSB] 2.5.4 Blxf TODO */
  function write_Blxf(data, o) {
  	if(!o) o = new_buf(10);
  	o.write_shift(1, 0); /* dg */
  	o.write_shift(1, 0);
  	o.write_shift(4, 0); /* color */
  	o.write_shift(4, 0); /* color */
  	return o;
  }
  /* [MS-XLSB] 2.4.302 BrtBorder TODO */
  var parse_BrtBorder = parsenoop;
  function write_BrtBorder(border, o) {
  	if(!o) o = new_buf(51);
  	o.write_shift(1, 0); /* diagonal */
  	write_Blxf(null, o); /* top */
  	write_Blxf(null, o); /* bottom */
  	write_Blxf(null, o); /* left */
  	write_Blxf(null, o); /* right */
  	write_Blxf(null, o); /* diag */
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.763 BrtStyle TODO */
  function write_BrtStyle(style, o) {
  	if(!o) o = new_buf(12+4*10);
  	o.write_shift(4, style.xfId);
  	o.write_shift(2, 1);
  	o.write_shift(1, +style.builtinId);
  	o.write_shift(1, 0); /* iLevel */
  	write_XLNullableWideString(style.name || "", o);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.272 BrtBeginTableStyles */
  function write_BrtBeginTableStyles(cnt, defTableStyle, defPivotStyle) {
  	var o = new_buf(4+256*2*4);
  	o.write_shift(4, cnt);
  	write_XLNullableWideString(defTableStyle, o);
  	write_XLNullableWideString(defPivotStyle, o);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.1.7.50 Styles */
  function parse_sty_bin(data, themes, opts) {
  	var styles = {};
  	styles.NumberFmt = ([]);
  	for(var y in SSF._table) styles.NumberFmt[y] = SSF._table[y];
  
  	styles.CellXf = [];
  	styles.Fonts = [];
  	var state = [];
  	var pass = false;
  	recordhopper(data, function hopper_sty(val, R_n, RT) {
  		switch(RT) {
  			case 0x002C: /* 'BrtFmt' */
  				styles.NumberFmt[val[0]] = val[1]; SSF.load(val[1], val[0]);
  				break;
  			case 0x002B: /* 'BrtFont' */
  				styles.Fonts.push(val);
  				if(val.color.theme != null && themes && themes.themeElements && themes.themeElements.clrScheme) {
  					val.color.rgb = rgb_tint(themes.themeElements.clrScheme[val.color.theme].rgb, val.color.tint || 0);
  				}
  				break;
  			case 0x0401: /* 'BrtKnownFonts' */ break;
  			case 0x002D: /* 'BrtFill' */ break;
  			case 0x002E: /* 'BrtBorder' */ break;
  			case 0x002F: /* 'BrtXF' */
  				if(state[state.length - 1] == "BrtBeginCellXFs") {
  					styles.CellXf.push(val);
  				}
  				break;
  			case 0x0030: /* 'BrtStyle' */
  			case 0x01FB: /* 'BrtDXF' */
  			case 0x023C: /* 'BrtMRUColor' */
  			case 0x01DB: /* 'BrtIndexedColor': */
  				break;
  
  			case 0x0493: /* 'BrtDXF14' */
  			case 0x0836: /* 'BrtDXF15' */
  			case 0x046A: /* 'BrtSlicerStyleElement' */
  			case 0x0200: /* 'BrtTableStyleElement' */
  			case 0x082F: /* 'BrtTimelineStyleElement' */
  			case 0x0C00: /* 'BrtUid' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  			case 0x0025: /* 'BrtACBegin' */
  				state.push(R_n); break;
  			case 0x0026: /* 'BrtACEnd' */
  				state.pop(); break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
  				else if((R_n||"").indexOf("End") > 0) state.pop();
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	});
  	return styles;
  }
  
  function write_FMTS_bin(ba, NF) {
  	if(!NF) return;
  	var cnt = 0;
  	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
  for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) ++cnt;
  	});
  
  	if(cnt == 0) return;
  	write_record(ba, "BrtBeginFmts", write_UInt32LE(cnt));
  	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
  for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_record(ba, "BrtFmt", write_BrtFmt(i, NF[i]));
  	});
  	write_record(ba, "BrtEndFmts");
  }
  
  function write_FONTS_bin(ba) {
  	var cnt = 1;
  
  	if(cnt == 0) return;
  	write_record(ba, "BrtBeginFonts", write_UInt32LE(cnt));
  	write_record(ba, "BrtFont", write_BrtFont({
  		sz:12,
  		color: {theme:1},
  		name: "Calibri",
  		family: 2,
  		scheme: "minor"
  	}));
  	/* 1*65491BrtFont [ACFONTS] */
  	write_record(ba, "BrtEndFonts");
  }
  
  function write_FILLS_bin(ba) {
  	var cnt = 2;
  
  	if(cnt == 0) return;
  	write_record(ba, "BrtBeginFills", write_UInt32LE(cnt));
  	write_record(ba, "BrtFill", write_BrtFill({patternType:"none"}));
  	write_record(ba, "BrtFill", write_BrtFill({patternType:"gray125"}));
  	/* 1*65431BrtFill */
  	write_record(ba, "BrtEndFills");
  }
  
  function write_BORDERS_bin(ba) {
  	var cnt = 1;
  
  	if(cnt == 0) return;
  	write_record(ba, "BrtBeginBorders", write_UInt32LE(cnt));
  	write_record(ba, "BrtBorder", write_BrtBorder({}));
  	/* 1*65430BrtBorder */
  	write_record(ba, "BrtEndBorders");
  }
  
  function write_CELLSTYLEXFS_bin(ba) {
  	var cnt = 1;
  	write_record(ba, "BrtBeginCellStyleXFs", write_UInt32LE(cnt));
  	write_record(ba, "BrtXF", write_BrtXF({
  		numFmtId:0,
  		fontId:0,
  		fillId:0,
  		borderId:0
  	}, 0xFFFF));
  	/* 1*65430(BrtXF *FRT) */
  	write_record(ba, "BrtEndCellStyleXFs");
  }
  
  function write_CELLXFS_bin(ba, data) {
  	write_record(ba, "BrtBeginCellXFs", write_UInt32LE(data.length));
  	data.forEach(function(c) { write_record(ba, "BrtXF", write_BrtXF(c,0)); });
  	/* 1*65430(BrtXF *FRT) */
  	write_record(ba, "BrtEndCellXFs");
  }
  
  function write_STYLES_bin(ba) {
  	var cnt = 1;
  
  	write_record(ba, "BrtBeginStyles", write_UInt32LE(cnt));
  	write_record(ba, "BrtStyle", write_BrtStyle({
  		xfId:0,
  		builtinId:0,
  		name:"Normal"
  	}));
  	/* 1*65430(BrtStyle *FRT) */
  	write_record(ba, "BrtEndStyles");
  }
  
  function write_DXFS_bin(ba) {
  	var cnt = 0;
  
  	write_record(ba, "BrtBeginDXFs", write_UInt32LE(cnt));
  	/* *2147483647(BrtDXF *FRT) */
  	write_record(ba, "BrtEndDXFs");
  }
  
  function write_TABLESTYLES_bin(ba) {
  	var cnt = 0;
  
  	write_record(ba, "BrtBeginTableStyles", write_BrtBeginTableStyles(cnt, "TableStyleMedium9", "PivotStyleMedium4"));
  	/* *TABLESTYLE */
  	write_record(ba, "BrtEndTableStyles");
  }
  
  function write_COLORPALETTE_bin() {
  	return;
  	/* BrtBeginColorPalette [INDEXEDCOLORS] [MRUCOLORS] BrtEndColorPalette */
  }
  
  /* [MS-XLSB] 2.1.7.50 Styles */
  function write_sty_bin(wb, opts) {
  	var ba = buf_array();
  	write_record(ba, "BrtBeginStyleSheet");
  	write_FMTS_bin(ba, wb.SSF);
  	write_FONTS_bin(ba, wb);
  	write_FILLS_bin(ba, wb);
  	write_BORDERS_bin(ba, wb);
  	write_CELLSTYLEXFS_bin(ba, wb);
  	write_CELLXFS_bin(ba, opts.cellXfs);
  	write_STYLES_bin(ba, wb);
  	write_DXFS_bin(ba, wb);
  	write_TABLESTYLES_bin(ba, wb);
  	write_COLORPALETTE_bin(ba, wb);
  	/* FRTSTYLESHEET*/
  	write_record(ba, "BrtEndStyleSheet");
  	return ba.end();
  }
  RELS.THEME = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme";
  
  /* 20.1.6.2 clrScheme CT_ColorScheme */
  function parse_clrScheme(t, themes, opts) {
  	themes.themeElements.clrScheme = [];
  	var color = {};
  	(t[0].match(tagregex)||[]).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(y[0]) {
  			/* 20.1.6.2 clrScheme (Color Scheme) CT_ColorScheme */
  			case '<a:clrScheme': case '</a:clrScheme>': break;
  
  			/* 20.1.2.3.32 srgbClr CT_SRgbColor */
  			case '<a:srgbClr':
  				color.rgb = y.val; break;
  
  			/* 20.1.2.3.33 sysClr CT_SystemColor */
  			case '<a:sysClr':
  				color.rgb = y.lastClr; break;
  
  			/* 20.1.4.1.1 accent1 (Accent 1) */
  			/* 20.1.4.1.2 accent2 (Accent 2) */
  			/* 20.1.4.1.3 accent3 (Accent 3) */
  			/* 20.1.4.1.4 accent4 (Accent 4) */
  			/* 20.1.4.1.5 accent5 (Accent 5) */
  			/* 20.1.4.1.6 accent6 (Accent 6) */
  			/* 20.1.4.1.9 dk1 (Dark 1) */
  			/* 20.1.4.1.10 dk2 (Dark 2) */
  			/* 20.1.4.1.15 folHlink (Followed Hyperlink) */
  			/* 20.1.4.1.19 hlink (Hyperlink) */
  			/* 20.1.4.1.22 lt1 (Light 1) */
  			/* 20.1.4.1.23 lt2 (Light 2) */
  			case '<a:dk1>': case '</a:dk1>':
  			case '<a:lt1>': case '</a:lt1>':
  			case '<a:dk2>': case '</a:dk2>':
  			case '<a:lt2>': case '</a:lt2>':
  			case '<a:accent1>': case '</a:accent1>':
  			case '<a:accent2>': case '</a:accent2>':
  			case '<a:accent3>': case '</a:accent3>':
  			case '<a:accent4>': case '</a:accent4>':
  			case '<a:accent5>': case '</a:accent5>':
  			case '<a:accent6>': case '</a:accent6>':
  			case '<a:hlink>': case '</a:hlink>':
  			case '<a:folHlink>': case '</a:folHlink>':
  				if (y[0].charAt(1) === '/') {
  					themes.themeElements.clrScheme.push(color);
  					color = {};
  				} else {
  					color.name = y[0].slice(3, y[0].length - 1);
  				}
  				break;
  
  			default: if(opts && opts.WTF) throw new Error('Unrecognized ' + y[0] + ' in clrScheme');
  		}
  	});
  }
  
  /* 20.1.4.1.18 fontScheme CT_FontScheme */
  function parse_fontScheme() { }
  
  /* 20.1.4.1.15 fmtScheme CT_StyleMatrix */
  function parse_fmtScheme() { }
  
  var clrsregex = /<a:clrScheme([^>]*)>[\s\S]*<\/a:clrScheme>/;
  var fntsregex = /<a:fontScheme([^>]*)>[\s\S]*<\/a:fontScheme>/;
  var fmtsregex = /<a:fmtScheme([^>]*)>[\s\S]*<\/a:fmtScheme>/;
  
  /* 20.1.6.10 themeElements CT_BaseStyles */
  function parse_themeElements(data, themes, opts) {
  	themes.themeElements = {};
  
  	var t;
  
  	[
  		/* clrScheme CT_ColorScheme */
  		['clrScheme', clrsregex, parse_clrScheme],
  		/* fontScheme CT_FontScheme */
  		['fontScheme', fntsregex, parse_fontScheme],
  		/* fmtScheme CT_StyleMatrix */
  		['fmtScheme', fmtsregex, parse_fmtScheme]
  	].forEach(function(m) {
  		if(!(t=data.match(m[1]))) throw new Error(m[0] + ' not found in themeElements');
  		m[2](t, themes, opts);
  	});
  }
  
  var themeltregex = /<a:themeElements([^>]*)>[\s\S]*<\/a:themeElements>/;
  
  /* 14.2.7 Theme Part */
  function parse_theme_xml(data, opts) {
  	/* 20.1.6.9 theme CT_OfficeStyleSheet */
  	if(!data || data.length === 0) return parse_theme_xml(write_theme());
  
  	var t;
  	var themes = {};
  
  	/* themeElements CT_BaseStyles */
  	if(!(t=data.match(themeltregex))) throw new Error('themeElements not found in theme');
  	parse_themeElements(t[0], themes, opts);
  
  	return themes;
  }
  
  function write_theme(Themes, opts) {
  	if(opts && opts.themeXLSX) return opts.themeXLSX;
  	var o = [XML_HEADER];
  	o[o.length] = '<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office Theme">';
  	o[o.length] =  '<a:themeElements>';
  
  	o[o.length] =   '<a:clrScheme name="Office">';
  	o[o.length] =    '<a:dk1><a:sysClr val="windowText" lastClr="000000"/></a:dk1>';
  	o[o.length] =    '<a:lt1><a:sysClr val="window" lastClr="FFFFFF"/></a:lt1>';
  	o[o.length] =    '<a:dk2><a:srgbClr val="1F497D"/></a:dk2>';
  	o[o.length] =    '<a:lt2><a:srgbClr val="EEECE1"/></a:lt2>';
  	o[o.length] =    '<a:accent1><a:srgbClr val="4F81BD"/></a:accent1>';
  	o[o.length] =    '<a:accent2><a:srgbClr val="C0504D"/></a:accent2>';
  	o[o.length] =    '<a:accent3><a:srgbClr val="9BBB59"/></a:accent3>';
  	o[o.length] =    '<a:accent4><a:srgbClr val="8064A2"/></a:accent4>';
  	o[o.length] =    '<a:accent5><a:srgbClr val="4BACC6"/></a:accent5>';
  	o[o.length] =    '<a:accent6><a:srgbClr val="F79646"/></a:accent6>';
  	o[o.length] =    '<a:hlink><a:srgbClr val="0000FF"/></a:hlink>';
  	o[o.length] =    '<a:folHlink><a:srgbClr val="800080"/></a:folHlink>';
  	o[o.length] =   '</a:clrScheme>';
  
  	o[o.length] =   '<a:fontScheme name="Office">';
  	o[o.length] =    '<a:majorFont>';
  	o[o.length] =     '<a:latin typeface="Cambria"/>';
  	o[o.length] =     '<a:ea typeface=""/>';
  	o[o.length] =     '<a:cs typeface=""/>';
  	o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
  	o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
  	o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
  	o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
  	o[o.length] =     '<a:font script="Arab" typeface="Times New Roman"/>';
  	o[o.length] =     '<a:font script="Hebr" typeface="Times New Roman"/>';
  	o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
  	o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
  	o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
  	o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
  	o[o.length] =     '<a:font script="Khmr" typeface="MoolBoran"/>';
  	o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
  	o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
  	o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
  	o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
  	o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
  	o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
  	o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
  	o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
  	o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
  	o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
  	o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
  	o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
  	o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
  	o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
  	o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
  	o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
  	o[o.length] =     '<a:font script="Viet" typeface="Times New Roman"/>';
  	o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
  	o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
  	o[o.length] =    '</a:majorFont>';
  	o[o.length] =    '<a:minorFont>';
  	o[o.length] =     '<a:latin typeface="Calibri"/>';
  	o[o.length] =     '<a:ea typeface=""/>';
  	o[o.length] =     '<a:cs typeface=""/>';
  	o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
  	o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
  	o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
  	o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
  	o[o.length] =     '<a:font script="Arab" typeface="Arial"/>';
  	o[o.length] =     '<a:font script="Hebr" typeface="Arial"/>';
  	o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
  	o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
  	o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
  	o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
  	o[o.length] =     '<a:font script="Khmr" typeface="DaunPenh"/>';
  	o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
  	o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
  	o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
  	o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
  	o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
  	o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
  	o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
  	o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
  	o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
  	o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
  	o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
  	o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
  	o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
  	o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
  	o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
  	o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
  	o[o.length] =     '<a:font script="Viet" typeface="Arial"/>';
  	o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
  	o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
  	o[o.length] =    '</a:minorFont>';
  	o[o.length] =   '</a:fontScheme>';
  
  	o[o.length] =   '<a:fmtScheme name="Office">';
  	o[o.length] =    '<a:fillStyleLst>';
  	o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
  	o[o.length] =     '<a:gradFill rotWithShape="1">';
  	o[o.length] =      '<a:gsLst>';
  	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="50000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="35000"><a:schemeClr val="phClr"><a:tint val="37000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="15000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
  	o[o.length] =      '</a:gsLst>';
  	o[o.length] =      '<a:lin ang="16200000" scaled="1"/>';
  	o[o.length] =     '</a:gradFill>';
  	o[o.length] =     '<a:gradFill rotWithShape="1">';
  	o[o.length] =      '<a:gsLst>';
  	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="100000"/><a:shade val="100000"/><a:satMod val="130000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="50000"/><a:shade val="100000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
  	o[o.length] =      '</a:gsLst>';
  	o[o.length] =      '<a:lin ang="16200000" scaled="0"/>';
  	o[o.length] =     '</a:gradFill>';
  	o[o.length] =    '</a:fillStyleLst>';
  	o[o.length] =    '<a:lnStyleLst>';
  	o[o.length] =     '<a:ln w="9525" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"><a:shade val="95000"/><a:satMod val="105000"/></a:schemeClr></a:solidFill><a:prstDash val="solid"/></a:ln>';
  	o[o.length] =     '<a:ln w="25400" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
  	o[o.length] =     '<a:ln w="38100" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
  	o[o.length] =    '</a:lnStyleLst>';
  	o[o.length] =    '<a:effectStyleLst>';
  	o[o.length] =     '<a:effectStyle>';
  	o[o.length] =      '<a:effectLst>';
  	o[o.length] =       '<a:outerShdw blurRad="40000" dist="20000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="38000"/></a:srgbClr></a:outerShdw>';
  	o[o.length] =      '</a:effectLst>';
  	o[o.length] =     '</a:effectStyle>';
  	o[o.length] =     '<a:effectStyle>';
  	o[o.length] =      '<a:effectLst>';
  	o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
  	o[o.length] =      '</a:effectLst>';
  	o[o.length] =     '</a:effectStyle>';
  	o[o.length] =     '<a:effectStyle>';
  	o[o.length] =      '<a:effectLst>';
  	o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
  	o[o.length] =      '</a:effectLst>';
  	o[o.length] =      '<a:scene3d><a:camera prst="orthographicFront"><a:rot lat="0" lon="0" rev="0"/></a:camera><a:lightRig rig="threePt" dir="t"><a:rot lat="0" lon="0" rev="1200000"/></a:lightRig></a:scene3d>';
  	o[o.length] =      '<a:sp3d><a:bevelT w="63500" h="25400"/></a:sp3d>';
  	o[o.length] =     '</a:effectStyle>';
  	o[o.length] =    '</a:effectStyleLst>';
  	o[o.length] =    '<a:bgFillStyleLst>';
  	o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
  	o[o.length] =     '<a:gradFill rotWithShape="1">';
  	o[o.length] =      '<a:gsLst>';
  	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="40000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="40000"><a:schemeClr val="phClr"><a:tint val="45000"/><a:shade val="99000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="20000"/><a:satMod val="255000"/></a:schemeClr></a:gs>';
  	o[o.length] =      '</a:gsLst>';
  	o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="-80000" r="50000" b="180000"/></a:path>';
  	o[o.length] =     '</a:gradFill>';
  	o[o.length] =     '<a:gradFill rotWithShape="1">';
  	o[o.length] =      '<a:gsLst>';
  	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="80000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
  	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="30000"/><a:satMod val="200000"/></a:schemeClr></a:gs>';
  	o[o.length] =      '</a:gsLst>';
  	o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="50000" r="50000" b="50000"/></a:path>';
  	o[o.length] =     '</a:gradFill>';
  	o[o.length] =    '</a:bgFillStyleLst>';
  	o[o.length] =   '</a:fmtScheme>';
  	o[o.length] =  '</a:themeElements>';
  
  	o[o.length] =  '<a:objectDefaults>';
  	o[o.length] =   '<a:spDef>';
  	o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="1"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="3"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="2"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="lt1"/></a:fontRef></a:style>';
  	o[o.length] =   '</a:spDef>';
  	o[o.length] =   '<a:lnDef>';
  	o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="2"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="0"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="1"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="tx1"/></a:fontRef></a:style>';
  	o[o.length] =   '</a:lnDef>';
  	o[o.length] =  '</a:objectDefaults>';
  	o[o.length] =  '<a:extraClrSchemeLst/>';
  	o[o.length] = '</a:theme>';
  	return o.join("");
  }
  /* [MS-XLS] 2.4.326 TODO: payload is a zip file */
  function parse_Theme(blob, length, opts) {
  	var end = blob.l + length;
  	var dwThemeVersion = blob.read_shift(4);
  	if(dwThemeVersion === 124226) return;
  	if(!opts.cellStyles || !jszip) { blob.l = end; return; }
  	var data = blob.slice(blob.l);
  	blob.l = end;
  	var zip; try { zip = new jszip(data); } catch(e) { return; }
  	var themeXML = getzipstr(zip, "theme/theme/theme1.xml", true);
  	if(!themeXML) return;
  	return parse_theme_xml(themeXML, opts);
  }
  
  /* 2.5.49 */
  function parse_ColorTheme(blob) { return blob.read_shift(4); }
  
  /* 2.5.155 */
  function parse_FullColorExt(blob) {
  	var o = {};
  	o.xclrType = blob.read_shift(2);
  	o.nTintShade = blob.read_shift(2);
  	switch(o.xclrType) {
  		case 0: blob.l += 4; break;
  		case 1: o.xclrValue = parse_IcvXF(blob, 4); break;
  		case 2: o.xclrValue = parse_LongRGBA(blob, 4); break;
  		case 3: o.xclrValue = parse_ColorTheme(blob, 4); break;
  		case 4: blob.l += 4; break;
  	}
  	blob.l += 8;
  	return o;
  }
  
  /* 2.5.164 TODO: read 7 bits*/
  function parse_IcvXF(blob, length) {
  	return parsenoop(blob, length);
  }
  
  /* 2.5.280 */
  function parse_XFExtGradient(blob, length) {
  	return parsenoop(blob, length);
  }
  
  /* [MS-XLS] 2.5.108 */
  function parse_ExtProp(blob) {
  	var extType = blob.read_shift(2);
  	var cb = blob.read_shift(2) - 4;
  	var o = [extType];
  	switch(extType) {
  		case 0x04: case 0x05: case 0x07: case 0x08:
  		case 0x09: case 0x0A: case 0x0B: case 0x0D:
  			o[1] = parse_FullColorExt(blob, cb); break;
  		case 0x06: o[1] = parse_XFExtGradient(blob, cb); break;
  		case 0x0E: case 0x0F: o[1] = blob.read_shift(cb === 1 ? 1 : 2); break;
  		default: throw new Error("Unrecognized ExtProp type: " + extType + " " + cb);
  	}
  	return o;
  }
  
  /* 2.4.355 */
  function parse_XFExt(blob, length) {
  	var end = blob.l + length;
  	blob.l += 2;
  	var ixfe = blob.read_shift(2);
  	blob.l += 2;
  	var cexts = blob.read_shift(2);
  	var ext = [];
  	while(cexts-- > 0) ext.push(parse_ExtProp(blob, end-blob.l));
  	return {ixfe:ixfe, ext:ext};
  }
  
  /* xf is an XF, see parse_XFExt for xfext */
  function update_xfext(xf, xfext) {
  	xfext.forEach(function(xfe) {
  		switch(xfe[0]) { /* 2.5.108 extPropData */
  			case 0x04: break; /* foreground color */
  			case 0x05: break; /* background color */
  			case 0x06: break; /* gradient fill */
  			case 0x07: break; /* top cell border color */
  			case 0x08: break; /* bottom cell border color */
  			case 0x09: break; /* left cell border color */
  			case 0x0a: break; /* right cell border color */
  			case 0x0b: break; /* diagonal cell border color */
  			case 0x0d: break; /* text color */
  			case 0x0e: break; /* font scheme */
  			case 0x0f: break; /* indentation level */
  		}
  	});
  }
  
  /* 18.6 Calculation Chain */
  function parse_cc_xml(data) {
  	var d = [];
  	if(!data) return d;
  	var i = 1;
  	(data.match(tagregex)||[]).forEach(function(x) {
  		var y = parsexmltag(x);
  		switch(y[0]) {
  			case '<?xml': break;
  			/* 18.6.2  calcChain CT_CalcChain 1 */
  			case '<calcChain': case '<calcChain>': case '</calcChain>': break;
  			/* 18.6.1  c CT_CalcCell 1 */
  			case '<c': delete y[0]; if(y.i) i = y.i; else y.i = i; d.push(y); break;
  		}
  	});
  	return d;
  }
  
  //function write_cc_xml(data, opts) { }
  
  /* [MS-XLSB] 2.6.4.1 */
  function parse_BrtCalcChainItem$(data) {
  	var out = {};
  	out.i = data.read_shift(4);
  	var cell = {};
  	cell.r = data.read_shift(4);
  	cell.c = data.read_shift(4);
  	out.r = encode_cell(cell);
  	var flags = data.read_shift(1);
  	if(flags & 0x2) out.l = '1';
  	if(flags & 0x8) out.a = '1';
  	return out;
  }
  
  /* 18.6 Calculation Chain */
  function parse_cc_bin(data, name, opts) {
  	var out = [];
  	var pass = false;
  	recordhopper(data, function hopper_cc(val, R_n, RT) {
  		switch(RT) {
  			case 0x003F: /* 'BrtCalcChainItem$' */
  				out.push(val); break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	});
  	return out;
  }
  
  //function write_cc_bin(data, opts) { }
  /* 18.14 Supplementary Workbook Data */
  function parse_xlink_xml() {
  	//var opts = _opts || {};
  	//if(opts.WTF) throw "XLSX External Link";
  }
  
  /* [MS-XLSB] 2.1.7.25 External Link */
  function parse_xlink_bin(data, name, _opts) {
  	if(!data) return data;
  	var opts = _opts || {};
  
  	var pass = false, end = false;
  
  	recordhopper(data, function xlink_parse(val, R_n, RT) {
  		if(end) return;
  		switch(RT) {
  			case 0x0167: /* 'BrtSupTabs' */
  			case 0x016B: /* 'BrtExternTableStart' */
  			case 0x016C: /* 'BrtExternTableEnd' */
  			case 0x016E: /* 'BrtExternRowHdr' */
  			case 0x016F: /* 'BrtExternCellBlank' */
  			case 0x0170: /* 'BrtExternCellReal' */
  			case 0x0171: /* 'BrtExternCellBool' */
  			case 0x0172: /* 'BrtExternCellError' */
  			case 0x0173: /* 'BrtExternCellString' */
  			case 0x01D8: /* 'BrtExternValueMeta' */
  			case 0x0241: /* 'BrtSupNameStart' */
  			case 0x0242: /* 'BrtSupNameValueStart' */
  			case 0x0243: /* 'BrtSupNameValueEnd' */
  			case 0x0244: /* 'BrtSupNameNum' */
  			case 0x0245: /* 'BrtSupNameErr' */
  			case 0x0246: /* 'BrtSupNameSt' */
  			case 0x0247: /* 'BrtSupNameNil' */
  			case 0x0248: /* 'BrtSupNameBool' */
  			case 0x0249: /* 'BrtSupNameFmla' */
  			case 0x024A: /* 'BrtSupNameBits' */
  			case 0x024B: /* 'BrtSupNameEnd' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT.toString(16) + " " + R_n);
  		}
  	}, opts);
  }
  RELS.IMG = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image";
  RELS.DRAW = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing";
  /* 20.5 DrawingML - SpreadsheetML Drawing */
  function parse_drawing(data, rels) {
  	if(!data) return "??";
  	/*
  	  Chartsheet Drawing:
  	   - 20.5.2.35 wsDr CT_Drawing
  	    - 20.5.2.1  absoluteAnchor CT_AbsoluteAnchor
  	     - 20.5.2.16 graphicFrame CT_GraphicalObjectFrame
  	      - 20.1.2.2.16 graphic CT_GraphicalObject
  	       - 20.1.2.2.17 graphicData CT_GraphicalObjectData
            - chart reference
  	   the actual type is based on the URI of the graphicData
  		TODO: handle embedded charts and other types of graphics
  	*/
  	var id = (data.match(/<c:chart [^>]*r:id="([^"]*)"/)||["",""])[1];
  
  	return rels['!id'][id].Target;
  }
  
  /* L.5.5.2 SpreadsheetML Comments + VML Schema */
  var _shapeid = 1024;
  function write_comments_vml(rId, comments) {
  	var csize = [21600, 21600];
  	/* L.5.2.1.2 Path Attribute */
  	var bbox = ["m0,0l0",csize[1],csize[0],csize[1],csize[0],"0xe"].join(",");
  	var o = [
  		writextag("xml", null, { 'xmlns:v': XLMLNS.v, 'xmlns:o': XLMLNS.o, 'xmlns:x': XLMLNS.x, 'xmlns:mv': XLMLNS.mv }).replace(/\/>/,">"),
  		writextag("o:shapelayout", writextag("o:idmap", null, {'v:ext':"edit", 'data':rId}), {'v:ext':"edit"}),
  		writextag("v:shapetype", [
  			writextag("v:stroke", null, {joinstyle:"miter"}),
  			writextag("v:path", null, {gradientshapeok:"t", 'o:connecttype':"rect"})
  		].join(""), {id:"_x0000_t202", 'o:spt':202, coordsize:csize.join(","),path:bbox})
  	];
  	while(_shapeid < rId * 1000) _shapeid += 1000;
  
  	comments.forEach(function(x) { var c = decode_cell(x[0]);
  	o = o.concat([
  	'<v:shape' + wxt_helper({
  		id:'_x0000_s' + (++_shapeid),
  		type:"#_x0000_t202",
  		style:"position:absolute; margin-left:80pt;margin-top:5pt;width:104pt;height:64pt;z-index:10" + (x[1].hidden ? ";visibility:hidden" : "") ,
  		fillcolor:"#ECFAD4",
  		strokecolor:"#edeaa1"
  	}) + '>',
  		writextag('v:fill', writextag("o:fill", null, {type:"gradientUnscaled", 'v:ext':"view"}), {'color2':"#BEFF82", 'angle':"-180", 'type':"gradient"}),
  		writextag("v:shadow", null, {on:"t", 'obscured':"t"}),
  		writextag("v:path", null, {'o:connecttype':"none"}),
  		'<v:textbox><div style="text-align:left"></div></v:textbox>',
  		'<x:ClientData ObjectType="Note">',
  			'<x:MoveWithCells/>',
  			'<x:SizeWithCells/>',
  			/* Part 4 19.4.2.3 Anchor (Anchor) */
  			writetag('x:Anchor', [c.c, 0, c.r, 0, c.c+3, 100, c.r+5, 100].join(",")),
  			writetag('x:AutoFill', "False"),
  			writetag('x:Row', String(c.r)),
  			writetag('x:Column', String(c.c)),
  			x[1].hidden ? '' : '<x:Visible/>',
  		'</x:ClientData>',
  	'</v:shape>'
  	]); });
  	o.push('</xml>');
  	return o.join("");
  }
  
  RELS.CMNT = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments";
  
  function parse_comments(zip, dirComments, sheets, sheetRels, opts) {
  	for(var i = 0; i != dirComments.length; ++i) {
  		var canonicalpath=dirComments[i];
  		var comments=parse_cmnt(getzipdata(zip, canonicalpath.replace(/^\//,''), true), canonicalpath, opts);
  		if(!comments || !comments.length) continue;
  		// find the sheets targeted by these comments
  		var sheetNames = keys(sheets);
  		for(var j = 0; j != sheetNames.length; ++j) {
  			var sheetName = sheetNames[j];
  			var rels = sheetRels[sheetName];
  			if(rels) {
  				var rel = rels[canonicalpath];
  				if(rel) insertCommentsIntoSheet(sheetName, sheets[sheetName], comments);
  			}
  		}
  	}
  }
  
  function insertCommentsIntoSheet(sheetName, sheet, comments) {
  	var dense = Array.isArray(sheet);
  	var cell, r;
  	comments.forEach(function(comment) {
  		if(dense) {
  			r = decode_cell(comment.ref);
  			if(!sheet[r.r]) sheet[r.r] = [];
  			cell = sheet[r.r][r.c];
  		} else cell = sheet[comment.ref];
  		if (!cell) {
  			cell = {};
  			if(dense) sheet[r.r][r.c] = cell;
  			else sheet[comment.ref] = cell;
  			var range = safe_decode_range(sheet["!ref"]||"BDWGO1000001:A1");
  			var thisCell = decode_cell(comment.ref);
  			if(range.s.r > thisCell.r) range.s.r = thisCell.r;
  			if(range.e.r < thisCell.r) range.e.r = thisCell.r;
  			if(range.s.c > thisCell.c) range.s.c = thisCell.c;
  			if(range.e.c < thisCell.c) range.e.c = thisCell.c;
  			var encoded = encode_range(range);
  			if (encoded !== sheet["!ref"]) sheet["!ref"] = encoded;
  		}
  
  		if (!cell.c) cell.c = [];
  		var o = ({a: comment.author, t: comment.t, r: comment.r});
  		if(comment.h) o.h = comment.h;
  		cell.c.push(o);
  	});
  }
  
  /* 18.7 Comments */
  function parse_comments_xml(data, opts) {
  	/* 18.7.6 CT_Comments */
  	if(data.match(/<(?:\w+:)?comments *\/>/)) return [];
  	var authors = [];
  	var commentList = [];
  	var authtag = data.match(/<(?:\w+:)?authors>([\s\S]*)<\/(?:\w+:)?authors>/);
  	if(authtag && authtag[1]) authtag[1].split(/<\/\w*:?author>/).forEach(function(x) {
  		if(x === "" || x.trim() === "") return;
  		var a = x.match(/<(?:\w+:)?author[^>]*>(.*)/);
  		if(a) authors.push(a[1]);
  	});
  	var cmnttag = data.match(/<(?:\w+:)?commentList>([\s\S]*)<\/(?:\w+:)?commentList>/);
  	if(cmnttag && cmnttag[1]) cmnttag[1].split(/<\/\w*:?comment>/).forEach(function(x) {
  		if(x === "" || x.trim() === "") return;
  		var cm = x.match(/<(?:\w+:)?comment[^>]*>/);
  		if(!cm) return;
  		var y = parsexmltag(cm[0]);
  		var comment = ({ author: y.authorId && authors[y.authorId] || "sheetjsghost", ref: y.ref, guid: y.guid });
  		var cell = decode_cell(y.ref);
  		if(opts.sheetRows && opts.sheetRows <= cell.r) return;
  		var textMatch = x.match(/<(?:\w+:)?text>([\s\S]*)<\/(?:\w+:)?text>/);
  		var rt = !!textMatch && !!textMatch[1] && parse_si(textMatch[1]) || {r:"",t:"",h:""};
  		comment.r = rt.r;
  		if(rt.r == "<t></t>") rt.t = rt.h = "";
  		comment.t = rt.t.replace(/\r\n/g,"\n").replace(/\r/g,"\n");
  		if(opts.cellHTML) comment.h = rt.h;
  		commentList.push(comment);
  	});
  	return commentList;
  }
  
  var CMNT_XML_ROOT = writextag('comments', null, { 'xmlns': XMLNS.main[0] });
  function write_comments_xml(data) {
  	var o = [XML_HEADER, CMNT_XML_ROOT];
  
  	var iauthor = [];
  	o.push("<authors>");
  	data.forEach(function(x) { x[1].forEach(function(w) { var a = escapexml(w.a);
  		if(iauthor.indexOf(a) > -1) return;
  		iauthor.push(a);
  		o.push("<author>" + a + "</author>");
  	}); });
  	o.push("</authors>");
  	o.push("<commentList>");
  	data.forEach(function(d) {
  		d[1].forEach(function(c) {
  			/* 18.7.3 CT_Comment */
  			o.push('<comment ref="' + d[0] + '" authorId="' + iauthor.indexOf(escapexml(c.a)) + '"><text>');
  			o.push(writetag("t", c.t == null ? "" : c.t));
  			o.push('</text></comment>');
  		});
  	});
  	o.push("</commentList>");
  	if(o.length>2) { o[o.length] = ('</comments>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* [MS-XLSB] 2.4.28 BrtBeginComment */
  function parse_BrtBeginComment(data) {
  	var out = {};
  	out.iauthor = data.read_shift(4);
  	var rfx = parse_UncheckedRfX(data, 16);
  	out.rfx = rfx.s;
  	out.ref = encode_cell(rfx.s);
  	data.l += 16; /*var guid = parse_GUID(data); */
  	return out;
  }
  function write_BrtBeginComment(data, o) {
  	if(o == null) o = new_buf(36);
  	o.write_shift(4, data[1].iauthor);
  	write_UncheckedRfX((data[0]), o);
  	o.write_shift(4, 0);
  	o.write_shift(4, 0);
  	o.write_shift(4, 0);
  	o.write_shift(4, 0);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.327 BrtCommentAuthor */
  var parse_BrtCommentAuthor = parse_XLWideString;
  function write_BrtCommentAuthor(data) { return write_XLWideString(data.slice(0, 54)); }
  
  /* [MS-XLSB] 2.1.7.8 Comments */
  function parse_comments_bin(data, opts) {
  	var out = [];
  	var authors = [];
  	var c = {};
  	var pass = false;
  	recordhopper(data, function hopper_cmnt(val, R_n, RT) {
  		switch(RT) {
  			case 0x0278: /* 'BrtCommentAuthor' */
  				authors.push(val); break;
  			case 0x027B: /* 'BrtBeginComment' */
  				c = val; break;
  			case 0x027D: /* 'BrtCommentText' */
  				c.t = val.t; c.h = val.h; c.r = val.r; break;
  			case 0x027C: /* 'BrtEndComment' */
  				c.author = authors[c.iauthor];
  				delete c.iauthor;
  				if(opts.sheetRows && opts.sheetRows <= c.rfx.r) break;
  				if(!c.t) c.t = "";
  				delete c.rfx; out.push(c); break;
  
  			case 0x0C00: /* 'BrtUid' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  			case 0x0025: /* 'BrtACBegin' */ break;
  			case 0x0026: /* 'BrtACEnd' */ break;
  
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	});
  	return out;
  }
  
  function write_comments_bin(data) {
  	var ba = buf_array();
  	var iauthor = [];
  	write_record(ba, "BrtBeginComments");
  
  	write_record(ba, "BrtBeginCommentAuthors");
  	data.forEach(function(comment) {
  		comment[1].forEach(function(c) {
  			if(iauthor.indexOf(c.a) > -1) return;
  			iauthor.push(c.a.slice(0,54));
  			write_record(ba, "BrtCommentAuthor", write_BrtCommentAuthor(c.a));
  		});
  	});
  	write_record(ba, "BrtEndCommentAuthors");
  
  	write_record(ba, "BrtBeginCommentList");
  	data.forEach(function(comment) {
  		comment[1].forEach(function(c) {
  			c.iauthor = iauthor.indexOf(c.a);
  			var range = {s:decode_cell(comment[0]),e:decode_cell(comment[0])};
  			write_record(ba, "BrtBeginComment", write_BrtBeginComment([range, c]));
  			if(c.t && c.t.length > 0) write_record(ba, "BrtCommentText", write_BrtCommentText(c));
  			write_record(ba, "BrtEndComment");
  			delete c.iauthor;
  		});
  	});
  	write_record(ba, "BrtEndCommentList");
  
  	write_record(ba, "BrtEndComments");
  	return ba.end();
  }
  var CT_VBA = "application/vnd.ms-office.vbaProject";
  function make_vba_xls(cfb) {
  	var newcfb = CFB.utils.cfb_new({root:"R"});
  	cfb.FullPaths.forEach(function(p, i) {
  		if(p.slice(-1) === "/" || !p.match(/_VBA_PROJECT_CUR/)) return;
  		var newpath = p.replace(/^[^\/]*/,"R").replace(/\/_VBA_PROJECT_CUR\u0000*/, "");
  		CFB.utils.cfb_add(newcfb, newpath, cfb.FileIndex[i].content);
  	});
  	return CFB.write(newcfb);
  }
  
  function fill_vba_xls(cfb, vba) {
  	vba.FullPaths.forEach(function(p, i) {
  		if(i == 0) return;
  		var newpath = p.replace(/[^\/]*[\/]/, "/_VBA_PROJECT_CUR/");
  		if(newpath.slice(-1) !== "/") CFB.utils.cfb_add(cfb, newpath, vba.FileIndex[i].content);
  	});
  }
  
  var VBAFMTS = [ "xlsb", "xlsm", "xlam", "biff8", "xla" ];
  
  RELS.DS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/dialogsheet";
  RELS.MS = "http://schemas.microsoft.com/office/2006/relationships/xlMacrosheet";
  
  /* macro and dialog sheet stubs */
  function parse_ds_bin() { return {'!type':'dialog'}; }
  function parse_ds_xml() { return {'!type':'dialog'}; }
  function parse_ms_bin() { return {'!type':'macro'}; }
  function parse_ms_xml() { return {'!type':'macro'}; }
  /* TODO: it will be useful to parse the function str */
  var rc_to_a1 = (function(){
  	var rcregex = /(^|[^A-Za-z])R(\[?)(-?\d+|)\]?C(\[?)(-?\d+|)\]?/g;
  	var rcbase = ({r:0,c:0});
  	function rcfunc($$,$1,$2,$3,$4,$5) {
  		var R = $3.length>0?parseInt($3,10)|0:0, C = $5.length>0?parseInt($5,10)|0:0;
  		if(C<0 && $4.length === 0) C=0;
  		var cRel = false, rRel = false;
  		if($4.length > 0 || $5.length == 0) cRel = true; if(cRel) C += rcbase.c; else --C;
  		if($2.length > 0 || $3.length == 0) rRel = true; if(rRel) R += rcbase.r; else --R;
  		return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
  	}
  	return function rc_to_a1(fstr, base) {
  		rcbase = base;
  		return fstr.replace(rcregex, rcfunc);
  	};
  })();
  
  var crefregex = /(^|[^._A-Z0-9])([$]?)([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])([$]?)([1-9]\d{0,5}|10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6])(?![_.\(A-Za-z0-9])/g;
  var a1_to_rc =(function(){
  	return function a1_to_rc(fstr, base) {
  		return fstr.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
  			var c = decode_col($3) - ($2 ? 0 : base.c);
  			var r = decode_row($5) - ($4 ? 0 : base.r);
  			var R = (r == 0 ? "" : !$4 ? "[" + r + "]" : (r+1));
  			var C = (c == 0 ? "" : !$2 ? "[" + c + "]" : (c+1));
  			return $1 + "R" + R + "C" + C;
  		});
  	};
  })();
  
  /* no defined name can collide with a valid cell address A1:XFD1048576 ... except LOG10! */
  function shift_formula_str(f, delta) {
  	return f.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
  		return $1+($2=="$" ? $2+$3 : encode_col(decode_col($3)+delta.c))+($4=="$" ? $4+$5 : encode_row(decode_row($5) + delta.r));
  	});
  }
  
  function shift_formula_xlsx(f, range, cell) {
  	var r = decode_range(range), s = r.s, c = decode_cell(cell);
  	var delta = {r:c.r - s.r, c:c.c - s.c};
  	return shift_formula_str(f, delta);
  }
  
  /* TODO: parse formula */
  function fuzzyfmla(f) {
  	if(f.length == 1) return false;
  	return true;
  }
  
  function _xlfn(f) {
  	return f.replace(/_xlfn\./g,"");
  }
  function parseread1(blob) { blob.l+=1; return; }
  
  /* [MS-XLS] 2.5.51 */
  function parse_ColRelU(blob, length) {
  	var c = blob.read_shift(length == 1 ? 1 : 2);
  	return [c & 0x3FFF, (c >> 14) & 1, (c >> 15) & 1];
  }
  
  /* [MS-XLS] 2.5.198.105 ; [MS-XLSB] 2.5.97.89 */
  function parse_RgceArea(blob, length, opts) {
  	var w = 2;
  	if(opts) {
  		if(opts.biff >= 2 && opts.biff <= 5) return parse_RgceArea_BIFF2(blob, length, opts);
  		else if(opts.biff == 12) w = 4;
  	}
  	var r=blob.read_shift(w), R=blob.read_shift(w);
  	var c=parse_ColRelU(blob, 2);
  	var C=parse_ColRelU(blob, 2);
  	return { s:{r:r, c:c[0], cRel:c[1], rRel:c[2]}, e:{r:R, c:C[0], cRel:C[1], rRel:C[2]} };
  }
  /* BIFF 2-5 encodes flags in the row field */
  function parse_RgceArea_BIFF2(blob) {
  	var r=parse_ColRelU(blob, 2), R=parse_ColRelU(blob, 2);
  	var c=blob.read_shift(1);
  	var C=blob.read_shift(1);
  	return { s:{r:r[0], c:c, cRel:r[1], rRel:r[2]}, e:{r:R[0], c:C, cRel:R[1], rRel:R[2]} };
  }
  
  /* [MS-XLS] 2.5.198.105 ; [MS-XLSB] 2.5.97.90 */
  function parse_RgceAreaRel(blob, length, opts) {
  	if(opts.biff < 8) return parse_RgceArea_BIFF2(blob, length, opts);
  	var r=blob.read_shift(opts.biff == 12 ? 4 : 2), R=blob.read_shift(opts.biff == 12 ? 4 : 2);
  	var c=parse_ColRelU(blob, 2);
  	var C=parse_ColRelU(blob, 2);
  	return { s:{r:r, c:c[0], cRel:c[1], rRel:c[2]}, e:{r:R, c:C[0], cRel:C[1], rRel:C[2]} };
  }
  
  /* [MS-XLS] 2.5.198.109 ; [MS-XLSB] 2.5.97.91 */
  function parse_RgceLoc(blob, length, opts) {
  	if(opts && opts.biff >= 2 && opts.biff <= 5) return parse_RgceLoc_BIFF2(blob, length, opts);
  	var r = blob.read_shift(opts && opts.biff == 12 ? 4 : 2);
  	var c = parse_ColRelU(blob, 2);
  	return {r:r, c:c[0], cRel:c[1], rRel:c[2]};
  }
  function parse_RgceLoc_BIFF2(blob) {
  	var r = parse_ColRelU(blob, 2);
  	var c = blob.read_shift(1);
  	return {r:r[0], c:c, cRel:r[1], rRel:r[2]};
  }
  
  /* [MS-XLS] 2.5.198.107, 2.5.47 */
  function parse_RgceElfLoc(blob) {
  	var r = blob.read_shift(2);
  	var c = blob.read_shift(2);
  	return {r:r, c:c & 0xFF, fQuoted:!!(c & 0x4000), cRel:c>>15, rRel:c>>15 };
  }
  
  /* [MS-XLS] 2.5.198.111 ; [MS-XLSB] 2.5.97.92 TODO */
  function parse_RgceLocRel(blob, length, opts) {
  	var biff = opts && opts.biff ? opts.biff : 8;
  	if(biff >= 2 && biff <= 5) return parse_RgceLocRel_BIFF2(blob, length, opts);
  	var r = blob.read_shift(biff >= 12 ? 4 : 2);
  	var cl = blob.read_shift(2);
  	var cRel = (cl & 0x4000) >> 14, rRel = (cl & 0x8000) >> 15;
  	cl &= 0x3FFF;
  	if(rRel == 1) while(r > 0x7FFFF) r -= 0x100000;
  	if(cRel == 1) while(cl > 0x1FFF) cl = cl - 0x4000;
  	return {r:r,c:cl,cRel:cRel,rRel:rRel};
  }
  function parse_RgceLocRel_BIFF2(blob) {
  	var rl = blob.read_shift(2);
  	var c = blob.read_shift(1);
  	var rRel = (rl & 0x8000) >> 15, cRel = (rl & 0x4000) >> 14;
  	rl &= 0x3FFF;
  	if(rRel == 1 && rl >= 0x2000) rl = rl - 0x4000;
  	if(cRel == 1 && c >= 0x80) c = c - 0x100;
  	return {r:rl,c:c,cRel:cRel,rRel:rRel};
  }
  
  /* [MS-XLS] 2.5.198.27 ; [MS-XLSB] 2.5.97.18 */
  function parse_PtgArea(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var area = parse_RgceArea(blob, opts.biff >= 2 && opts.biff <= 5 ? 6 : 8, opts);
  	return [type, area];
  }
  
  /* [MS-XLS] 2.5.198.28 ; [MS-XLSB] 2.5.97.19 */
  function parse_PtgArea3d(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var ixti = blob.read_shift(2, 'i');
  	var w = 8;
  	if(opts) switch(opts.biff) {
  		case 5: blob.l += 12; w = 6; break;
  		case 12: w = 12; break;
  	}
  	var area = parse_RgceArea(blob, w, opts);
  	return [type, ixti, area];
  }
  
  /* [MS-XLS] 2.5.198.29 ; [MS-XLSB] 2.5.97.20 */
  function parse_PtgAreaErr(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	blob.l += opts && (opts.biff > 8) ? 12 : (opts.biff < 8 ? 6 : 8);
  	return [type];
  }
  /* [MS-XLS] 2.5.198.30 ; [MS-XLSB] 2.5.97.21 */
  function parse_PtgAreaErr3d(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var ixti = blob.read_shift(2);
  	var w = 8;
  	if(opts) switch(opts.biff) {
  		case 5: blob.l += 12; w = 6; break;
  		case 12: w = 12; break;
  	}
  	blob.l += w;
  	return [type, ixti];
  }
  
  /* [MS-XLS] 2.5.198.31 ; [MS-XLSB] 2.5.97.22 */
  function parse_PtgAreaN(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var area = parse_RgceAreaRel(blob, length - 1, opts);
  	return [type, area];
  }
  
  /* [MS-XLS] 2.5.198.32 ; [MS-XLSB] 2.5.97.23 */
  function parse_PtgArray(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	blob.l += opts.biff == 2 ? 6 : opts.biff == 12 ? 14 : 7;
  	return [type];
  }
  
  /* [MS-XLS] 2.5.198.33 ; [MS-XLSB] 2.5.97.24 */
  function parse_PtgAttrBaxcel(blob) {
  	var bitSemi = blob[blob.l+1] & 0x01; /* 1 = volatile */
  	var bitBaxcel = 1;
  	blob.l += 4;
  	return [bitSemi, bitBaxcel];
  }
  
  /* [MS-XLS] 2.5.198.34 ; [MS-XLSB] 2.5.97.25 */
  function parse_PtgAttrChoose(blob, length, opts) {
  	blob.l +=2;
  	var offset = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	var o = [];
  	/* offset is 1 less than the number of elements */
  	for(var i = 0; i <= offset; ++i) o.push(blob.read_shift(opts && opts.biff == 2 ? 1 : 2));
  	return o;
  }
  
  /* [MS-XLS] 2.5.198.35 ; [MS-XLSB] 2.5.97.26 */
  function parse_PtgAttrGoto(blob, length, opts) {
  	var bitGoto = (blob[blob.l+1] & 0xFF) ? 1 : 0;
  	blob.l += 2;
  	return [bitGoto, blob.read_shift(opts && opts.biff == 2 ? 1 : 2)];
  }
  
  /* [MS-XLS] 2.5.198.36 ; [MS-XLSB] 2.5.97.27 */
  function parse_PtgAttrIf(blob, length, opts) {
  	var bitIf = (blob[blob.l+1] & 0xFF) ? 1 : 0;
  	blob.l += 2;
  	return [bitIf, blob.read_shift(opts && opts.biff == 2 ? 1 : 2)];
  }
  
  /* [MS-XLSB] 2.5.97.28 */
  function parse_PtgAttrIfError(blob) {
  	var bitIf = (blob[blob.l+1] & 0xFF) ? 1 : 0;
  	blob.l += 2;
  	return [bitIf, blob.read_shift(2)];
  }
  
  /* [MS-XLS] 2.5.198.37 ; [MS-XLSB] 2.5.97.29 */
  function parse_PtgAttrSemi(blob, length, opts) {
  	var bitSemi = (blob[blob.l+1] & 0xFF) ? 1 : 0;
  	blob.l += opts && opts.biff == 2 ? 3 : 4;
  	return [bitSemi];
  }
  
  /* [MS-XLS] 2.5.198.40 ; [MS-XLSB] 2.5.97.32 */
  function parse_PtgAttrSpaceType(blob) {
  	var type = blob.read_shift(1), cch = blob.read_shift(1);
  	return [type, cch];
  }
  
  /* [MS-XLS] 2.5.198.38 ; [MS-XLSB] 2.5.97.30 */
  function parse_PtgAttrSpace(blob) {
  	blob.read_shift(2);
  	return parse_PtgAttrSpaceType(blob, 2);
  }
  
  /* [MS-XLS] 2.5.198.39 ; [MS-XLSB] 2.5.97.31 */
  function parse_PtgAttrSpaceSemi(blob) {
  	blob.read_shift(2);
  	return parse_PtgAttrSpaceType(blob, 2);
  }
  
  /* [MS-XLS] 2.5.198.84 ; [MS-XLSB] 2.5.97.68 TODO */
  function parse_PtgRef(blob, length, opts) {
  	//var ptg = blob[blob.l] & 0x1F;
  	var type = (blob[blob.l] & 0x60)>>5;
  	blob.l += 1;
  	var loc = parse_RgceLoc(blob, 0, opts);
  	return [type, loc];
  }
  
  /* [MS-XLS] 2.5.198.88 ; [MS-XLSB] 2.5.97.72 TODO */
  function parse_PtgRefN(blob, length, opts) {
  	var type = (blob[blob.l] & 0x60)>>5;
  	blob.l += 1;
  	var loc = parse_RgceLocRel(blob, 0, opts);
  	return [type, loc];
  }
  
  /* [MS-XLS] 2.5.198.85 ; [MS-XLSB] 2.5.97.69 TODO */
  function parse_PtgRef3d(blob, length, opts) {
  	var type = (blob[blob.l] & 0x60)>>5;
  	blob.l += 1;
  	var ixti = blob.read_shift(2); // XtiIndex
  	if(opts && opts.biff == 5) blob.l += 12;
  	var loc = parse_RgceLoc(blob, 0, opts); // TODO: or RgceLocRel
  	return [type, ixti, loc];
  }
  
  
  /* [MS-XLS] 2.5.198.62 ; [MS-XLSB] 2.5.97.45 TODO */
  function parse_PtgFunc(blob, length, opts) {
  	//var ptg = blob[blob.l] & 0x1F;
  	var type = (blob[blob.l] & 0x60)>>5;
  	blob.l += 1;
  	var iftab = blob.read_shift(opts && opts.biff <= 3 ? 1 : 2);
  	return [FtabArgc[iftab], Ftab[iftab], type];
  }
  /* [MS-XLS] 2.5.198.63 ; [MS-XLSB] 2.5.97.46 TODO */
  function parse_PtgFuncVar(blob, length, opts) {
  	var type = blob[blob.l++];
  	var cparams = blob.read_shift(1), tab = opts && opts.biff <= 3 ? [(type == 0x58 ? -1 : 0), blob.read_shift(1)]: parsetab(blob);
  	return [cparams, (tab[0] === 0 ? Ftab : Cetab)[tab[1]]];
  }
  
  function parsetab(blob) {
  	return [blob[blob.l+1]>>7, blob.read_shift(2) & 0x7FFF];
  }
  
  /* [MS-XLS] 2.5.198.41 ; [MS-XLSB] 2.5.97.33 */
  function parse_PtgAttrSum(blob, length, opts) {
  	blob.l += opts && opts.biff == 2 ? 3 : 4; return;
  }
  
  /* [MS-XLS] 2.5.198.58 ; [MS-XLSB] 2.5.97.40 */
  function parse_PtgExp(blob, length, opts) {
  	blob.l++;
  	if(opts && opts.biff == 12) return [blob.read_shift(4, 'i'), 0];
  	var row = blob.read_shift(2);
  	var col = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	return [row, col];
  }
  
  /* [MS-XLS] 2.5.198.57 ; [MS-XLSB] 2.5.97.39 */
  function parse_PtgErr(blob) { blob.l++; return BErr[blob.read_shift(1)]; }
  
  /* [MS-XLS] 2.5.198.66 ; [MS-XLSB] 2.5.97.49 */
  function parse_PtgInt(blob) { blob.l++; return blob.read_shift(2); }
  
  /* [MS-XLS] 2.5.198.42 ; [MS-XLSB] 2.5.97.34 */
  function parse_PtgBool(blob) { blob.l++; return blob.read_shift(1)!==0;}
  
  /* [MS-XLS] 2.5.198.79 ; [MS-XLSB] 2.5.97.63 */
  function parse_PtgNum(blob) { blob.l++; return parse_Xnum(blob, 8); }
  
  /* [MS-XLS] 2.5.198.89 ; [MS-XLSB] 2.5.97.74 */
  function parse_PtgStr(blob, length, opts) { blob.l++; return parse_ShortXLUnicodeString(blob, length-1, opts); }
  
  /* [MS-XLS] 2.5.192.112 + 2.5.192.11{3,4,5,6,7} */
  /* [MS-XLSB] 2.5.97.93 + 2.5.97.9{4,5,6,7} */
  function parse_SerAr(blob, biff) {
  	var val = [blob.read_shift(1)];
  	if(biff == 12) switch(val[0]) {
  		case 0x02: val[0] = 0x04; break; /* SerBool */
  		case 0x04: val[0] = 0x10; break; /* SerErr */
  		case 0x00: val[0] = 0x01; break; /* SerNum */
  		case 0x01: val[0] = 0x02; break; /* SerStr */
  	}
  	switch(val[0]) {
  		case 0x04: /* SerBool -- boolean */
  			val[1] = parsebool(blob, 1) ? 'TRUE' : 'FALSE';
  			if(biff != 12) blob.l += 7; break;
  		case 0x25: /* appears to be an alias */
  		case 0x10: /* SerErr -- error */
  			val[1] = BErr[blob[blob.l]];
  			blob.l += ((biff == 12) ? 4 : 8); break;
  		case 0x00: /* SerNil -- honestly, I'm not sure how to reproduce this */
  			blob.l += 8; break;
  		case 0x01: /* SerNum -- Xnum */
  			val[1] = parse_Xnum(blob, 8); break;
  		case 0x02: /* SerStr -- XLUnicodeString (<256 chars) */
  			val[1] = parse_XLUnicodeString2(blob, 0, {biff:biff > 0 && biff < 8 ? 2 : biff}); break;
  		default: throw new Error("Bad SerAr: " + val[0]); /* Unreachable */
  	}
  	return val;
  }
  
  /* [MS-XLS] 2.5.198.61 ; [MS-XLSB] 2.5.97.44 */
  function parse_PtgExtraMem(blob, cce, opts) {
  	var count = blob.read_shift((opts.biff == 12) ? 4 : 2);
  	var out = [];
  	for(var i = 0; i != count; ++i) out.push(((opts.biff == 12) ? parse_UncheckedRfX : parse_Ref8U)(blob, 8));
  	return out;
  }
  
  /* [MS-XLS] 2.5.198.59 ; [MS-XLSB] 2.5.97.41 */
  function parse_PtgExtraArray(blob, length, opts) {
  	var rows = 0, cols = 0;
  	if(opts.biff == 12) {
  		rows = blob.read_shift(4); // DRw
  		cols = blob.read_shift(4); // DCol
  	} else {
  		cols = 1 + blob.read_shift(1); //DColByteU
  		rows = 1 + blob.read_shift(2); //DRw
  	}
  	if(opts.biff >= 2 && opts.biff < 8) { --rows; if(--cols == 0) cols = 0x100; }
  	// $FlowIgnore
  	for(var i = 0, o = []; i != rows && (o[i] = []); ++i)
  		for(var j = 0; j != cols; ++j) o[i][j] = parse_SerAr(blob, opts.biff);
  	return o;
  }
  
  /* [MS-XLS] 2.5.198.76 ; [MS-XLSB] 2.5.97.60 */
  function parse_PtgName(blob, length, opts) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var w = (!opts || (opts.biff >= 8)) ? 4 : 2;
  	var nameindex = blob.read_shift(w);
  	switch(opts.biff) {
  		case 2: blob.l += 5; break;
  		case 3: case 4: blob.l += 8; break;
  		case 5: blob.l += 12; break;
  	}
  	return [type, 0, nameindex];
  }
  
  /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61 */
  function parse_PtgNameX(blob, length, opts) {
  	if(opts.biff == 5) return parse_PtgNameX_BIFF5(blob, length, opts);
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var ixti = blob.read_shift(2); // XtiIndex
  	var nameindex = blob.read_shift(4);
  	return [type, ixti, nameindex];
  }
  function parse_PtgNameX_BIFF5(blob) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var ixti = blob.read_shift(2, 'i'); // XtiIndex
  	blob.l += 8;
  	var nameindex = blob.read_shift(2);
  	blob.l += 12;
  	return [type, ixti, nameindex];
  }
  
  /* [MS-XLS] 2.5.198.70 ; [MS-XLSB] 2.5.97.54 */
  function parse_PtgMemArea(blob, length, opts) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	blob.l += (opts && opts.biff == 2 ? 3 : 4);
  	var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	return [type, cce];
  }
  
  /* [MS-XLS] 2.5.198.72 ; [MS-XLSB] 2.5.97.56 */
  function parse_PtgMemFunc(blob, length, opts) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
  	return [type, cce];
  }
  
  
  /* [MS-XLS] 2.5.198.86 ; [MS-XLSB] 2.5.97.69 */
  function parse_PtgRefErr(blob, length, opts) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	blob.l += 4;
  	if(opts.biff < 8) blob.l--;
  	if(opts.biff == 12) blob.l += 2;
  	return [type];
  }
  
  /* [MS-XLS] 2.5.198.87 ; [MS-XLSB] 2.5.97.71 */
  function parse_PtgRefErr3d(blob, length, opts) {
  	var type = (blob[blob.l++] & 0x60) >> 5;
  	var ixti = blob.read_shift(2);
  	var w = 4;
  	if(opts) switch(opts.biff) {
  		case 5: w = 15; break;
  		case 12: w = 6; break;
  	}
  	blob.l += w;
  	return [type, ixti];
  }
  
  /* [MS-XLS] 2.5.198.71 ; [MS-XLSB] 2.5.97.55 */
  var parse_PtgMemErr = parsenoop;
  /* [MS-XLS] 2.5.198.73  ; [MS-XLSB] 2.5.97.57 */
  var parse_PtgMemNoMem = parsenoop;
  /* [MS-XLS] 2.5.198.92 */
  var parse_PtgTbl = parsenoop;
  
  function parse_PtgElfLoc(blob, length, opts) {
  	blob.l += 2;
  	return [parse_RgceElfLoc(blob, 4, opts)];
  }
  function parse_PtgElfNoop(blob) {
  	blob.l += 6;
  	return [];
  }
  /* [MS-XLS] 2.5.198.46 */
  var parse_PtgElfCol = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.47 */
  var parse_PtgElfColS = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.48 */
  var parse_PtgElfColSV = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.49 */
  var parse_PtgElfColV = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.50 */
  function parse_PtgElfLel(blob) {
  	blob.l += 2;
  	return [parseuint16(blob), blob.read_shift(2) & 0x01];
  }
  /* [MS-XLS] 2.5.198.51 */
  var parse_PtgElfRadical = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.52 */
  var parse_PtgElfRadicalLel = parse_PtgElfLel;
  /* [MS-XLS] 2.5.198.53 */
  var parse_PtgElfRadicalS = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.54 */
  var parse_PtgElfRw = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.55 */
  var parse_PtgElfRwV = parse_PtgElfLoc;
  
  /* [MS-XLSB] 2.5.97.52 TODO */
  var PtgListRT = [
  	"Data",
  	"All",
  	"Headers",
  	"??",
  	"?Data2",
  	"??",
  	"?DataHeaders",
  	"??",
  	"Totals",
  	"??",
  	"??",
  	"??",
  	"?DataTotals",
  	"??",
  	"??",
  	"??",
  	"?Current"
  ];
  function parse_PtgList(blob) {
  	blob.l += 2;
  	var ixti = blob.read_shift(2);
  	var flags = blob.read_shift(2);
  	var idx = blob.read_shift(4);
  	var c = blob.read_shift(2);
  	var C = blob.read_shift(2);
  	var rt = PtgListRT[(flags >> 2) & 0x1F];
  	return {ixti: ixti, coltype:(flags&0x3), rt:rt, idx:idx, c:c, C:C};
  }
  /* [MS-XLS] 2.5.198.91 ; [MS-XLSB] 2.5.97.76 */
  function parse_PtgSxName(blob) {
  	blob.l += 2;
  	return [blob.read_shift(4)];
  }
  
  /* [XLS] old spec */
  function parse_PtgSheet(blob, length, opts) {
  	blob.l += 5;
  	blob.l += 2;
  	blob.l += (opts.biff == 2 ? 1 : 4);
  	return ["PTGSHEET"];
  }
  function parse_PtgEndSheet(blob, length, opts) {
  	blob.l += (opts.biff == 2 ? 4 : 5);
  	return ["PTGENDSHEET"];
  }
  function parse_PtgMemAreaN(blob) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var cce = blob.read_shift(2);
  	return [type, cce];
  }
  function parse_PtgMemNoMemN(blob) {
  	var type = (blob.read_shift(1) >>> 5) & 0x03;
  	var cce = blob.read_shift(2);
  	return [type, cce];
  }
  function parse_PtgAttrNoop(blob) {
  	blob.l += 4;
  	return [0, 0];
  }
  
  /* [MS-XLS] 2.5.198.25 ; [MS-XLSB] 2.5.97.16 */
  var PtgTypes = {
  0x01: { n:'PtgExp', f:parse_PtgExp },
  0x02: { n:'PtgTbl', f:parse_PtgTbl },
  0x03: { n:'PtgAdd', f:parseread1 },
  0x04: { n:'PtgSub', f:parseread1 },
  0x05: { n:'PtgMul', f:parseread1 },
  0x06: { n:'PtgDiv', f:parseread1 },
  0x07: { n:'PtgPower', f:parseread1 },
  0x08: { n:'PtgConcat', f:parseread1 },
  0x09: { n:'PtgLt', f:parseread1 },
  0x0A: { n:'PtgLe', f:parseread1 },
  0x0B: { n:'PtgEq', f:parseread1 },
  0x0C: { n:'PtgGe', f:parseread1 },
  0x0D: { n:'PtgGt', f:parseread1 },
  0x0E: { n:'PtgNe', f:parseread1 },
  0x0F: { n:'PtgIsect', f:parseread1 },
  0x10: { n:'PtgUnion', f:parseread1 },
  0x11: { n:'PtgRange', f:parseread1 },
  0x12: { n:'PtgUplus', f:parseread1 },
  0x13: { n:'PtgUminus', f:parseread1 },
  0x14: { n:'PtgPercent', f:parseread1 },
  0x15: { n:'PtgParen', f:parseread1 },
  0x16: { n:'PtgMissArg', f:parseread1 },
  0x17: { n:'PtgStr', f:parse_PtgStr },
  0x1A: { n:'PtgSheet', f:parse_PtgSheet },
  0x1B: { n:'PtgEndSheet', f:parse_PtgEndSheet },
  0x1C: { n:'PtgErr', f:parse_PtgErr },
  0x1D: { n:'PtgBool', f:parse_PtgBool },
  0x1E: { n:'PtgInt', f:parse_PtgInt },
  0x1F: { n:'PtgNum', f:parse_PtgNum },
  0x20: { n:'PtgArray', f:parse_PtgArray },
  0x21: { n:'PtgFunc', f:parse_PtgFunc },
  0x22: { n:'PtgFuncVar', f:parse_PtgFuncVar },
  0x23: { n:'PtgName', f:parse_PtgName },
  0x24: { n:'PtgRef', f:parse_PtgRef },
  0x25: { n:'PtgArea', f:parse_PtgArea },
  0x26: { n:'PtgMemArea', f:parse_PtgMemArea },
  0x27: { n:'PtgMemErr', f:parse_PtgMemErr },
  0x28: { n:'PtgMemNoMem', f:parse_PtgMemNoMem },
  0x29: { n:'PtgMemFunc', f:parse_PtgMemFunc },
  0x2A: { n:'PtgRefErr', f:parse_PtgRefErr },
  0x2B: { n:'PtgAreaErr', f:parse_PtgAreaErr },
  0x2C: { n:'PtgRefN', f:parse_PtgRefN },
  0x2D: { n:'PtgAreaN', f:parse_PtgAreaN },
  0x2E: { n:'PtgMemAreaN', f:parse_PtgMemAreaN },
  0x2F: { n:'PtgMemNoMemN', f:parse_PtgMemNoMemN },
  0x39: { n:'PtgNameX', f:parse_PtgNameX },
  0x3A: { n:'PtgRef3d', f:parse_PtgRef3d },
  0x3B: { n:'PtgArea3d', f:parse_PtgArea3d },
  0x3C: { n:'PtgRefErr3d', f:parse_PtgRefErr3d },
  0x3D: { n:'PtgAreaErr3d', f:parse_PtgAreaErr3d },
  0xFF: {}
  };
  /* These are duplicated in the PtgTypes table */
  var PtgDupes = {
  0x40: 0x20, 0x60: 0x20,
  0x41: 0x21, 0x61: 0x21,
  0x42: 0x22, 0x62: 0x22,
  0x43: 0x23, 0x63: 0x23,
  0x44: 0x24, 0x64: 0x24,
  0x45: 0x25, 0x65: 0x25,
  0x46: 0x26, 0x66: 0x26,
  0x47: 0x27, 0x67: 0x27,
  0x48: 0x28, 0x68: 0x28,
  0x49: 0x29, 0x69: 0x29,
  0x4A: 0x2A, 0x6A: 0x2A,
  0x4B: 0x2B, 0x6B: 0x2B,
  0x4C: 0x2C, 0x6C: 0x2C,
  0x4D: 0x2D, 0x6D: 0x2D,
  0x4E: 0x2E, 0x6E: 0x2E,
  0x4F: 0x2F, 0x6F: 0x2F,
  0x58: 0x22, 0x78: 0x22,
  0x59: 0x39, 0x79: 0x39,
  0x5A: 0x3A, 0x7A: 0x3A,
  0x5B: 0x3B, 0x7B: 0x3B,
  0x5C: 0x3C, 0x7C: 0x3C,
  0x5D: 0x3D, 0x7D: 0x3D
  };
  (function(){for(var y in PtgDupes) PtgTypes[y] = PtgTypes[PtgDupes[y]];})();
  
  var Ptg18 = {
  0x01: { n:'PtgElfLel', f:parse_PtgElfLel },
  0x02: { n:'PtgElfRw', f:parse_PtgElfRw },
  0x03: { n:'PtgElfCol', f:parse_PtgElfCol },
  0x06: { n:'PtgElfRwV', f:parse_PtgElfRwV },
  0x07: { n:'PtgElfColV', f:parse_PtgElfColV },
  0x0A: { n:'PtgElfRadical', f:parse_PtgElfRadical },
  0x0B: { n:'PtgElfRadicalS', f:parse_PtgElfRadicalS },
  0x0D: { n:'PtgElfColS', f:parse_PtgElfColS },
  0x0F: { n:'PtgElfColSV', f:parse_PtgElfColSV },
  0x10: { n:'PtgElfRadicalLel', f:parse_PtgElfRadicalLel },
  0x19: { n:'PtgList', f:parse_PtgList },
  0x1D: { n:'PtgSxName', f:parse_PtgSxName },
  0xFF: {}
  };
  var Ptg19 = {
  0x00: { n:'PtgAttrNoop', f:parse_PtgAttrNoop },
  0x01: { n:'PtgAttrSemi', f:parse_PtgAttrSemi },
  0x02: { n:'PtgAttrIf', f:parse_PtgAttrIf },
  0x04: { n:'PtgAttrChoose', f:parse_PtgAttrChoose },
  0x08: { n:'PtgAttrGoto', f:parse_PtgAttrGoto },
  0x10: { n:'PtgAttrSum', f:parse_PtgAttrSum },
  0x20: { n:'PtgAttrBaxcel', f:parse_PtgAttrBaxcel },
  0x40: { n:'PtgAttrSpace', f:parse_PtgAttrSpace },
  0x41: { n:'PtgAttrSpaceSemi', f:parse_PtgAttrSpaceSemi },
  0x80: { n:'PtgAttrIfError', f:parse_PtgAttrIfError },
  0xFF: {}
  };
  Ptg19[0x21] = Ptg19[0x20];
  
  /* [MS-XLS] 2.5.198.103 ; [MS-XLSB] 2.5.97.87 */
  function parse_RgbExtra(blob, length, rgce, opts) {
  	if(opts.biff < 8) return parsenoop(blob, length);
  	var target = blob.l + length;
  	var o = [];
  	for(var i = 0; i !== rgce.length; ++i) {
  		switch(rgce[i][0]) {
  			case 'PtgArray': /* PtgArray -> PtgExtraArray */
  				rgce[i][1] = parse_PtgExtraArray(blob, 0, opts);
  				o.push(rgce[i][1]);
  				break;
  			case 'PtgMemArea': /* PtgMemArea -> PtgExtraMem */
  				rgce[i][2] = parse_PtgExtraMem(blob, rgce[i][1], opts);
  				o.push(rgce[i][2]);
  				break;
  			case 'PtgExp': /* PtgExp -> PtgExtraCol */
  				if(opts && opts.biff == 12) {
  					rgce[i][1][1] = blob.read_shift(4);
  					o.push(rgce[i][1]);
  				} break;
  			case 'PtgList': /* TODO: PtgList -> PtgExtraList */
  			case 'PtgElfRadicalS': /* TODO: PtgElfRadicalS -> PtgExtraElf */
  			case 'PtgElfColS': /* TODO: PtgElfColS -> PtgExtraElf */
  			case 'PtgElfColSV': /* TODO: PtgElfColSV -> PtgExtraElf */
  				throw "Unsupported " + rgce[i][0];
  			default: break;
  		}
  	}
  	length = target - blob.l;
  	/* note: this is technically an error but Excel disregards */
  	//if(target !== blob.l && blob.l !== target - length) throw new Error(target + " != " + blob.l);
  	if(length !== 0) o.push(parsenoop(blob, length));
  	return o;
  }
  
  /* [MS-XLS] 2.5.198.104 ; [MS-XLSB] 2.5.97.88 */
  function parse_Rgce(blob, length, opts) {
  	var target = blob.l + length;
  	var R, id, ptgs = [];
  	while(target != blob.l) {
  		length = target - blob.l;
  		id = blob[blob.l];
  		R = PtgTypes[id];
  		if(id === 0x18 || id === 0x19) R = (id === 0x18 ? Ptg18 : Ptg19)[blob[blob.l + 1]];
  		if(!R || !R.f) { /*ptgs.push*/(parsenoop(blob, length)); }
  		else { ptgs.push([R.n, R.f(blob, length, opts)]); }
  	}
  	return ptgs;
  }
  
  function stringify_array(f) {
  	var o = [];
  	for(var i = 0; i < f.length; ++i) {
  		var x = f[i], r = [];
  		for(var j = 0; j < x.length; ++j) {
  			var y = x[j];
  			if(y) switch(y[0]) {
  				// TODO: handle embedded quotes
  				case 0x02:
  r.push('"' + y[1].replace(/"/g,'""') + '"'); break;
  				default: r.push(y[1]);
  			} else r.push("");
  		}
  		o.push(r.join(","));
  	}
  	return o.join(";");
  }
  
  /* [MS-XLS] 2.2.2 ; [MS-XLSB] 2.2.2 TODO */
  var PtgBinOp = {
  	PtgAdd: "+",
  	PtgConcat: "&",
  	PtgDiv: "/",
  	PtgEq: "=",
  	PtgGe: ">=",
  	PtgGt: ">",
  	PtgLe: "<=",
  	PtgLt: "<",
  	PtgMul: "*",
  	PtgNe: "<>",
  	PtgPower: "^",
  	PtgSub: "-"
  };
  function formula_quote_sheet_name(sname, opts) {
  	if(!sname && !(opts && opts.biff <= 5 && opts.biff >= 2)) throw new Error("empty sheet name");
  	if(sname.indexOf(" ") > -1) return "'" + sname + "'";
  	return sname;
  }
  function get_ixti_raw(supbooks, ixti, opts) {
  	if(!supbooks) return "SH33TJSERR0";
  	if(!supbooks.XTI) return "SH33TJSERR6";
  	var XTI = supbooks.XTI[ixti];
  	if(opts.biff > 8 && !supbooks.XTI[ixti]) return supbooks.SheetNames[ixti];
  	if(opts.biff < 8) {
  		if(ixti > 10000) ixti-= 65536;
  		if(ixti < 0) ixti = -ixti;
  		return ixti == 0 ? "" : supbooks.XTI[ixti - 1];
  	}
  	if(!XTI) return "SH33TJSERR1";
  	var o = "";
  	if(opts.biff > 8) switch(supbooks[XTI[0]][0]) {
  		case 0x0165: /* 'BrtSupSelf' */
  			o = XTI[1] == -1 ? "#REF" : supbooks.SheetNames[XTI[1]];
  			return XTI[1] == XTI[2] ? o : o + ":" + supbooks.SheetNames[XTI[2]];
  		case 0x0166: /* 'BrtSupSame' */
  			if(opts.SID != null) return supbooks.SheetNames[opts.SID];
  			return "SH33TJSSAME" + supbooks[XTI[0]][0];
  		case 0x0163: /* 'BrtSupBookSrc' */
  			/* falls through */
  		default: return "SH33TJSSRC" + supbooks[XTI[0]][0];
  	}
  	switch(supbooks[XTI[0]][0][0]) {
  		case 0x0401:
  			o = XTI[1] == -1 ? "#REF" : (supbooks.SheetNames[XTI[1]] || "SH33TJSERR3");
  			return XTI[1] == XTI[2] ? o : o + ":" + supbooks.SheetNames[XTI[2]];
  		case 0x3A01: return "SH33TJSERR8";
  		default:
  			if(!supbooks[XTI[0]][0][3]) return "SH33TJSERR2";
  			o = XTI[1] == -1 ? "#REF" : (supbooks[XTI[0]][0][3][XTI[1]] || "SH33TJSERR4");
  			return XTI[1] == XTI[2] ? o : o + ":" + supbooks[XTI[0]][0][3][XTI[2]];
  	}
  }
  function get_ixti(supbooks, ixti, opts) {
  	return formula_quote_sheet_name(get_ixti_raw(supbooks, ixti, opts), opts);
  }
  function stringify_formula(formula/*Array<any>*/, range, cell, supbooks, opts) {
  	var biff = (opts && opts.biff) || 8;
  	var _range = /*range != null ? range :*/ {s:{c:0, r:0},e:{c:0, r:0}};
  	var stack = [], e1, e2,  c, ixti=0, nameidx=0, r, sname="";
  	if(!formula[0] || !formula[0][0]) return "";
  	var last_sp = -1, sp = "";
  	for(var ff = 0, fflen = formula[0].length; ff < fflen; ++ff) {
  		var f = formula[0][ff];
  		switch(f[0]) {
  			case 'PtgUminus': /* [MS-XLS] 2.5.198.93 */
  				stack.push("-" + stack.pop()); break;
  			case 'PtgUplus': /* [MS-XLS] 2.5.198.95 */
  				stack.push("+" + stack.pop()); break;
  			case 'PtgPercent': /* [MS-XLS] 2.5.198.81 */
  				stack.push(stack.pop() + "%"); break;
  
  			case 'PtgAdd':    /* [MS-XLS] 2.5.198.26 */
  			case 'PtgConcat': /* [MS-XLS] 2.5.198.43 */
  			case 'PtgDiv':    /* [MS-XLS] 2.5.198.45 */
  			case 'PtgEq':     /* [MS-XLS] 2.5.198.56 */
  			case 'PtgGe':     /* [MS-XLS] 2.5.198.64 */
  			case 'PtgGt':     /* [MS-XLS] 2.5.198.65 */
  			case 'PtgLe':     /* [MS-XLS] 2.5.198.68 */
  			case 'PtgLt':     /* [MS-XLS] 2.5.198.69 */
  			case 'PtgMul':    /* [MS-XLS] 2.5.198.75 */
  			case 'PtgNe':     /* [MS-XLS] 2.5.198.78 */
  			case 'PtgPower':  /* [MS-XLS] 2.5.198.82 */
  			case 'PtgSub':    /* [MS-XLS] 2.5.198.90 */
  				e1 = stack.pop(); e2 = stack.pop();
  				if(last_sp >= 0) {
  					switch(formula[0][last_sp][1][0]) {
  						case 0:
  							// $FlowIgnore
  							sp = fill(" ", formula[0][last_sp][1][1]); break;
  						case 1:
  							// $FlowIgnore
  							sp = fill("\r", formula[0][last_sp][1][1]); break;
  						default:
  							sp = "";
  							// $FlowIgnore
  							if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + formula[0][last_sp][1][0]);
  					}
  					e2 = e2 + sp;
  					last_sp = -1;
  				}
  				stack.push(e2+PtgBinOp[f[0]]+e1);
  				break;
  
  			case 'PtgIsect': /* [MS-XLS] 2.5.198.67 */
  				e1 = stack.pop(); e2 = stack.pop();
  				stack.push(e2+" "+e1);
  				break;
  			case 'PtgUnion': /* [MS-XLS] 2.5.198.94 */
  				e1 = stack.pop(); e2 = stack.pop();
  				stack.push(e2+","+e1);
  				break;
  			case 'PtgRange': /* [MS-XLS] 2.5.198.83 */
  				e1 = stack.pop(); e2 = stack.pop();
  				stack.push(e2+":"+e1);
  				break;
  
  			case 'PtgAttrChoose': /* [MS-XLS] 2.5.198.34 */
  				break;
  			case 'PtgAttrGoto': /* [MS-XLS] 2.5.198.35 */
  				break;
  			case 'PtgAttrIf': /* [MS-XLS] 2.5.198.36 */
  				break;
  			case 'PtgAttrIfError': /* [MS-XLSB] 2.5.97.28 */
  				break;
  
  
  			case 'PtgRef': /* [MS-XLS] 2.5.198.84 */
  c = shift_cell_xls((f[1][1]), _range, opts);
  				stack.push(encode_cell_xls(c, biff));
  				break;
  			case 'PtgRefN': /* [MS-XLS] 2.5.198.88 */
  c = cell ? shift_cell_xls((f[1][1]), cell, opts) : (f[1][1]);
  				stack.push(encode_cell_xls(c, biff));
  				break;
  			case 'PtgRef3d': /* [MS-XLS] 2.5.198.85 */
  ixti = f[1][1]; c = shift_cell_xls((f[1][2]), _range, opts);
  				sname = get_ixti(supbooks, ixti, opts);
  				var w = sname; /* IE9 fails on defined names */ // eslint-disable-line no-unused-vars
  				stack.push(sname + "!" + encode_cell_xls(c, biff));
  				break;
  
  			case 'PtgFunc': /* [MS-XLS] 2.5.198.62 */
  			case 'PtgFuncVar': /* [MS-XLS] 2.5.198.63 */
  				/* f[1] = [argc, func, type] */
  				var argc = (f[1][0]), func = (f[1][1]);
  				if(!argc) argc = 0;
  				argc &= 0x7F;
  				var args = argc == 0 ? [] : stack.slice(-argc);
  				stack.length -= argc;
  				if(func === 'User') func = args.shift();
  				stack.push(func + "(" + args.join(",") + ")");
  				break;
  
  			case 'PtgBool': /* [MS-XLS] 2.5.198.42 */
  				stack.push(f[1] ? "TRUE" : "FALSE"); break;
  			case 'PtgInt': /* [MS-XLS] 2.5.198.66 */
  				stack.push(f[1]); break;
  			case 'PtgNum': /* [MS-XLS] 2.5.198.79 TODO: precision? */
  				stack.push(String(f[1])); break;
  			case 'PtgStr': /* [MS-XLS] 2.5.198.89 */
  				// $FlowIgnore
  				stack.push('"' + f[1] + '"'); break;
  			case 'PtgErr': /* [MS-XLS] 2.5.198.57 */
  				stack.push(f[1]); break;
  			case 'PtgAreaN': /* [MS-XLS] 2.5.198.31 TODO */
  r = shift_range_xls(f[1][1], cell ? {s:cell} : _range, opts);
  				stack.push(encode_range_xls((r), opts));
  				break;
  			case 'PtgArea': /* [MS-XLS] 2.5.198.27 TODO: fixed points */
  r = shift_range_xls(f[1][1], _range, opts);
  				stack.push(encode_range_xls((r), opts));
  				break;
  			case 'PtgArea3d': /* [MS-XLS] 2.5.198.28 TODO */
  ixti = f[1][1]; r = f[1][2];
  				sname = get_ixti(supbooks, ixti, opts);
  				stack.push(sname + "!" + encode_range_xls((r), opts));
  				break;
  			case 'PtgAttrSum': /* [MS-XLS] 2.5.198.41 */
  				stack.push("SUM(" + stack.pop() + ")");
  				break;
  
  			case 'PtgAttrBaxcel': /* [MS-XLS] 2.5.198.33 */
  			case 'PtgAttrSemi': /* [MS-XLS] 2.5.198.37 */
  				break;
  
  			case 'PtgName': /* [MS-XLS] 2.5.198.76 ; [MS-XLSB] 2.5.97.60 TODO: revisions */
  				/* f[1] = type, 0, nameindex */
  				nameidx = (f[1][2]);
  				var lbl = (supbooks.names||[])[nameidx-1] || (supbooks[0]||[])[nameidx];
  				var name = lbl ? lbl.Name : "SH33TJSNAME" + String(nameidx);
  				if(name in XLSXFutureFunctions) name = XLSXFutureFunctions[name];
  				stack.push(name);
  				break;
  
  			case 'PtgNameX': /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61 TODO: revisions */
  				/* f[1] = type, ixti, nameindex */
  				var bookidx = (f[1][1]); nameidx = (f[1][2]); var externbook;
  				/* TODO: Properly handle missing values */
  				if(opts.biff <= 5) {
  					if(bookidx < 0) bookidx = -bookidx;
  					if(supbooks[bookidx]) externbook = supbooks[bookidx][nameidx];
  				} else {
  					var o = "";
  					if(((supbooks[bookidx]||[])[0]||[])[0] == 0x3A01){/* empty */}
  					else if(((supbooks[bookidx]||[])[0]||[])[0] == 0x0401){
  						if(supbooks[bookidx][nameidx] && supbooks[bookidx][nameidx].itab > 0) {
  							o = supbooks.SheetNames[supbooks[bookidx][nameidx].itab-1] + "!";
  						}
  					}
  					else o = supbooks.SheetNames[nameidx-1]+ "!";
  					if(supbooks[bookidx] && supbooks[bookidx][nameidx]) o += supbooks[bookidx][nameidx].Name;
  					else if(supbooks[0] && supbooks[0][nameidx]) o += supbooks[0][nameidx].Name;
  					else o += "SH33TJSERRX";
  					stack.push(o);
  					break;
  				}
  				if(!externbook) externbook = {Name: "SH33TJSERRY"};
  				stack.push(externbook.Name);
  				break;
  
  			case 'PtgParen': /* [MS-XLS] 2.5.198.80 */
  				var lp = '(', rp = ')';
  				if(last_sp >= 0) {
  					sp = "";
  					switch(formula[0][last_sp][1][0]) {
  						// $FlowIgnore
  						case 2: lp = fill(" ", formula[0][last_sp][1][1]) + lp; break;
  						// $FlowIgnore
  						case 3: lp = fill("\r", formula[0][last_sp][1][1]) + lp; break;
  						// $FlowIgnore
  						case 4: rp = fill(" ", formula[0][last_sp][1][1]) + rp; break;
  						// $FlowIgnore
  						case 5: rp = fill("\r", formula[0][last_sp][1][1]) + rp; break;
  						default:
  							// $FlowIgnore
  							if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + formula[0][last_sp][1][0]);
  					}
  					last_sp = -1;
  				}
  				stack.push(lp + stack.pop() + rp); break;
  
  			case 'PtgRefErr': /* [MS-XLS] 2.5.198.86 */
  				stack.push('#REF!'); break;
  
  			case 'PtgRefErr3d': /* [MS-XLS] 2.5.198.87 */
  				stack.push('#REF!'); break;
  
  			case 'PtgExp': /* [MS-XLS] 2.5.198.58 TODO */
  				c = {c:(f[1][1]),r:(f[1][0])};
  				var q = ({c: cell.c, r:cell.r});
  				if(supbooks.sharedf[encode_cell(c)]) {
  					var parsedf = (supbooks.sharedf[encode_cell(c)]);
  					stack.push(stringify_formula(parsedf, _range, q, supbooks, opts));
  				}
  				else {
  					var fnd = false;
  					for(e1=0;e1!=supbooks.arrayf.length; ++e1) {
  						/* TODO: should be something like range_has */
  						e2 = supbooks.arrayf[e1];
  						if(c.c < e2[0].s.c || c.c > e2[0].e.c) continue;
  						if(c.r < e2[0].s.r || c.r > e2[0].e.r) continue;
  						stack.push(stringify_formula(e2[1], _range, q, supbooks, opts));
  						fnd = true;
  						break;
  					}
  					if(!fnd) stack.push(f[1]);
  				}
  				break;
  
  			case 'PtgArray': /* [MS-XLS] 2.5.198.32 TODO */
  				stack.push("{" + stringify_array(f[1]) + "}");
  				break;
  
  			case 'PtgMemArea': /* [MS-XLS] 2.5.198.70 TODO: confirm this is a non-display */
  				//stack.push("(" + f[2].map(encode_range).join(",") + ")");
  				break;
  
  			case 'PtgAttrSpace': /* [MS-XLS] 2.5.198.38 */
  			case 'PtgAttrSpaceSemi': /* [MS-XLS] 2.5.198.39 */
  				last_sp = ff;
  				break;
  
  			case 'PtgTbl': /* [MS-XLS] 2.5.198.92 TODO */
  				break;
  
  			case 'PtgMemErr': /* [MS-XLS] 2.5.198.71 */
  				break;
  
  			case 'PtgMissArg': /* [MS-XLS] 2.5.198.74 */
  				stack.push("");
  				break;
  
  			case 'PtgAreaErr': /* [MS-XLS] 2.5.198.29 */
  				stack.push("#REF!"); break;
  
  			case 'PtgAreaErr3d': /* [MS-XLS] 2.5.198.30 */
  				stack.push("#REF!"); break;
  
  			case 'PtgList': /* [MS-XLSB] 2.5.97.52 */
  				// $FlowIgnore
  				stack.push("Table" + f[1].idx + "[#" + f[1].rt + "]");
  				break;
  
  			case 'PtgMemAreaN':
  			case 'PtgMemNoMemN':
  			case 'PtgAttrNoop':
  			case 'PtgSheet':
  			case 'PtgEndSheet':
  				break;
  
  			case 'PtgMemFunc': /* [MS-XLS] 2.5.198.72 TODO */
  				break;
  			case 'PtgMemNoMem': /* [MS-XLS] 2.5.198.73 TODO */
  				break;
  
  			case 'PtgElfCol': /* [MS-XLS] 2.5.198.46 */
  			case 'PtgElfColS': /* [MS-XLS] 2.5.198.47 */
  			case 'PtgElfColSV': /* [MS-XLS] 2.5.198.48 */
  			case 'PtgElfColV': /* [MS-XLS] 2.5.198.49 */
  			case 'PtgElfLel': /* [MS-XLS] 2.5.198.50 */
  			case 'PtgElfRadical': /* [MS-XLS] 2.5.198.51 */
  			case 'PtgElfRadicalLel': /* [MS-XLS] 2.5.198.52 */
  			case 'PtgElfRadicalS': /* [MS-XLS] 2.5.198.53 */
  			case 'PtgElfRw': /* [MS-XLS] 2.5.198.54 */
  			case 'PtgElfRwV': /* [MS-XLS] 2.5.198.55 */
  				throw new Error("Unsupported ELFs");
  
  			case 'PtgSxName': /* [MS-XLS] 2.5.198.91 TODO -- find a test case */
  				throw new Error('Unrecognized Formula Token: ' + String(f));
  			default: throw new Error('Unrecognized Formula Token: ' + String(f));
  		}
  		var PtgNonDisp = ['PtgAttrSpace', 'PtgAttrSpaceSemi', 'PtgAttrGoto'];
  		if(opts.biff != 3) if(last_sp >= 0 && PtgNonDisp.indexOf(formula[0][ff][0]) == -1) {
  			f = formula[0][last_sp];
  			var _left = true;
  			switch(f[1][0]) {
  				/* note: some bad XLSB files omit the PtgParen */
  				case 4: _left = false;
  				/* falls through */
  				case 0:
  					// $FlowIgnore
  					sp = fill(" ", f[1][1]); break;
  				case 5: _left = false;
  				/* falls through */
  				case 1:
  					// $FlowIgnore
  					sp = fill("\r", f[1][1]); break;
  				default:
  					sp = "";
  					// $FlowIgnore
  					if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + f[1][0]);
  			}
  			stack.push((_left ? sp : "") + stack.pop() + (_left ? "" : sp));
  			last_sp = -1;
  		}
  	}
  	if(stack.length > 1 && opts.WTF) throw new Error("bad formula stack");
  	return stack[0];
  }
  
  /* [MS-XLS] 2.5.198.1 TODO */
  function parse_ArrayParsedFormula(blob, length, opts) {
  	var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
  	var rgcb, cce = blob.read_shift(len); // length of rgce
  	if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
  	var rgce = parse_Rgce(blob, cce, opts);
  	if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
  	blob.l = target;
  	return [rgce, rgcb];
  }
  
  /* [MS-XLS] 2.5.198.3 TODO */
  function parse_XLSCellParsedFormula(blob, length, opts) {
  	var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
  	var rgcb, cce = blob.read_shift(len); // length of rgce
  	if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
  	var rgce = parse_Rgce(blob, cce, opts);
  	if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
  	blob.l = target;
  	return [rgce, rgcb];
  }
  
  /* [MS-XLS] 2.5.198.21 */
  function parse_NameParsedFormula(blob, length, opts, cce) {
  	var target = blob.l + length;
  	var rgce = parse_Rgce(blob, cce, opts);
  	var rgcb;
  	if(target !== blob.l) rgcb = parse_RgbExtra(blob, target - blob.l, rgce, opts);
  	return [rgce, rgcb];
  }
  
  /* [MS-XLS] 2.5.198.118 TODO */
  function parse_SharedParsedFormula(blob, length, opts) {
  	var target = blob.l + length;
  	var rgcb, cce = blob.read_shift(2); // length of rgce
  	var rgce = parse_Rgce(blob, cce, opts);
  	if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
  	if(length !== cce + 2) rgcb = parse_RgbExtra(blob, target - cce - 2, rgce, opts);
  	return [rgce, rgcb];
  }
  
  /* [MS-XLS] 2.5.133 TODO: how to emit empty strings? */
  function parse_FormulaValue(blob) {
  	var b;
  	if(__readUInt16LE(blob,blob.l + 6) !== 0xFFFF) return [parse_Xnum(blob),'n'];
  	switch(blob[blob.l]) {
  		case 0x00: blob.l += 8; return ["String", 's'];
  		case 0x01: b = blob[blob.l+2] === 0x1; blob.l += 8; return [b,'b'];
  		case 0x02: b = blob[blob.l+2]; blob.l += 8; return [b,'e'];
  		case 0x03: blob.l += 8; return ["",'s'];
  	}
  	return [];
  }
  
  /* [MS-XLS] 2.4.127 TODO */
  function parse_Formula(blob, length, opts) {
  	var end = blob.l + length;
  	var cell = parse_XLSCell(blob, 6);
  	if(opts.biff == 2) ++blob.l;
  	var val = parse_FormulaValue(blob,8);
  	var flags = blob.read_shift(1);
  	if(opts.biff != 2) {
  		blob.read_shift(1);
  		if(opts.biff >= 5) {
  			/*var chn = */blob.read_shift(4);
  		}
  	}
  	var cbf = parse_XLSCellParsedFormula(blob, end - blob.l, opts);
  	return {cell:cell, val:val[0], formula:cbf, shared: (flags >> 3) & 1, tt:val[1]};
  }
  
  /* XLSB Parsed Formula records have the same shape */
  function parse_XLSBParsedFormula(data, length, opts) {
  	var cce = data.read_shift(4);
  	var rgce = parse_Rgce(data, cce, opts);
  	var cb = data.read_shift(4);
  	var rgcb = cb > 0 ? parse_RgbExtra(data, cb, rgce, opts) : null;
  	return [rgce, rgcb];
  }
  
  /* [MS-XLSB] 2.5.97.1 ArrayParsedFormula */
  var parse_XLSBArrayParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.4 CellParsedFormula */
  var parse_XLSBCellParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.12 NameParsedFormula */
  var parse_XLSBNameParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.98 SharedParsedFormula */
  var parse_XLSBSharedParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLS] 2.5.198.4 */
  var Cetab = {
  0x0000: 'BEEP',
  0x0001: 'OPEN',
  0x0002: 'OPEN.LINKS',
  0x0003: 'CLOSE.ALL',
  0x0004: 'SAVE',
  0x0005: 'SAVE.AS',
  0x0006: 'FILE.DELETE',
  0x0007: 'PAGE.SETUP',
  0x0008: 'PRINT',
  0x0009: 'PRINTER.SETUP',
  0x000A: 'QUIT',
  0x000B: 'NEW.WINDOW',
  0x000C: 'ARRANGE.ALL',
  0x000D: 'WINDOW.SIZE',
  0x000E: 'WINDOW.MOVE',
  0x000F: 'FULL',
  0x0010: 'CLOSE',
  0x0011: 'RUN',
  0x0016: 'SET.PRINT.AREA',
  0x0017: 'SET.PRINT.TITLES',
  0x0018: 'SET.PAGE.BREAK',
  0x0019: 'REMOVE.PAGE.BREAK',
  0x001A: 'FONT',
  0x001B: 'DISPLAY',
  0x001C: 'PROTECT.DOCUMENT',
  0x001D: 'PRECISION',
  0x001E: 'A1.R1C1',
  0x001F: 'CALCULATE.NOW',
  0x0020: 'CALCULATION',
  0x0022: 'DATA.FIND',
  0x0023: 'EXTRACT',
  0x0024: 'DATA.DELETE',
  0x0025: 'SET.DATABASE',
  0x0026: 'SET.CRITERIA',
  0x0027: 'SORT',
  0x0028: 'DATA.SERIES',
  0x0029: 'TABLE',
  0x002A: 'FORMAT.NUMBER',
  0x002B: 'ALIGNMENT',
  0x002C: 'STYLE',
  0x002D: 'BORDER',
  0x002E: 'CELL.PROTECTION',
  0x002F: 'COLUMN.WIDTH',
  0x0030: 'UNDO',
  0x0031: 'CUT',
  0x0032: 'COPY',
  0x0033: 'PASTE',
  0x0034: 'CLEAR',
  0x0035: 'PASTE.SPECIAL',
  0x0036: 'EDIT.DELETE',
  0x0037: 'INSERT',
  0x0038: 'FILL.RIGHT',
  0x0039: 'FILL.DOWN',
  0x003D: 'DEFINE.NAME',
  0x003E: 'CREATE.NAMES',
  0x003F: 'FORMULA.GOTO',
  0x0040: 'FORMULA.FIND',
  0x0041: 'SELECT.LAST.CELL',
  0x0042: 'SHOW.ACTIVE.CELL',
  0x0043: 'GALLERY.AREA',
  0x0044: 'GALLERY.BAR',
  0x0045: 'GALLERY.COLUMN',
  0x0046: 'GALLERY.LINE',
  0x0047: 'GALLERY.PIE',
  0x0048: 'GALLERY.SCATTER',
  0x0049: 'COMBINATION',
  0x004A: 'PREFERRED',
  0x004B: 'ADD.OVERLAY',
  0x004C: 'GRIDLINES',
  0x004D: 'SET.PREFERRED',
  0x004E: 'AXES',
  0x004F: 'LEGEND',
  0x0050: 'ATTACH.TEXT',
  0x0051: 'ADD.ARROW',
  0x0052: 'SELECT.CHART',
  0x0053: 'SELECT.PLOT.AREA',
  0x0054: 'PATTERNS',
  0x0055: 'MAIN.CHART',
  0x0056: 'OVERLAY',
  0x0057: 'SCALE',
  0x0058: 'FORMAT.LEGEND',
  0x0059: 'FORMAT.TEXT',
  0x005A: 'EDIT.REPEAT',
  0x005B: 'PARSE',
  0x005C: 'JUSTIFY',
  0x005D: 'HIDE',
  0x005E: 'UNHIDE',
  0x005F: 'WORKSPACE',
  0x0060: 'FORMULA',
  0x0061: 'FORMULA.FILL',
  0x0062: 'FORMULA.ARRAY',
  0x0063: 'DATA.FIND.NEXT',
  0x0064: 'DATA.FIND.PREV',
  0x0065: 'FORMULA.FIND.NEXT',
  0x0066: 'FORMULA.FIND.PREV',
  0x0067: 'ACTIVATE',
  0x0068: 'ACTIVATE.NEXT',
  0x0069: 'ACTIVATE.PREV',
  0x006A: 'UNLOCKED.NEXT',
  0x006B: 'UNLOCKED.PREV',
  0x006C: 'COPY.PICTURE',
  0x006D: 'SELECT',
  0x006E: 'DELETE.NAME',
  0x006F: 'DELETE.FORMAT',
  0x0070: 'VLINE',
  0x0071: 'HLINE',
  0x0072: 'VPAGE',
  0x0073: 'HPAGE',
  0x0074: 'VSCROLL',
  0x0075: 'HSCROLL',
  0x0076: 'ALERT',
  0x0077: 'NEW',
  0x0078: 'CANCEL.COPY',
  0x0079: 'SHOW.CLIPBOARD',
  0x007A: 'MESSAGE',
  0x007C: 'PASTE.LINK',
  0x007D: 'APP.ACTIVATE',
  0x007E: 'DELETE.ARROW',
  0x007F: 'ROW.HEIGHT',
  0x0080: 'FORMAT.MOVE',
  0x0081: 'FORMAT.SIZE',
  0x0082: 'FORMULA.REPLACE',
  0x0083: 'SEND.KEYS',
  0x0084: 'SELECT.SPECIAL',
  0x0085: 'APPLY.NAMES',
  0x0086: 'REPLACE.FONT',
  0x0087: 'FREEZE.PANES',
  0x0088: 'SHOW.INFO',
  0x0089: 'SPLIT',
  0x008A: 'ON.WINDOW',
  0x008B: 'ON.DATA',
  0x008C: 'DISABLE.INPUT',
  0x008E: 'OUTLINE',
  0x008F: 'LIST.NAMES',
  0x0090: 'FILE.CLOSE',
  0x0091: 'SAVE.WORKBOOK',
  0x0092: 'DATA.FORM',
  0x0093: 'COPY.CHART',
  0x0094: 'ON.TIME',
  0x0095: 'WAIT',
  0x0096: 'FORMAT.FONT',
  0x0097: 'FILL.UP',
  0x0098: 'FILL.LEFT',
  0x0099: 'DELETE.OVERLAY',
  0x009B: 'SHORT.MENUS',
  0x009F: 'SET.UPDATE.STATUS',
  0x00A1: 'COLOR.PALETTE',
  0x00A2: 'DELETE.STYLE',
  0x00A3: 'WINDOW.RESTORE',
  0x00A4: 'WINDOW.MAXIMIZE',
  0x00A6: 'CHANGE.LINK',
  0x00A7: 'CALCULATE.DOCUMENT',
  0x00A8: 'ON.KEY',
  0x00A9: 'APP.RESTORE',
  0x00AA: 'APP.MOVE',
  0x00AB: 'APP.SIZE',
  0x00AC: 'APP.MINIMIZE',
  0x00AD: 'APP.MAXIMIZE',
  0x00AE: 'BRING.TO.FRONT',
  0x00AF: 'SEND.TO.BACK',
  0x00B9: 'MAIN.CHART.TYPE',
  0x00BA: 'OVERLAY.CHART.TYPE',
  0x00BB: 'SELECT.END',
  0x00BC: 'OPEN.MAIL',
  0x00BD: 'SEND.MAIL',
  0x00BE: 'STANDARD.FONT',
  0x00BF: 'CONSOLIDATE',
  0x00C0: 'SORT.SPECIAL',
  0x00C1: 'GALLERY.3D.AREA',
  0x00C2: 'GALLERY.3D.COLUMN',
  0x00C3: 'GALLERY.3D.LINE',
  0x00C4: 'GALLERY.3D.PIE',
  0x00C5: 'VIEW.3D',
  0x00C6: 'GOAL.SEEK',
  0x00C7: 'WORKGROUP',
  0x00C8: 'FILL.GROUP',
  0x00C9: 'UPDATE.LINK',
  0x00CA: 'PROMOTE',
  0x00CB: 'DEMOTE',
  0x00CC: 'SHOW.DETAIL',
  0x00CE: 'UNGROUP',
  0x00CF: 'OBJECT.PROPERTIES',
  0x00D0: 'SAVE.NEW.OBJECT',
  0x00D1: 'SHARE',
  0x00D2: 'SHARE.NAME',
  0x00D3: 'DUPLICATE',
  0x00D4: 'APPLY.STYLE',
  0x00D5: 'ASSIGN.TO.OBJECT',
  0x00D6: 'OBJECT.PROTECTION',
  0x00D7: 'HIDE.OBJECT',
  0x00D8: 'SET.EXTRACT',
  0x00D9: 'CREATE.PUBLISHER',
  0x00DA: 'SUBSCRIBE.TO',
  0x00DB: 'ATTRIBUTES',
  0x00DC: 'SHOW.TOOLBAR',
  0x00DE: 'PRINT.PREVIEW',
  0x00DF: 'EDIT.COLOR',
  0x00E0: 'SHOW.LEVELS',
  0x00E1: 'FORMAT.MAIN',
  0x00E2: 'FORMAT.OVERLAY',
  0x00E3: 'ON.RECALC',
  0x00E4: 'EDIT.SERIES',
  0x00E5: 'DEFINE.STYLE',
  0x00F0: 'LINE.PRINT',
  0x00F3: 'ENTER.DATA',
  0x00F9: 'GALLERY.RADAR',
  0x00FA: 'MERGE.STYLES',
  0x00FB: 'EDITION.OPTIONS',
  0x00FC: 'PASTE.PICTURE',
  0x00FD: 'PASTE.PICTURE.LINK',
  0x00FE: 'SPELLING',
  0x0100: 'ZOOM',
  0x0103: 'INSERT.OBJECT',
  0x0104: 'WINDOW.MINIMIZE',
  0x0109: 'SOUND.NOTE',
  0x010A: 'SOUND.PLAY',
  0x010B: 'FORMAT.SHAPE',
  0x010C: 'EXTEND.POLYGON',
  0x010D: 'FORMAT.AUTO',
  0x0110: 'GALLERY.3D.BAR',
  0x0111: 'GALLERY.3D.SURFACE',
  0x0112: 'FILL.AUTO',
  0x0114: 'CUSTOMIZE.TOOLBAR',
  0x0115: 'ADD.TOOL',
  0x0116: 'EDIT.OBJECT',
  0x0117: 'ON.DOUBLECLICK',
  0x0118: 'ON.ENTRY',
  0x0119: 'WORKBOOK.ADD',
  0x011A: 'WORKBOOK.MOVE',
  0x011B: 'WORKBOOK.COPY',
  0x011C: 'WORKBOOK.OPTIONS',
  0x011D: 'SAVE.WORKSPACE',
  0x0120: 'CHART.WIZARD',
  0x0121: 'DELETE.TOOL',
  0x0122: 'MOVE.TOOL',
  0x0123: 'WORKBOOK.SELECT',
  0x0124: 'WORKBOOK.ACTIVATE',
  0x0125: 'ASSIGN.TO.TOOL',
  0x0127: 'COPY.TOOL',
  0x0128: 'RESET.TOOL',
  0x0129: 'CONSTRAIN.NUMERIC',
  0x012A: 'PASTE.TOOL',
  0x012E: 'WORKBOOK.NEW',
  0x0131: 'SCENARIO.CELLS',
  0x0132: 'SCENARIO.DELETE',
  0x0133: 'SCENARIO.ADD',
  0x0134: 'SCENARIO.EDIT',
  0x0135: 'SCENARIO.SHOW',
  0x0136: 'SCENARIO.SHOW.NEXT',
  0x0137: 'SCENARIO.SUMMARY',
  0x0138: 'PIVOT.TABLE.WIZARD',
  0x0139: 'PIVOT.FIELD.PROPERTIES',
  0x013A: 'PIVOT.FIELD',
  0x013B: 'PIVOT.ITEM',
  0x013C: 'PIVOT.ADD.FIELDS',
  0x013E: 'OPTIONS.CALCULATION',
  0x013F: 'OPTIONS.EDIT',
  0x0140: 'OPTIONS.VIEW',
  0x0141: 'ADDIN.MANAGER',
  0x0142: 'MENU.EDITOR',
  0x0143: 'ATTACH.TOOLBARS',
  0x0144: 'VBAActivate',
  0x0145: 'OPTIONS.CHART',
  0x0148: 'VBA.INSERT.FILE',
  0x014A: 'VBA.PROCEDURE.DEFINITION',
  0x0150: 'ROUTING.SLIP',
  0x0152: 'ROUTE.DOCUMENT',
  0x0153: 'MAIL.LOGON',
  0x0156: 'INSERT.PICTURE',
  0x0157: 'EDIT.TOOL',
  0x0158: 'GALLERY.DOUGHNUT',
  0x015E: 'CHART.TREND',
  0x0160: 'PIVOT.ITEM.PROPERTIES',
  0x0162: 'WORKBOOK.INSERT',
  0x0163: 'OPTIONS.TRANSITION',
  0x0164: 'OPTIONS.GENERAL',
  0x0172: 'FILTER.ADVANCED',
  0x0175: 'MAIL.ADD.MAILER',
  0x0176: 'MAIL.DELETE.MAILER',
  0x0177: 'MAIL.REPLY',
  0x0178: 'MAIL.REPLY.ALL',
  0x0179: 'MAIL.FORWARD',
  0x017A: 'MAIL.NEXT.LETTER',
  0x017B: 'DATA.LABEL',
  0x017C: 'INSERT.TITLE',
  0x017D: 'FONT.PROPERTIES',
  0x017E: 'MACRO.OPTIONS',
  0x017F: 'WORKBOOK.HIDE',
  0x0180: 'WORKBOOK.UNHIDE',
  0x0181: 'WORKBOOK.DELETE',
  0x0182: 'WORKBOOK.NAME',
  0x0184: 'GALLERY.CUSTOM',
  0x0186: 'ADD.CHART.AUTOFORMAT',
  0x0187: 'DELETE.CHART.AUTOFORMAT',
  0x0188: 'CHART.ADD.DATA',
  0x0189: 'AUTO.OUTLINE',
  0x018A: 'TAB.ORDER',
  0x018B: 'SHOW.DIALOG',
  0x018C: 'SELECT.ALL',
  0x018D: 'UNGROUP.SHEETS',
  0x018E: 'SUBTOTAL.CREATE',
  0x018F: 'SUBTOTAL.REMOVE',
  0x0190: 'RENAME.OBJECT',
  0x019C: 'WORKBOOK.SCROLL',
  0x019D: 'WORKBOOK.NEXT',
  0x019E: 'WORKBOOK.PREV',
  0x019F: 'WORKBOOK.TAB.SPLIT',
  0x01A0: 'FULL.SCREEN',
  0x01A1: 'WORKBOOK.PROTECT',
  0x01A4: 'SCROLLBAR.PROPERTIES',
  0x01A5: 'PIVOT.SHOW.PAGES',
  0x01A6: 'TEXT.TO.COLUMNS',
  0x01A7: 'FORMAT.CHARTTYPE',
  0x01A8: 'LINK.FORMAT',
  0x01A9: 'TRACER.DISPLAY',
  0x01AE: 'TRACER.NAVIGATE',
  0x01AF: 'TRACER.CLEAR',
  0x01B0: 'TRACER.ERROR',
  0x01B1: 'PIVOT.FIELD.GROUP',
  0x01B2: 'PIVOT.FIELD.UNGROUP',
  0x01B3: 'CHECKBOX.PROPERTIES',
  0x01B4: 'LABEL.PROPERTIES',
  0x01B5: 'LISTBOX.PROPERTIES',
  0x01B6: 'EDITBOX.PROPERTIES',
  0x01B7: 'PIVOT.REFRESH',
  0x01B8: 'LINK.COMBO',
  0x01B9: 'OPEN.TEXT',
  0x01BA: 'HIDE.DIALOG',
  0x01BB: 'SET.DIALOG.FOCUS',
  0x01BC: 'ENABLE.OBJECT',
  0x01BD: 'PUSHBUTTON.PROPERTIES',
  0x01BE: 'SET.DIALOG.DEFAULT',
  0x01BF: 'FILTER',
  0x01C0: 'FILTER.SHOW.ALL',
  0x01C1: 'CLEAR.OUTLINE',
  0x01C2: 'FUNCTION.WIZARD',
  0x01C3: 'ADD.LIST.ITEM',
  0x01C4: 'SET.LIST.ITEM',
  0x01C5: 'REMOVE.LIST.ITEM',
  0x01C6: 'SELECT.LIST.ITEM',
  0x01C7: 'SET.CONTROL.VALUE',
  0x01C8: 'SAVE.COPY.AS',
  0x01CA: 'OPTIONS.LISTS.ADD',
  0x01CB: 'OPTIONS.LISTS.DELETE',
  0x01CC: 'SERIES.AXES',
  0x01CD: 'SERIES.X',
  0x01CE: 'SERIES.Y',
  0x01CF: 'ERRORBAR.X',
  0x01D0: 'ERRORBAR.Y',
  0x01D1: 'FORMAT.CHART',
  0x01D2: 'SERIES.ORDER',
  0x01D3: 'MAIL.LOGOFF',
  0x01D4: 'CLEAR.ROUTING.SLIP',
  0x01D5: 'APP.ACTIVATE.MICROSOFT',
  0x01D6: 'MAIL.EDIT.MAILER',
  0x01D7: 'ON.SHEET',
  0x01D8: 'STANDARD.WIDTH',
  0x01D9: 'SCENARIO.MERGE',
  0x01DA: 'SUMMARY.INFO',
  0x01DB: 'FIND.FILE',
  0x01DC: 'ACTIVE.CELL.FONT',
  0x01DD: 'ENABLE.TIPWIZARD',
  0x01DE: 'VBA.MAKE.ADDIN',
  0x01E0: 'INSERTDATATABLE',
  0x01E1: 'WORKGROUP.OPTIONS',
  0x01E2: 'MAIL.SEND.MAILER',
  0x01E5: 'AUTOCORRECT',
  0x01E9: 'POST.DOCUMENT',
  0x01EB: 'PICKLIST',
  0x01ED: 'VIEW.SHOW',
  0x01EE: 'VIEW.DEFINE',
  0x01EF: 'VIEW.DELETE',
  0x01FD: 'SHEET.BACKGROUND',
  0x01FE: 'INSERT.MAP.OBJECT',
  0x01FF: 'OPTIONS.MENONO',
  0x0205: 'MSOCHECKS',
  0x0206: 'NORMAL',
  0x0207: 'LAYOUT',
  0x0208: 'RM.PRINT.AREA',
  0x0209: 'CLEAR.PRINT.AREA',
  0x020A: 'ADD.PRINT.AREA',
  0x020B: 'MOVE.BRK',
  0x0221: 'HIDECURR.NOTE',
  0x0222: 'HIDEALL.NOTES',
  0x0223: 'DELETE.NOTE',
  0x0224: 'TRAVERSE.NOTES',
  0x0225: 'ACTIVATE.NOTES',
  0x026C: 'PROTECT.REVISIONS',
  0x026D: 'UNPROTECT.REVISIONS',
  0x0287: 'OPTIONS.ME',
  0x028D: 'WEB.PUBLISH',
  0x029B: 'NEWWEBQUERY',
  0x02A1: 'PIVOT.TABLE.CHART',
  0x02F1: 'OPTIONS.SAVE',
  0x02F3: 'OPTIONS.SPELL',
  0x0328: 'HIDEALL.INKANNOTS'
  };
  
  /* [MS-XLS] 2.5.198.17 */
  /* [MS-XLSB] 2.5.97.10 */
  var Ftab = {
  0x0000: 'COUNT',
  0x0001: 'IF',
  0x0002: 'ISNA',
  0x0003: 'ISERROR',
  0x0004: 'SUM',
  0x0005: 'AVERAGE',
  0x0006: 'MIN',
  0x0007: 'MAX',
  0x0008: 'ROW',
  0x0009: 'COLUMN',
  0x000A: 'NA',
  0x000B: 'NPV',
  0x000C: 'STDEV',
  0x000D: 'DOLLAR',
  0x000E: 'FIXED',
  0x000F: 'SIN',
  0x0010: 'COS',
  0x0011: 'TAN',
  0x0012: 'ATAN',
  0x0013: 'PI',
  0x0014: 'SQRT',
  0x0015: 'EXP',
  0x0016: 'LN',
  0x0017: 'LOG10',
  0x0018: 'ABS',
  0x0019: 'INT',
  0x001A: 'SIGN',
  0x001B: 'ROUND',
  0x001C: 'LOOKUP',
  0x001D: 'INDEX',
  0x001E: 'REPT',
  0x001F: 'MID',
  0x0020: 'LEN',
  0x0021: 'VALUE',
  0x0022: 'TRUE',
  0x0023: 'FALSE',
  0x0024: 'AND',
  0x0025: 'OR',
  0x0026: 'NOT',
  0x0027: 'MOD',
  0x0028: 'DCOUNT',
  0x0029: 'DSUM',
  0x002A: 'DAVERAGE',
  0x002B: 'DMIN',
  0x002C: 'DMAX',
  0x002D: 'DSTDEV',
  0x002E: 'VAR',
  0x002F: 'DVAR',
  0x0030: 'TEXT',
  0x0031: 'LINEST',
  0x0032: 'TREND',
  0x0033: 'LOGEST',
  0x0034: 'GROWTH',
  0x0035: 'GOTO',
  0x0036: 'HALT',
  0x0037: 'RETURN',
  0x0038: 'PV',
  0x0039: 'FV',
  0x003A: 'NPER',
  0x003B: 'PMT',
  0x003C: 'RATE',
  0x003D: 'MIRR',
  0x003E: 'IRR',
  0x003F: 'RAND',
  0x0040: 'MATCH',
  0x0041: 'DATE',
  0x0042: 'TIME',
  0x0043: 'DAY',
  0x0044: 'MONTH',
  0x0045: 'YEAR',
  0x0046: 'WEEKDAY',
  0x0047: 'HOUR',
  0x0048: 'MINUTE',
  0x0049: 'SECOND',
  0x004A: 'NOW',
  0x004B: 'AREAS',
  0x004C: 'ROWS',
  0x004D: 'COLUMNS',
  0x004E: 'OFFSET',
  0x004F: 'ABSREF',
  0x0050: 'RELREF',
  0x0051: 'ARGUMENT',
  0x0052: 'SEARCH',
  0x0053: 'TRANSPOSE',
  0x0054: 'ERROR',
  0x0055: 'STEP',
  0x0056: 'TYPE',
  0x0057: 'ECHO',
  0x0058: 'SET.NAME',
  0x0059: 'CALLER',
  0x005A: 'DEREF',
  0x005B: 'WINDOWS',
  0x005C: 'SERIES',
  0x005D: 'DOCUMENTS',
  0x005E: 'ACTIVE.CELL',
  0x005F: 'SELECTION',
  0x0060: 'RESULT',
  0x0061: 'ATAN2',
  0x0062: 'ASIN',
  0x0063: 'ACOS',
  0x0064: 'CHOOSE',
  0x0065: 'HLOOKUP',
  0x0066: 'VLOOKUP',
  0x0067: 'LINKS',
  0x0068: 'INPUT',
  0x0069: 'ISREF',
  0x006A: 'GET.FORMULA',
  0x006B: 'GET.NAME',
  0x006C: 'SET.VALUE',
  0x006D: 'LOG',
  0x006E: 'EXEC',
  0x006F: 'CHAR',
  0x0070: 'LOWER',
  0x0071: 'UPPER',
  0x0072: 'PROPER',
  0x0073: 'LEFT',
  0x0074: 'RIGHT',
  0x0075: 'EXACT',
  0x0076: 'TRIM',
  0x0077: 'REPLACE',
  0x0078: 'SUBSTITUTE',
  0x0079: 'CODE',
  0x007A: 'NAMES',
  0x007B: 'DIRECTORY',
  0x007C: 'FIND',
  0x007D: 'CELL',
  0x007E: 'ISERR',
  0x007F: 'ISTEXT',
  0x0080: 'ISNUMBER',
  0x0081: 'ISBLANK',
  0x0082: 'T',
  0x0083: 'N',
  0x0084: 'FOPEN',
  0x0085: 'FCLOSE',
  0x0086: 'FSIZE',
  0x0087: 'FREADLN',
  0x0088: 'FREAD',
  0x0089: 'FWRITELN',
  0x008A: 'FWRITE',
  0x008B: 'FPOS',
  0x008C: 'DATEVALUE',
  0x008D: 'TIMEVALUE',
  0x008E: 'SLN',
  0x008F: 'SYD',
  0x0090: 'DDB',
  0x0091: 'GET.DEF',
  0x0092: 'REFTEXT',
  0x0093: 'TEXTREF',
  0x0094: 'INDIRECT',
  0x0095: 'REGISTER',
  0x0096: 'CALL',
  0x0097: 'ADD.BAR',
  0x0098: 'ADD.MENU',
  0x0099: 'ADD.COMMAND',
  0x009A: 'ENABLE.COMMAND',
  0x009B: 'CHECK.COMMAND',
  0x009C: 'RENAME.COMMAND',
  0x009D: 'SHOW.BAR',
  0x009E: 'DELETE.MENU',
  0x009F: 'DELETE.COMMAND',
  0x00A0: 'GET.CHART.ITEM',
  0x00A1: 'DIALOG.BOX',
  0x00A2: 'CLEAN',
  0x00A3: 'MDETERM',
  0x00A4: 'MINVERSE',
  0x00A5: 'MMULT',
  0x00A6: 'FILES',
  0x00A7: 'IPMT',
  0x00A8: 'PPMT',
  0x00A9: 'COUNTA',
  0x00AA: 'CANCEL.KEY',
  0x00AB: 'FOR',
  0x00AC: 'WHILE',
  0x00AD: 'BREAK',
  0x00AE: 'NEXT',
  0x00AF: 'INITIATE',
  0x00B0: 'REQUEST',
  0x00B1: 'POKE',
  0x00B2: 'EXECUTE',
  0x00B3: 'TERMINATE',
  0x00B4: 'RESTART',
  0x00B5: 'HELP',
  0x00B6: 'GET.BAR',
  0x00B7: 'PRODUCT',
  0x00B8: 'FACT',
  0x00B9: 'GET.CELL',
  0x00BA: 'GET.WORKSPACE',
  0x00BB: 'GET.WINDOW',
  0x00BC: 'GET.DOCUMENT',
  0x00BD: 'DPRODUCT',
  0x00BE: 'ISNONTEXT',
  0x00BF: 'GET.NOTE',
  0x00C0: 'NOTE',
  0x00C1: 'STDEVP',
  0x00C2: 'VARP',
  0x00C3: 'DSTDEVP',
  0x00C4: 'DVARP',
  0x00C5: 'TRUNC',
  0x00C6: 'ISLOGICAL',
  0x00C7: 'DCOUNTA',
  0x00C8: 'DELETE.BAR',
  0x00C9: 'UNREGISTER',
  0x00CC: 'USDOLLAR',
  0x00CD: 'FINDB',
  0x00CE: 'SEARCHB',
  0x00CF: 'REPLACEB',
  0x00D0: 'LEFTB',
  0x00D1: 'RIGHTB',
  0x00D2: 'MIDB',
  0x00D3: 'LENB',
  0x00D4: 'ROUNDUP',
  0x00D5: 'ROUNDDOWN',
  0x00D6: 'ASC',
  0x00D7: 'DBCS',
  0x00D8: 'RANK',
  0x00DB: 'ADDRESS',
  0x00DC: 'DAYS360',
  0x00DD: 'TODAY',
  0x00DE: 'VDB',
  0x00DF: 'ELSE',
  0x00E0: 'ELSE.IF',
  0x00E1: 'END.IF',
  0x00E2: 'FOR.CELL',
  0x00E3: 'MEDIAN',
  0x00E4: 'SUMPRODUCT',
  0x00E5: 'SINH',
  0x00E6: 'COSH',
  0x00E7: 'TANH',
  0x00E8: 'ASINH',
  0x00E9: 'ACOSH',
  0x00EA: 'ATANH',
  0x00EB: 'DGET',
  0x00EC: 'CREATE.OBJECT',
  0x00ED: 'VOLATILE',
  0x00EE: 'LAST.ERROR',
  0x00EF: 'CUSTOM.UNDO',
  0x00F0: 'CUSTOM.REPEAT',
  0x00F1: 'FORMULA.CONVERT',
  0x00F2: 'GET.LINK.INFO',
  0x00F3: 'TEXT.BOX',
  0x00F4: 'INFO',
  0x00F5: 'GROUP',
  0x00F6: 'GET.OBJECT',
  0x00F7: 'DB',
  0x00F8: 'PAUSE',
  0x00FB: 'RESUME',
  0x00FC: 'FREQUENCY',
  0x00FD: 'ADD.TOOLBAR',
  0x00FE: 'DELETE.TOOLBAR',
  0x00FF: 'User',
  0x0100: 'RESET.TOOLBAR',
  0x0101: 'EVALUATE',
  0x0102: 'GET.TOOLBAR',
  0x0103: 'GET.TOOL',
  0x0104: 'SPELLING.CHECK',
  0x0105: 'ERROR.TYPE',
  0x0106: 'APP.TITLE',
  0x0107: 'WINDOW.TITLE',
  0x0108: 'SAVE.TOOLBAR',
  0x0109: 'ENABLE.TOOL',
  0x010A: 'PRESS.TOOL',
  0x010B: 'REGISTER.ID',
  0x010C: 'GET.WORKBOOK',
  0x010D: 'AVEDEV',
  0x010E: 'BETADIST',
  0x010F: 'GAMMALN',
  0x0110: 'BETAINV',
  0x0111: 'BINOMDIST',
  0x0112: 'CHIDIST',
  0x0113: 'CHIINV',
  0x0114: 'COMBIN',
  0x0115: 'CONFIDENCE',
  0x0116: 'CRITBINOM',
  0x0117: 'EVEN',
  0x0118: 'EXPONDIST',
  0x0119: 'FDIST',
  0x011A: 'FINV',
  0x011B: 'FISHER',
  0x011C: 'FISHERINV',
  0x011D: 'FLOOR',
  0x011E: 'GAMMADIST',
  0x011F: 'GAMMAINV',
  0x0120: 'CEILING',
  0x0121: 'HYPGEOMDIST',
  0x0122: 'LOGNORMDIST',
  0x0123: 'LOGINV',
  0x0124: 'NEGBINOMDIST',
  0x0125: 'NORMDIST',
  0x0126: 'NORMSDIST',
  0x0127: 'NORMINV',
  0x0128: 'NORMSINV',
  0x0129: 'STANDARDIZE',
  0x012A: 'ODD',
  0x012B: 'PERMUT',
  0x012C: 'POISSON',
  0x012D: 'TDIST',
  0x012E: 'WEIBULL',
  0x012F: 'SUMXMY2',
  0x0130: 'SUMX2MY2',
  0x0131: 'SUMX2PY2',
  0x0132: 'CHITEST',
  0x0133: 'CORREL',
  0x0134: 'COVAR',
  0x0135: 'FORECAST',
  0x0136: 'FTEST',
  0x0137: 'INTERCEPT',
  0x0138: 'PEARSON',
  0x0139: 'RSQ',
  0x013A: 'STEYX',
  0x013B: 'SLOPE',
  0x013C: 'TTEST',
  0x013D: 'PROB',
  0x013E: 'DEVSQ',
  0x013F: 'GEOMEAN',
  0x0140: 'HARMEAN',
  0x0141: 'SUMSQ',
  0x0142: 'KURT',
  0x0143: 'SKEW',
  0x0144: 'ZTEST',
  0x0145: 'LARGE',
  0x0146: 'SMALL',
  0x0147: 'QUARTILE',
  0x0148: 'PERCENTILE',
  0x0149: 'PERCENTRANK',
  0x014A: 'MODE',
  0x014B: 'TRIMMEAN',
  0x014C: 'TINV',
  0x014E: 'MOVIE.COMMAND',
  0x014F: 'GET.MOVIE',
  0x0150: 'CONCATENATE',
  0x0151: 'POWER',
  0x0152: 'PIVOT.ADD.DATA',
  0x0153: 'GET.PIVOT.TABLE',
  0x0154: 'GET.PIVOT.FIELD',
  0x0155: 'GET.PIVOT.ITEM',
  0x0156: 'RADIANS',
  0x0157: 'DEGREES',
  0x0158: 'SUBTOTAL',
  0x0159: 'SUMIF',
  0x015A: 'COUNTIF',
  0x015B: 'COUNTBLANK',
  0x015C: 'SCENARIO.GET',
  0x015D: 'OPTIONS.LISTS.GET',
  0x015E: 'ISPMT',
  0x015F: 'DATEDIF',
  0x0160: 'DATESTRING',
  0x0161: 'NUMBERSTRING',
  0x0162: 'ROMAN',
  0x0163: 'OPEN.DIALOG',
  0x0164: 'SAVE.DIALOG',
  0x0165: 'VIEW.GET',
  0x0166: 'GETPIVOTDATA',
  0x0167: 'HYPERLINK',
  0x0168: 'PHONETIC',
  0x0169: 'AVERAGEA',
  0x016A: 'MAXA',
  0x016B: 'MINA',
  0x016C: 'STDEVPA',
  0x016D: 'VARPA',
  0x016E: 'STDEVA',
  0x016F: 'VARA',
  0x0170: 'BAHTTEXT',
  0x0171: 'THAIDAYOFWEEK',
  0x0172: 'THAIDIGIT',
  0x0173: 'THAIMONTHOFYEAR',
  0x0174: 'THAINUMSOUND',
  0x0175: 'THAINUMSTRING',
  0x0176: 'THAISTRINGLENGTH',
  0x0177: 'ISTHAIDIGIT',
  0x0178: 'ROUNDBAHTDOWN',
  0x0179: 'ROUNDBAHTUP',
  0x017A: 'THAIYEAR',
  0x017B: 'RTD',
  
  0x017C: 'CUBEVALUE',
  0x017D: 'CUBEMEMBER',
  0x017E: 'CUBEMEMBERPROPERTY',
  0x017F: 'CUBERANKEDMEMBER',
  0x0180: 'HEX2BIN',
  0x0181: 'HEX2DEC',
  0x0182: 'HEX2OCT',
  0x0183: 'DEC2BIN',
  0x0184: 'DEC2HEX',
  0x0185: 'DEC2OCT',
  0x0186: 'OCT2BIN',
  0x0187: 'OCT2HEX',
  0x0188: 'OCT2DEC',
  0x0189: 'BIN2DEC',
  0x018A: 'BIN2OCT',
  0x018B: 'BIN2HEX',
  0x018C: 'IMSUB',
  0x018D: 'IMDIV',
  0x018E: 'IMPOWER',
  0x018F: 'IMABS',
  0x0190: 'IMSQRT',
  0x0191: 'IMLN',
  0x0192: 'IMLOG2',
  0x0193: 'IMLOG10',
  0x0194: 'IMSIN',
  0x0195: 'IMCOS',
  0x0196: 'IMEXP',
  0x0197: 'IMARGUMENT',
  0x0198: 'IMCONJUGATE',
  0x0199: 'IMAGINARY',
  0x019A: 'IMREAL',
  0x019B: 'COMPLEX',
  0x019C: 'IMSUM',
  0x019D: 'IMPRODUCT',
  0x019E: 'SERIESSUM',
  0x019F: 'FACTDOUBLE',
  0x01A0: 'SQRTPI',
  0x01A1: 'QUOTIENT',
  0x01A2: 'DELTA',
  0x01A3: 'GESTEP',
  0x01A4: 'ISEVEN',
  0x01A5: 'ISODD',
  0x01A6: 'MROUND',
  0x01A7: 'ERF',
  0x01A8: 'ERFC',
  0x01A9: 'BESSELJ',
  0x01AA: 'BESSELK',
  0x01AB: 'BESSELY',
  0x01AC: 'BESSELI',
  0x01AD: 'XIRR',
  0x01AE: 'XNPV',
  0x01AF: 'PRICEMAT',
  0x01B0: 'YIELDMAT',
  0x01B1: 'INTRATE',
  0x01B2: 'RECEIVED',
  0x01B3: 'DISC',
  0x01B4: 'PRICEDISC',
  0x01B5: 'YIELDDISC',
  0x01B6: 'TBILLEQ',
  0x01B7: 'TBILLPRICE',
  0x01B8: 'TBILLYIELD',
  0x01B9: 'PRICE',
  0x01BA: 'YIELD',
  0x01BB: 'DOLLARDE',
  0x01BC: 'DOLLARFR',
  0x01BD: 'NOMINAL',
  0x01BE: 'EFFECT',
  0x01BF: 'CUMPRINC',
  0x01C0: 'CUMIPMT',
  0x01C1: 'EDATE',
  0x01C2: 'EOMONTH',
  0x01C3: 'YEARFRAC',
  0x01C4: 'COUPDAYBS',
  0x01C5: 'COUPDAYS',
  0x01C6: 'COUPDAYSNC',
  0x01C7: 'COUPNCD',
  0x01C8: 'COUPNUM',
  0x01C9: 'COUPPCD',
  0x01CA: 'DURATION',
  0x01CB: 'MDURATION',
  0x01CC: 'ODDLPRICE',
  0x01CD: 'ODDLYIELD',
  0x01CE: 'ODDFPRICE',
  0x01CF: 'ODDFYIELD',
  0x01D0: 'RANDBETWEEN',
  0x01D1: 'WEEKNUM',
  0x01D2: 'AMORDEGRC',
  0x01D3: 'AMORLINC',
  0x01D4: 'CONVERT',
  0x02D4: 'SHEETJS',
  0x01D5: 'ACCRINT',
  0x01D6: 'ACCRINTM',
  0x01D7: 'WORKDAY',
  0x01D8: 'NETWORKDAYS',
  0x01D9: 'GCD',
  0x01DA: 'MULTINOMIAL',
  0x01DB: 'LCM',
  0x01DC: 'FVSCHEDULE',
  0x01DD: 'CUBEKPIMEMBER',
  0x01DE: 'CUBESET',
  0x01DF: 'CUBESETCOUNT',
  0x01E0: 'IFERROR',
  0x01E1: 'COUNTIFS',
  0x01E2: 'SUMIFS',
  0x01E3: 'AVERAGEIF',
  0x01E4: 'AVERAGEIFS'
  };
  var FtabArgc = {
  0x0002: 1, /* ISNA */
  0x0003: 1, /* ISERROR */
  0x000A: 0, /* NA */
  0x000F: 1, /* SIN */
  0x0010: 1, /* COS */
  0x0011: 1, /* TAN */
  0x0012: 1, /* ATAN */
  0x0013: 0, /* PI */
  0x0014: 1, /* SQRT */
  0x0015: 1, /* EXP */
  0x0016: 1, /* LN */
  0x0017: 1, /* LOG10 */
  0x0018: 1, /* ABS */
  0x0019: 1, /* INT */
  0x001A: 1, /* SIGN */
  0x001B: 2, /* ROUND */
  0x001E: 2, /* REPT */
  0x001F: 3, /* MID */
  0x0020: 1, /* LEN */
  0x0021: 1, /* VALUE */
  0x0022: 0, /* TRUE */
  0x0023: 0, /* FALSE */
  0x0026: 1, /* NOT */
  0x0027: 2, /* MOD */
  0x0028: 3, /* DCOUNT */
  0x0029: 3, /* DSUM */
  0x002A: 3, /* DAVERAGE */
  0x002B: 3, /* DMIN */
  0x002C: 3, /* DMAX */
  0x002D: 3, /* DSTDEV */
  0x002F: 3, /* DVAR */
  0x0030: 2, /* TEXT */
  0x0035: 1, /* GOTO */
  0x003D: 3, /* MIRR */
  0x003F: 0, /* RAND */
  0x0041: 3, /* DATE */
  0x0042: 3, /* TIME */
  0x0043: 1, /* DAY */
  0x0044: 1, /* MONTH */
  0x0045: 1, /* YEAR */
  0x0046: 1, /* WEEKDAY */
  0x0047: 1, /* HOUR */
  0x0048: 1, /* MINUTE */
  0x0049: 1, /* SECOND */
  0x004A: 0, /* NOW */
  0x004B: 1, /* AREAS */
  0x004C: 1, /* ROWS */
  0x004D: 1, /* COLUMNS */
  0x004F: 2, /* ABSREF */
  0x0050: 2, /* RELREF */
  0x0053: 1, /* TRANSPOSE */
  0x0055: 0, /* STEP */
  0x0056: 1, /* TYPE */
  0x0059: 0, /* CALLER */
  0x005A: 1, /* DEREF */
  0x005E: 0, /* ACTIVE.CELL */
  0x005F: 0, /* SELECTION */
  0x0061: 2, /* ATAN2 */
  0x0062: 1, /* ASIN */
  0x0063: 1, /* ACOS */
  0x0065: 3, /* HLOOKUP */
  0x0066: 3, /* VLOOKUP */
  0x0069: 1, /* ISREF */
  0x006A: 1, /* GET.FORMULA */
  0x006C: 2, /* SET.VALUE */
  0x006F: 1, /* CHAR */
  0x0070: 1, /* LOWER */
  0x0071: 1, /* UPPER */
  0x0072: 1, /* PROPER */
  0x0075: 2, /* EXACT */
  0x0076: 1, /* TRIM */
  0x0077: 4, /* REPLACE */
  0x0079: 1, /* CODE */
  0x007E: 1, /* ISERR */
  0x007F: 1, /* ISTEXT */
  0x0080: 1, /* ISNUMBER */
  0x0081: 1, /* ISBLANK */
  0x0082: 1, /* T */
  0x0083: 1, /* N */
  0x0085: 1, /* FCLOSE */
  0x0086: 1, /* FSIZE */
  0x0087: 1, /* FREADLN */
  0x0088: 2, /* FREAD */
  0x0089: 2, /* FWRITELN */
  0x008A: 2, /* FWRITE */
  0x008C: 1, /* DATEVALUE */
  0x008D: 1, /* TIMEVALUE */
  0x008E: 3, /* SLN */
  0x008F: 4, /* SYD */
  0x0090: 4, /* DDB */
  0x00A1: 1, /* DIALOG.BOX */
  0x00A2: 1, /* CLEAN */
  0x00A3: 1, /* MDETERM */
  0x00A4: 1, /* MINVERSE */
  0x00A5: 2, /* MMULT */
  0x00AC: 1, /* WHILE */
  0x00AF: 2, /* INITIATE */
  0x00B0: 2, /* REQUEST */
  0x00B1: 3, /* POKE */
  0x00B2: 2, /* EXECUTE */
  0x00B3: 1, /* TERMINATE */
  0x00B8: 1, /* FACT */
  0x00BA: 1, /* GET.WORKSPACE */
  0x00BD: 3, /* DPRODUCT */
  0x00BE: 1, /* ISNONTEXT */
  0x00C3: 3, /* DSTDEVP */
  0x00C4: 3, /* DVARP */
  0x00C5: 1, /* TRUNC */
  0x00C6: 1, /* ISLOGICAL */
  0x00C7: 3, /* DCOUNTA */
  0x00C9: 1, /* UNREGISTER */
  0x00CF: 4, /* REPLACEB */
  0x00D2: 3, /* MIDB */
  0x00D3: 1, /* LENB */
  0x00D4: 2, /* ROUNDUP */
  0x00D5: 2, /* ROUNDDOWN */
  0x00D6: 1, /* ASC */
  0x00D7: 1, /* DBCS */
  0x00E1: 0, /* END.IF */
  0x00E5: 1, /* SINH */
  0x00E6: 1, /* COSH */
  0x00E7: 1, /* TANH */
  0x00E8: 1, /* ASINH */
  0x00E9: 1, /* ACOSH */
  0x00EA: 1, /* ATANH */
  0x00EB: 3, /* DGET */
  0x00F4: 1, /* INFO */
  0x00F7: 4, /* DB */
  0x00FC: 2, /* FREQUENCY */
  0x0101: 1, /* EVALUATE */
  0x0105: 1, /* ERROR.TYPE */
  0x010F: 1, /* GAMMALN */
  0x0111: 4, /* BINOMDIST */
  0x0112: 2, /* CHIDIST */
  0x0113: 2, /* CHIINV */
  0x0114: 2, /* COMBIN */
  0x0115: 3, /* CONFIDENCE */
  0x0116: 3, /* CRITBINOM */
  0x0117: 1, /* EVEN */
  0x0118: 3, /* EXPONDIST */
  0x0119: 3, /* FDIST */
  0x011A: 3, /* FINV */
  0x011B: 1, /* FISHER */
  0x011C: 1, /* FISHERINV */
  0x011D: 2, /* FLOOR */
  0x011E: 4, /* GAMMADIST */
  0x011F: 3, /* GAMMAINV */
  0x0120: 2, /* CEILING */
  0x0121: 4, /* HYPGEOMDIST */
  0x0122: 3, /* LOGNORMDIST */
  0x0123: 3, /* LOGINV */
  0x0124: 3, /* NEGBINOMDIST */
  0x0125: 4, /* NORMDIST */
  0x0126: 1, /* NORMSDIST */
  0x0127: 3, /* NORMINV */
  0x0128: 1, /* NORMSINV */
  0x0129: 3, /* STANDARDIZE */
  0x012A: 1, /* ODD */
  0x012B: 2, /* PERMUT */
  0x012C: 3, /* POISSON */
  0x012D: 3, /* TDIST */
  0x012E: 4, /* WEIBULL */
  0x012F: 2, /* SUMXMY2 */
  0x0130: 2, /* SUMX2MY2 */
  0x0131: 2, /* SUMX2PY2 */
  0x0132: 2, /* CHITEST */
  0x0133: 2, /* CORREL */
  0x0134: 2, /* COVAR */
  0x0135: 3, /* FORECAST */
  0x0136: 2, /* FTEST */
  0x0137: 2, /* INTERCEPT */
  0x0138: 2, /* PEARSON */
  0x0139: 2, /* RSQ */
  0x013A: 2, /* STEYX */
  0x013B: 2, /* SLOPE */
  0x013C: 4, /* TTEST */
  0x0145: 2, /* LARGE */
  0x0146: 2, /* SMALL */
  0x0147: 2, /* QUARTILE */
  0x0148: 2, /* PERCENTILE */
  0x014B: 2, /* TRIMMEAN */
  0x014C: 2, /* TINV */
  0x0151: 2, /* POWER */
  0x0156: 1, /* RADIANS */
  0x0157: 1, /* DEGREES */
  0x015A: 2, /* COUNTIF */
  0x015B: 1, /* COUNTBLANK */
  0x015E: 4, /* ISPMT */
  0x015F: 3, /* DATEDIF */
  0x0160: 1, /* DATESTRING */
  0x0161: 2, /* NUMBERSTRING */
  0x0168: 1, /* PHONETIC */
  0x0170: 1, /* BAHTTEXT */
  0x0171: 1, /* THAIDAYOFWEEK */
  0x0172: 1, /* THAIDIGIT */
  0x0173: 1, /* THAIMONTHOFYEAR */
  0x0174: 1, /* THAINUMSOUND */
  0x0175: 1, /* THAINUMSTRING */
  0x0176: 1, /* THAISTRINGLENGTH */
  0x0177: 1, /* ISTHAIDIGIT */
  0x0178: 1, /* ROUNDBAHTDOWN */
  0x0179: 1, /* ROUNDBAHTUP */
  0x017A: 1, /* THAIYEAR */
  0x017E: 3, /* CUBEMEMBERPROPERTY */
  0x0181: 1, /* HEX2DEC */
  0x0188: 1, /* OCT2DEC */
  0x0189: 1, /* BIN2DEC */
  0x018C: 2, /* IMSUB */
  0x018D: 2, /* IMDIV */
  0x018E: 2, /* IMPOWER */
  0x018F: 1, /* IMABS */
  0x0190: 1, /* IMSQRT */
  0x0191: 1, /* IMLN */
  0x0192: 1, /* IMLOG2 */
  0x0193: 1, /* IMLOG10 */
  0x0194: 1, /* IMSIN */
  0x0195: 1, /* IMCOS */
  0x0196: 1, /* IMEXP */
  0x0197: 1, /* IMARGUMENT */
  0x0198: 1, /* IMCONJUGATE */
  0x0199: 1, /* IMAGINARY */
  0x019A: 1, /* IMREAL */
  0x019E: 4, /* SERIESSUM */
  0x019F: 1, /* FACTDOUBLE */
  0x01A0: 1, /* SQRTPI */
  0x01A1: 2, /* QUOTIENT */
  0x01A4: 1, /* ISEVEN */
  0x01A5: 1, /* ISODD */
  0x01A6: 2, /* MROUND */
  0x01A8: 1, /* ERFC */
  0x01A9: 2, /* BESSELJ */
  0x01AA: 2, /* BESSELK */
  0x01AB: 2, /* BESSELY */
  0x01AC: 2, /* BESSELI */
  0x01AE: 3, /* XNPV */
  0x01B6: 3, /* TBILLEQ */
  0x01B7: 3, /* TBILLPRICE */
  0x01B8: 3, /* TBILLYIELD */
  0x01BB: 2, /* DOLLARDE */
  0x01BC: 2, /* DOLLARFR */
  0x01BD: 2, /* NOMINAL */
  0x01BE: 2, /* EFFECT */
  0x01BF: 6, /* CUMPRINC */
  0x01C0: 6, /* CUMIPMT */
  0x01C1: 2, /* EDATE */
  0x01C2: 2, /* EOMONTH */
  0x01D0: 2, /* RANDBETWEEN */
  0x01D4: 3, /* CONVERT */
  0x01DC: 2, /* FVSCHEDULE */
  0x01DF: 1, /* CUBESETCOUNT */
  0x01E0: 2, /* IFERROR */
  0xFFFF: 0
  };
  /* [MS-XLSX] 2.2.3 Functions */
  /* [MS-XLSB] 2.5.97.10 Ftab */
  var XLSXFutureFunctions = {
  	"_xlfn.ACOT": "ACOT",
  	"_xlfn.ACOTH": "ACOTH",
  	"_xlfn.AGGREGATE": "AGGREGATE",
  	"_xlfn.ARABIC": "ARABIC",
  	"_xlfn.AVERAGEIF": "AVERAGEIF",
  	"_xlfn.AVERAGEIFS": "AVERAGEIFS",
  	"_xlfn.BASE": "BASE",
  	"_xlfn.BETA.DIST": "BETA.DIST",
  	"_xlfn.BETA.INV": "BETA.INV",
  	"_xlfn.BINOM.DIST": "BINOM.DIST",
  	"_xlfn.BINOM.DIST.RANGE": "BINOM.DIST.RANGE",
  	"_xlfn.BINOM.INV": "BINOM.INV",
  	"_xlfn.BITAND": "BITAND",
  	"_xlfn.BITLSHIFT": "BITLSHIFT",
  	"_xlfn.BITOR": "BITOR",
  	"_xlfn.BITRSHIFT": "BITRSHIFT",
  	"_xlfn.BITXOR": "BITXOR",
  	"_xlfn.CEILING.MATH": "CEILING.MATH",
  	"_xlfn.CEILING.PRECISE": "CEILING.PRECISE",
  	"_xlfn.CHISQ.DIST": "CHISQ.DIST",
  	"_xlfn.CHISQ.DIST.RT": "CHISQ.DIST.RT",
  	"_xlfn.CHISQ.INV": "CHISQ.INV",
  	"_xlfn.CHISQ.INV.RT": "CHISQ.INV.RT",
  	"_xlfn.CHISQ.TEST": "CHISQ.TEST",
  	"_xlfn.COMBINA": "COMBINA",
  	"_xlfn.CONCAT": "CONCAT",
  	"_xlfn.CONFIDENCE.NORM": "CONFIDENCE.NORM",
  	"_xlfn.CONFIDENCE.T": "CONFIDENCE.T",
  	"_xlfn.COT": "COT",
  	"_xlfn.COTH": "COTH",
  	"_xlfn.COUNTIFS": "COUNTIFS",
  	"_xlfn.COVARIANCE.P": "COVARIANCE.P",
  	"_xlfn.COVARIANCE.S": "COVARIANCE.S",
  	"_xlfn.CSC": "CSC",
  	"_xlfn.CSCH": "CSCH",
  	"_xlfn.DAYS": "DAYS",
  	"_xlfn.DECIMAL": "DECIMAL",
  	"_xlfn.ECMA.CEILING": "ECMA.CEILING",
  	"_xlfn.ERF.PRECISE": "ERF.PRECISE",
  	"_xlfn.ERFC.PRECISE": "ERFC.PRECISE",
  	"_xlfn.EXPON.DIST": "EXPON.DIST",
  	"_xlfn.F.DIST": "F.DIST",
  	"_xlfn.F.DIST.RT": "F.DIST.RT",
  	"_xlfn.F.INV": "F.INV",
  	"_xlfn.F.INV.RT": "F.INV.RT",
  	"_xlfn.F.TEST": "F.TEST",
  	"_xlfn.FILTERXML": "FILTERXML",
  	"_xlfn.FLOOR.MATH": "FLOOR.MATH",
  	"_xlfn.FLOOR.PRECISE": "FLOOR.PRECISE",
  	"_xlfn.FORECAST.ETS": "FORECAST.ETS",
  	"_xlfn.FORECAST.ETS.CONFINT": "FORECAST.ETS.CONFINT",
  	"_xlfn.FORECAST.ETS.SEASONALITY": "FORECAST.ETS.SEASONALITY",
  	"_xlfn.FORECAST.ETS.STAT": "FORECAST.ETS.STAT",
  	"_xlfn.FORECAST.LINEAR": "FORECAST.LINEAR",
  	"_xlfn.FORMULATEXT": "FORMULATEXT",
  	"_xlfn.GAMMA": "GAMMA",
  	"_xlfn.GAMMA.DIST": "GAMMA.DIST",
  	"_xlfn.GAMMA.INV": "GAMMA.INV",
  	"_xlfn.GAMMALN.PRECISE": "GAMMALN.PRECISE",
  	"_xlfn.GAUSS": "GAUSS",
  	"_xlfn.HYPGEOM.DIST": "HYPGEOM.DIST",
  	"_xlfn.IFERROR": "IFERROR",
  	"_xlfn.IFNA": "IFNA",
  	"_xlfn.IFS": "IFS",
  	"_xlfn.IMCOSH": "IMCOSH",
  	"_xlfn.IMCOT": "IMCOT",
  	"_xlfn.IMCSC": "IMCSC",
  	"_xlfn.IMCSCH": "IMCSCH",
  	"_xlfn.IMSEC": "IMSEC",
  	"_xlfn.IMSECH": "IMSECH",
  	"_xlfn.IMSINH": "IMSINH",
  	"_xlfn.IMTAN": "IMTAN",
  	"_xlfn.ISFORMULA": "ISFORMULA",
  	"_xlfn.ISO.CEILING": "ISO.CEILING",
  	"_xlfn.ISOWEEKNUM": "ISOWEEKNUM",
  	"_xlfn.LOGNORM.DIST": "LOGNORM.DIST",
  	"_xlfn.LOGNORM.INV": "LOGNORM.INV",
  	"_xlfn.MAXIFS": "MAXIFS",
  	"_xlfn.MINIFS": "MINIFS",
  	"_xlfn.MODE.MULT": "MODE.MULT",
  	"_xlfn.MODE.SNGL": "MODE.SNGL",
  	"_xlfn.MUNIT": "MUNIT",
  	"_xlfn.NEGBINOM.DIST": "NEGBINOM.DIST",
  	"_xlfn.NETWORKDAYS.INTL": "NETWORKDAYS.INTL",
  	"_xlfn.NIGBINOM": "NIGBINOM",
  	"_xlfn.NORM.DIST": "NORM.DIST",
  	"_xlfn.NORM.INV": "NORM.INV",
  	"_xlfn.NORM.S.DIST": "NORM.S.DIST",
  	"_xlfn.NORM.S.INV": "NORM.S.INV",
  	"_xlfn.NUMBERVALUE": "NUMBERVALUE",
  	"_xlfn.PDURATION": "PDURATION",
  	"_xlfn.PERCENTILE.EXC": "PERCENTILE.EXC",
  	"_xlfn.PERCENTILE.INC": "PERCENTILE.INC",
  	"_xlfn.PERCENTRANK.EXC": "PERCENTRANK.EXC",
  	"_xlfn.PERCENTRANK.INC": "PERCENTRANK.INC",
  	"_xlfn.PERMUTATIONA": "PERMUTATIONA",
  	"_xlfn.PHI": "PHI",
  	"_xlfn.POISSON.DIST": "POISSON.DIST",
  	"_xlfn.QUARTILE.EXC": "QUARTILE.EXC",
  	"_xlfn.QUARTILE.INC": "QUARTILE.INC",
  	"_xlfn.QUERYSTRING": "QUERYSTRING",
  	"_xlfn.RANK.AVG": "RANK.AVG",
  	"_xlfn.RANK.EQ": "RANK.EQ",
  	"_xlfn.RRI": "RRI",
  	"_xlfn.SEC": "SEC",
  	"_xlfn.SECH": "SECH",
  	"_xlfn.SHEET": "SHEET",
  	"_xlfn.SHEETS": "SHEETS",
  	"_xlfn.SKEW.P": "SKEW.P",
  	"_xlfn.STDEV.P": "STDEV.P",
  	"_xlfn.STDEV.S": "STDEV.S",
  	"_xlfn.SUMIFS": "SUMIFS",
  	"_xlfn.SWITCH": "SWITCH",
  	"_xlfn.T.DIST": "T.DIST",
  	"_xlfn.T.DIST.2T": "T.DIST.2T",
  	"_xlfn.T.DIST.RT": "T.DIST.RT",
  	"_xlfn.T.INV": "T.INV",
  	"_xlfn.T.INV.2T": "T.INV.2T",
  	"_xlfn.T.TEST": "T.TEST",
  	"_xlfn.TEXTJOIN": "TEXTJOIN",
  	"_xlfn.UNICHAR": "UNICHAR",
  	"_xlfn.UNICODE": "UNICODE",
  	"_xlfn.VAR.P": "VAR.P",
  	"_xlfn.VAR.S": "VAR.S",
  	"_xlfn.WEBSERVICE": "WEBSERVICE",
  	"_xlfn.WEIBULL.DIST": "WEIBULL.DIST",
  	"_xlfn.WORKDAY.INTL": "WORKDAY.INTL",
  	"_xlfn.XOR": "XOR",
  	"_xlfn.Z.TEST": "Z.TEST"
  };
  
  /* Part 3 TODO: actually parse formulae */
  function ods_to_csf_formula(f) {
  	if(f.slice(0,3) == "of:") f = f.slice(3);
  	/* 5.2 Basic Expressions */
  	if(f.charCodeAt(0) == 61) {
  		f = f.slice(1);
  		if(f.charCodeAt(0) == 61) f = f.slice(1);
  	}
  	f = f.replace(/COM\.MICROSOFT\./g, "");
  	/* Part 3 Section 5.8 References */
  	f = f.replace(/\[((?:\.[A-Z]+[0-9]+)(?::\.[A-Z]+[0-9]+)?)\]/g, function($$, $1) { return $1.replace(/\./g,""); });
  	/* TODO: something other than this */
  	f = f.replace(/\[.(#[A-Z]*[?!])\]/g, "$1");
  	return f.replace(/[;~]/g,",").replace(/\|/g,";");
  }
  
  function csf_to_ods_formula(f) {
  	var o = "of:=" + f.replace(crefregex, "$1[.$2$3$4$5]").replace(/\]:\[/g,":");
  	/* TODO: something other than this */
  	return o.replace(/;/g, "|").replace(/,/g,";");
  }
  
  function ods_to_csf_3D(r) {
  	var a = r.split(":");
  	var s = a[0].split(".")[0];
  	return [s, a[0].split(".")[1] + (a.length > 1 ? (":" + (a[1].split(".")[1] || a[1].split(".")[0])) : "")];
  }
  
  function csf_to_ods_3D(r) {
  	return r.replace(/\./,"!");
  }
  
  var strs = {}; // shared strings
  var _ssfopts = {}; // spreadsheet formatting options
  
  RELS.WS = [
  	"http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
  	"http://purl.oclc.org/ooxml/officeDocument/relationships/worksheet"
  ];
  
  /*global Map */
  var browser_has_Map = typeof Map !== 'undefined';
  
  function get_sst_id(sst, str, rev) {
  	var i = 0, len = sst.length;
  	if(rev) {
  		if(browser_has_Map ? rev.has(str) : rev.hasOwnProperty(str)) {
  			var revarr = browser_has_Map ? rev.get(str) : rev[str];
  			for(; i < revarr.length; ++i) {
  				if(sst[revarr[i]].t === str) { sst.Count ++; return revarr[i]; }
  			}
  		}
  	} else for(; i < len; ++i) {
  		if(sst[i].t === str) { sst.Count ++; return i; }
  	}
  	sst[len] = ({t:str}); sst.Count ++; sst.Unique ++;
  	if(rev) {
  		if(browser_has_Map) {
  			if(!rev.has(str)) rev.set(str, []);
  			rev.get(str).push(len);
  		} else {
  			if(!rev.hasOwnProperty(str)) rev[str] = [];
  			rev[str].push(len);
  		}
  	}
  	return len;
  }
  
  function col_obj_w(C, col) {
  	var p = ({min:C+1,max:C+1});
  	/* wch (chars), wpx (pixels) */
  	var wch = -1;
  	if(col.MDW) MDW = col.MDW;
  	if(col.width != null) p.customWidth = 1;
  	else if(col.wpx != null) wch = px2char(col.wpx);
  	else if(col.wch != null) wch = col.wch;
  	if(wch > -1) { p.width = char2width(wch); p.customWidth = 1; }
  	else if(col.width != null) p.width = col.width;
  	if(col.hidden) p.hidden = true;
  	return p;
  }
  
  function default_margins(margins, mode) {
  	if(!margins) return;
  	var defs = [0.7, 0.7, 0.75, 0.75, 0.3, 0.3];
  	if(mode == 'xlml') defs = [1, 1, 1, 1, 0.5, 0.5];
  	if(margins.left   == null) margins.left   = defs[0];
  	if(margins.right  == null) margins.right  = defs[1];
  	if(margins.top    == null) margins.top    = defs[2];
  	if(margins.bottom == null) margins.bottom = defs[3];
  	if(margins.header == null) margins.header = defs[4];
  	if(margins.footer == null) margins.footer = defs[5];
  }
  
  function get_cell_style(styles, cell, opts) {
  	var z = opts.revssf[cell.z != null ? cell.z : "General"];
  	var i = 0x3c, len = styles.length;
  	if(z == null && opts.ssf) {
  		for(; i < 0x188; ++i) if(opts.ssf[i] == null) {
  			SSF.load(cell.z, i);
  			// $FlowIgnore
  			opts.ssf[i] = cell.z;
  			opts.revssf[cell.z] = z = i;
  			break;
  		}
  	}
  	for(i = 0; i != len; ++i) if(styles[i].numFmtId === z) return i;
  	styles[len] = {
  		numFmtId:z,
  		fontId:0,
  		fillId:0,
  		borderId:0,
  		xfId:0,
  		applyNumberFormat:1
  	};
  	return len;
  }
  
  function safe_format(p, fmtid, fillid, opts, themes, styles) {
  	if(p.t === 'z') return;
  	if(p.t === 'd' && typeof p.v === 'string') p.v = parseDate(p.v);
  	try {
  		if(opts.cellNF) p.z = SSF._table[fmtid];
  	} catch(e) { if(opts.WTF) throw e; }
  	if(!opts || opts.cellText !== false) try {
  		if(SSF._table[fmtid] == null) SSF.load(SSFImplicit[fmtid] || "General", fmtid);
  		if(p.t === 'e') p.w = p.w || BErr[p.v];
  		else if(fmtid === 0) {
  			if(p.t === 'n') {
  				if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
  				else p.w = SSF._general_num(p.v);
  			}
  			else if(p.t === 'd') {
  				var dd = datenum(p.v);
  				if((dd|0) === dd) p.w = SSF._general_int(dd);
  				else p.w = SSF._general_num(dd);
  			}
  			else if(p.v === undefined) return "";
  			else p.w = SSF._general(p.v,_ssfopts);
  		}
  		else if(p.t === 'd') p.w = SSF.format(fmtid,datenum(p.v),_ssfopts);
  		else p.w = SSF.format(fmtid,p.v,_ssfopts);
  	} catch(e) { if(opts.WTF) throw e; }
  	if(!opts.cellStyles) return;
  	if(fillid != null) try {
  		p.s = styles.Fills[fillid];
  		if (p.s.fgColor && p.s.fgColor.theme && !p.s.fgColor.rgb) {
  			p.s.fgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.fgColor.theme].rgb, p.s.fgColor.tint || 0);
  			if(opts.WTF) p.s.fgColor.raw_rgb = themes.themeElements.clrScheme[p.s.fgColor.theme].rgb;
  		}
  		if (p.s.bgColor && p.s.bgColor.theme) {
  			p.s.bgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.bgColor.theme].rgb, p.s.bgColor.tint || 0);
  			if(opts.WTF) p.s.bgColor.raw_rgb = themes.themeElements.clrScheme[p.s.bgColor.theme].rgb;
  		}
  	} catch(e) { if(opts.WTF && styles.Fills) throw e; }
  }
  
  function check_ws(ws, sname, i) {
  	if(ws && ws['!ref']) {
  		var range = safe_decode_range(ws['!ref']);
  		if(range.e.c < range.s.c || range.e.r < range.s.r) throw new Error("Bad range (" + i + "): " + ws['!ref']);
  	}
  }
  function parse_ws_xml_dim(ws, s) {
  	var d = safe_decode_range(s);
  	if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.s.c>=0) ws["!ref"] = encode_range(d);
  }
  var mergecregex = /<(?:\w:)?mergeCell ref="[A-Z0-9:]+"\s*[\/]?>/g;
  var sheetdataregex = /<(?:\w+:)?sheetData>([\s\S]*)<\/(?:\w+:)?sheetData>/;
  var hlinkregex = /<(?:\w:)?hyperlink [^>]*>/mg;
  var dimregex = /"(\w*:\w*)"/;
  var colregex = /<(?:\w:)?col[^>]*[\/]?>/g;
  var afregex = /<(?:\w:)?autoFilter[^>]*([\/]|>([\s\S]*)<\/(?:\w:)?autoFilter)>/g;
  var marginregex= /<(?:\w:)?pageMargins[^>]*\/>/g;
  var sheetprregex = /<(?:\w:)?sheetPr(?:[^>a-z][^>]*)?\/>/;
  var svsregex = /<(?:\w:)?sheetViews[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetViews)>/;
  /* 18.3 Worksheets */
  function parse_ws_xml(data, opts, idx, rels, wb, themes, styles) {
  	if(!data) return data;
  	if(DENSE != null && opts.dense == null) opts.dense = DENSE;
  
  	/* 18.3.1.99 worksheet CT_Worksheet */
  	var s = opts.dense ? ([]) : ({});
  	var refguess = ({s: {r:2000000, c:2000000}, e: {r:0, c:0} });
  
  	var data1 = "", data2 = "";
  	var mtch = data.match(sheetdataregex);
  	if(mtch) {
  		data1 = data.slice(0, mtch.index);
  		data2 = data.slice(mtch.index + mtch[0].length);
  	} else data1 = data2 = data;
  
  	/* 18.3.1.82 sheetPr CT_SheetPr */
  	var sheetPr = data1.match(sheetprregex);
  	if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);
  
  	/* 18.3.1.35 dimension CT_SheetDimension */
  	// $FlowIgnore
  	var ridx = (data1.match(/<(?:\w*:)?dimension/)||{index:-1}).index;
  	if(ridx > 0) {
  		var ref = data1.slice(ridx,ridx+50).match(dimregex);
  		if(ref) parse_ws_xml_dim(s, ref[1]);
  	}
  
  	/* 18.3.1.88 sheetViews CT_SheetViews */
  	var svs = data1.match(svsregex);
  	if(svs && svs[1]) parse_ws_xml_sheetviews(svs[1], wb);
  
  	/* 18.3.1.17 cols CT_Cols */
  	var columns = [];
  	if(opts.cellStyles) {
  		/* 18.3.1.13 col CT_Col */
  		var cols = data1.match(colregex);
  		if(cols) parse_ws_xml_cols(columns, cols);
  	}
  
  	/* 18.3.1.80 sheetData CT_SheetData ? */
  	if(mtch) parse_ws_xml_data(mtch[1], s, opts, refguess, themes, styles);
  
  	/* 18.3.1.2  autoFilter CT_AutoFilter */
  	var afilter = data2.match(afregex);
  	if(afilter) s['!autofilter'] = parse_ws_xml_autofilter(afilter[0]);
  
  	/* 18.3.1.55 mergeCells CT_MergeCells */
  	var merges = [];
  	var _merge = data2.match(mergecregex);
  	if(_merge) for(ridx = 0; ridx != _merge.length; ++ridx)
  		merges[ridx] = safe_decode_range(_merge[ridx].slice(_merge[ridx].indexOf("\"")+1));
  
  	/* 18.3.1.48 hyperlinks CT_Hyperlinks */
  	var hlink = data2.match(hlinkregex);
  	if(hlink) parse_ws_xml_hlinks(s, hlink, rels);
  
  	/* 18.3.1.62 pageMargins CT_PageMargins */
  	var margins = data2.match(marginregex);
  	if(margins) s['!margins'] = parse_ws_xml_margins(parsexmltag(margins[0]));
  
  	if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
  	if(opts.sheetRows > 0 && s["!ref"]) {
  		var tmpref = safe_decode_range(s["!ref"]);
  		if(opts.sheetRows <= +tmpref.e.r) {
  			tmpref.e.r = opts.sheetRows - 1;
  			if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
  			if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
  			if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
  			if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
  			s["!fullref"] = s["!ref"];
  			s["!ref"] = encode_range(tmpref);
  		}
  	}
  	if(columns.length > 0) s["!cols"] = columns;
  	if(merges.length > 0) s["!merges"] = merges;
  	return s;
  }
  
  function write_ws_xml_merges(merges) {
  	if(merges.length === 0) return "";
  	var o = '<mergeCells count="' + merges.length + '">';
  	for(var i = 0; i != merges.length; ++i) o += '<mergeCell ref="' + encode_range(merges[i]) + '"/>';
  	return o + '</mergeCells>';
  }
  
  /* 18.3.1.82-3 sheetPr CT_ChartsheetPr / CT_SheetPr */
  function parse_ws_xml_sheetpr(sheetPr, s, wb, idx) {
  	var data = parsexmltag(sheetPr);
  	if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
  	if(data.codeName) wb.Sheets[idx].CodeName = data.codeName;
  }
  
  /* 18.3.1.85 sheetProtection CT_SheetProtection */
  function write_ws_xml_protection(sp) {
  	// algorithmName, hashValue, saltValue, spinCountpassword
  	var o = ({sheet:1});
  	var deffalse = ["objects", "scenarios", "selectLockedCells", "selectUnlockedCells"];
  	var deftrue = [
  		"formatColumns", "formatRows", "formatCells",
  		"insertColumns", "insertRows", "insertHyperlinks",
  		"deleteColumns", "deleteRows",
  		"sort", "autoFilter", "pivotTables"
  	];
  	deffalse.forEach(function(n) { if(sp[n] != null && sp[n]) o[n] = "1"; });
  	deftrue.forEach(function(n) { if(sp[n] != null && !sp[n]) o[n] = "0"; });
  	/* TODO: algorithm */
  	if(sp.password) o.password = crypto_CreatePasswordVerifier_Method1(sp.password).toString(16).toUpperCase();
  	return writextag('sheetProtection', null, o);
  }
  
  function parse_ws_xml_hlinks(s, data, rels) {
  	var dense = Array.isArray(s);
  	for(var i = 0; i != data.length; ++i) {
  		var val = parsexmltag(utf8read(data[i]), true);
  		if(!val.ref) return;
  		var rel = ((rels || {})['!id']||[])[val.id];
  		if(rel) {
  			val.Target = rel.Target;
  			if(val.location) val.Target += "#"+val.location;
  		} else {
  			val.Target = "#" + val.location;
  			rel = {Target: val.Target, TargetMode: 'Internal'};
  		}
  		val.Rel = rel;
  		if(val.tooltip) { val.Tooltip = val.tooltip; delete val.tooltip; }
  		var rng = safe_decode_range(val.ref);
  		for(var R=rng.s.r;R<=rng.e.r;++R) for(var C=rng.s.c;C<=rng.e.c;++C) {
  			var addr = encode_cell({c:C,r:R});
  			if(dense) {
  				if(!s[R]) s[R] = [];
  				if(!s[R][C]) s[R][C] = {t:"z",v:undefined};
  				s[R][C].l = val;
  			} else {
  				if(!s[addr]) s[addr] = {t:"z",v:undefined};
  				s[addr].l = val;
  			}
  		}
  	}
  }
  
  function parse_ws_xml_margins(margin) {
  	var o = {};
  	["left", "right", "top", "bottom", "header", "footer"].forEach(function(k) {
  		if(margin[k]) o[k] = parseFloat(margin[k]);
  	});
  	return o;
  }
  function write_ws_xml_margins(margin) {
  	default_margins(margin);
  	return writextag('pageMargins', null, margin);
  }
  
  function parse_ws_xml_cols(columns, cols) {
  	var seencol = false;
  	for(var coli = 0; coli != cols.length; ++coli) {
  		var coll = parsexmltag(cols[coli], true);
  		if(coll.hidden) coll.hidden = parsexmlbool(coll.hidden);
  		var colm=parseInt(coll.min, 10)-1, colM=parseInt(coll.max,10)-1;
  		delete coll.min; delete coll.max; coll.width = +coll.width;
  		if(!seencol && coll.width) { seencol = true; find_mdw_colw(coll.width); }
  		process_col(coll);
  		while(colm <= colM) columns[colm++] = dup(coll);
  	}
  }
  
  function write_ws_xml_cols(ws, cols) {
  	var o = ["<cols>"], col;
  	for(var i = 0; i != cols.length; ++i) {
  		if(!(col = cols[i])) continue;
  		o[o.length] = (writextag('col', null, col_obj_w(i, col)));
  	}
  	o[o.length] = "</cols>";
  	return o.join("");
  }
  
  function parse_ws_xml_autofilter(data) {
  	var o = { ref: (data.match(/ref="([^"]*)"/)||[])[1]};
  	return o;
  }
  function write_ws_xml_autofilter(data) {
  	return writextag("autoFilter", null, {ref:data.ref});
  }
  
  /* 18.3.1.88 sheetViews CT_SheetViews */
  /* 18.3.1.87 sheetView CT_SheetView */
  var sviewregex = /<(?:\w:)?sheetView(?:[^>a-z][^>]*)?\/>/;
  function parse_ws_xml_sheetviews(data, wb) {
  	(data.match(sviewregex)||[]).forEach(function(r) {
  		var tag = parsexmltag(r);
  		if(parsexmlbool(tag.rightToLeft)) {
  			if(!wb.Views) wb.Views = [{}];
  			if(!wb.Views[0]) wb.Views[0] = {};
  			wb.Views[0].RTL = true;
  		}
  	});
  }
  function write_ws_xml_sheetviews(ws, opts, idx, wb) {
  	var sview = {workbookViewId:"0"};
  	// $FlowIgnore
  	if( (((wb||{}).Workbook||{}).Views||[])[0] ) sview.rightToLeft = wb.Workbook.Views[0].RTL ? "1" : "0";
  	return writextag("sheetViews", writextag("sheetView", null, sview), {});
  }
  
  function write_ws_xml_cell(cell, ref, ws, opts) {
  	if(cell.v === undefined && cell.f === undefined || cell.t === 'z') return "";
  	var vv = "";
  	var oldt = cell.t, oldv = cell.v;
  	switch(cell.t) {
  		case 'b': vv = cell.v ? "1" : "0"; break;
  		case 'n': vv = ''+cell.v; break;
  		case 'e': vv = BErr[cell.v]; break;
  		case 'd':
  			if(opts.cellDates) vv = parseDate(cell.v, -1).toISOString();
  			else {
  				cell = dup(cell);
  				cell.t = 'n';
  				vv = ''+(cell.v = datenum(parseDate(cell.v)));
  			}
  			if(typeof cell.z === 'undefined') cell.z = SSF._table[14];
  			break;
  		default: vv = cell.v; break;
  	}
  	var v = writetag('v', escapexml(vv)), o = ({r:ref});
  	/* TODO: cell style */
  	var os = get_cell_style(opts.cellXfs, cell, opts);
  	if(os !== 0) o.s = os;
  	switch(cell.t) {
  		case 'n': break;
  		case 'd': o.t = "d"; break;
  		case 'b': o.t = "b"; break;
  		case 'e': o.t = "e"; break;
  		default: if(cell.v == null) { delete cell.t; break; }
  			if(opts.bookSST) {
  				v = writetag('v', ''+get_sst_id(opts.Strings, cell.v, opts.revStrings));
  				o.t = "s"; break;
  			}
  			o.t = "str"; break;
  	}
  	if(cell.t != oldt) { cell.t = oldt; cell.v = oldv; }
  	if(cell.f) {
  		var ff = cell.F && cell.F.slice(0, ref.length) == ref ? {t:"array", ref:cell.F} : null;
  		v = writextag('f', escapexml(cell.f), ff) + (cell.v != null ? v : "");
  	}
  	if(cell.l) ws['!links'].push([ref, cell.l]);
  	if(cell.c) ws['!comments'].push([ref, cell.c]);
  	return writextag('c', v, o);
  }
  
  var parse_ws_xml_data = (function() {
  	var cellregex = /<(?:\w+:)?c[ >]/, rowregex = /<\/(?:\w+:)?row>/;
  	var rregex = /r=["']([^"']*)["']/, isregex = /<(?:\w+:)?is>([\S\s]*?)<\/(?:\w+:)?is>/;
  	var refregex = /ref=["']([^"']*)["']/;
  	var match_v = matchtag("v"), match_f = matchtag("f");
  
  return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
  	var ri = 0, x = "", cells = [], cref = [], idx=0, i=0, cc=0, d="", p;
  	var tag, tagr = 0, tagc = 0;
  	var sstr, ftag;
  	var fmtid = 0, fillid = 0;
  	var do_format = Array.isArray(styles.CellXf), cf;
  	var arrayf = [];
  	var sharedf = [];
  	var dense = Array.isArray(s);
  	var rows = [], rowobj = {}, rowrite = false;
  	for(var marr = sdata.split(rowregex), mt = 0, marrlen = marr.length; mt != marrlen; ++mt) {
  		x = marr[mt].trim();
  		var xlen = x.length;
  		if(xlen === 0) continue;
  
  		/* 18.3.1.73 row CT_Row */
  		for(ri = 0; ri < xlen; ++ri) if(x.charCodeAt(ri) === 62) break; ++ri;
  		tag = parsexmltag(x.slice(0,ri), true);
  		tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
  		if(opts.sheetRows && opts.sheetRows < tagr) continue;
  		if(guess.s.r > tagr - 1) guess.s.r = tagr - 1;
  		if(guess.e.r < tagr - 1) guess.e.r = tagr - 1;
  
  		if(opts && opts.cellStyles) {
  			rowobj = {}; rowrite = false;
  			if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
  			if(tag.hidden == "1") { rowrite = true; rowobj.hidden = true; }
  			if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
  			if(rowrite) rows[tagr-1] = rowobj;
  		}
  
  		/* 18.3.1.4 c CT_Cell */
  		cells = x.slice(ri).split(cellregex);
  		for(ri = 0; ri != cells.length; ++ri) {
  			x = cells[ri].trim();
  			if(x.length === 0) continue;
  			cref = x.match(rregex); idx = ri; i=0; cc=0;
  			x = "<c " + (x.slice(0,1)=="<"?">":"") + x;
  			if(cref != null && cref.length === 2) {
  				idx = 0; d=cref[1];
  				for(i=0; i != d.length; ++i) {
  					if((cc=d.charCodeAt(i)-64) < 1 || cc > 26) break;
  					idx = 26*idx + cc;
  				}
  				--idx;
  				tagc = idx;
  			} else ++tagc;
  			for(i = 0; i != x.length; ++i) if(x.charCodeAt(i) === 62) break; ++i;
  			tag = parsexmltag(x.slice(0,i), true);
  			if(!tag.r) tag.r = encode_cell({r:tagr-1, c:tagc});
  			d = x.slice(i);
  			p = ({t:""});
  
  			if((cref=d.match(match_v))!= null && cref[1] !== '') p.v=unescapexml(cref[1]);
  			if(opts.cellFormula) {
  				if((cref=d.match(match_f))!= null && cref[1] !== '') {
  					/* TODO: match against XLSXFutureFunctions */
  					p.f=_xlfn(unescapexml(utf8read(cref[1])));
  					if(cref[0].indexOf('t="array"') > -1) {
  						p.F = (d.match(refregex)||[])[1];
  						if(p.F.indexOf(":") > -1) arrayf.push([safe_decode_range(p.F), p.F]);
  					} else if(cref[0].indexOf('t="shared"') > -1) {
  						// TODO: parse formula
  						ftag = parsexmltag(cref[0]);
  						sharedf[parseInt(ftag.si, 10)] = [ftag, _xlfn(unescapexml(utf8read(cref[1])))];
  					}
  				} else if((cref=d.match(/<f[^>]*\/>/))) {
  					ftag = parsexmltag(cref[0]);
  					if(sharedf[ftag.si]) p.f = shift_formula_xlsx(sharedf[ftag.si][1], sharedf[ftag.si][0].ref, tag.r);
  				}
  				/* TODO: factor out contains logic */
  				var _tag = decode_cell(tag.r);
  				for(i = 0; i < arrayf.length; ++i)
  					if(_tag.r >= arrayf[i][0].s.r && _tag.r <= arrayf[i][0].e.r)
  						if(_tag.c >= arrayf[i][0].s.c && _tag.c <= arrayf[i][0].e.c)
  							p.F = arrayf[i][1];
  			}
  
  			if(tag.t == null && p.v === undefined) {
  				if(p.f || p.F) {
  					p.v = 0; p.t = "n";
  				} else if(!opts.sheetStubs) continue;
  				else p.t = "z";
  			}
  			else p.t = tag.t || "n";
  			if(guess.s.c > tagc) guess.s.c = tagc;
  			if(guess.e.c < tagc) guess.e.c = tagc;
  			/* 18.18.11 t ST_CellType */
  			switch(p.t) {
  				case 'n':
  					if(p.v == "" || p.v == null) {
  						if(!opts.sheetStubs) continue;
  						p.t = 'z';
  					} else p.v = parseFloat(p.v);
  					break;
  				case 's':
  					if(typeof p.v == 'undefined') {
  						if(!opts.sheetStubs) continue;
  						p.t = 'z';
  					} else {
  						sstr = strs[parseInt(p.v, 10)];
  						p.v = sstr.t;
  						p.r = sstr.r;
  						if(opts.cellHTML) p.h = sstr.h;
  					}
  					break;
  				case 'str':
  					p.t = "s";
  					p.v = (p.v!=null) ? utf8read(p.v) : '';
  					if(opts.cellHTML) p.h = escapehtml(p.v);
  					break;
  				case 'inlineStr':
  					cref = d.match(isregex);
  					p.t = 's';
  					if(cref != null && (sstr = parse_si(cref[1]))) p.v = sstr.t; else p.v = "";
  					break;
  				case 'b': p.v = parsexmlbool(p.v); break;
  				case 'd':
  					if(opts.cellDates) p.v = parseDate(p.v, 1);
  					else { p.v = datenum(parseDate(p.v, 1)); p.t = 'n'; }
  					break;
  				/* error string in .w, number in .v */
  				case 'e':
  					if(!opts || opts.cellText !== false) p.w = p.v;
  					p.v = RBErr[p.v]; break;
  			}
  			/* formatting */
  			fmtid = fillid = 0;
  			if(do_format && tag.s !== undefined) {
  				cf = styles.CellXf[tag.s];
  				if(cf != null) {
  					if(cf.numFmtId != null) fmtid = cf.numFmtId;
  					if(opts.cellStyles) {
  						if(cf.fillId != null) fillid = cf.fillId;
  					}
  				}
  			}
  			safe_format(p, fmtid, fillid, opts, themes, styles);
  			if(opts.cellDates && do_format && p.t == 'n' && SSF.is_date(SSF._table[fmtid])) { p.t = 'd'; p.v = numdate(p.v); }
  			if(dense) {
  				var _r = decode_cell(tag.r);
  				if(!s[_r.r]) s[_r.r] = [];
  				s[_r.r][_r.c] = p;
  			} else s[tag.r] = p;
  		}
  	}
  	if(rows.length > 0) s['!rows'] = rows;
  }; })();
  
  function write_ws_xml_data(ws, opts, idx, wb) {
  	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell="", ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
  	var dense = Array.isArray(ws);
  	var params = ({r:rr}), row, height = -1;
  	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
  	for(R = range.s.r; R <= range.e.r; ++R) {
  		r = [];
  		rr = encode_row(R);
  		for(C = range.s.c; C <= range.e.c; ++C) {
  			ref = cols[C] + rr;
  			var _cell = dense ? (ws[R]||[])[C]: ws[ref];
  			if(_cell === undefined) continue;
  			if((cell = write_ws_xml_cell(_cell, ref, ws, opts, idx, wb)) != null) r.push(cell);
  		}
  		if(r.length > 0 || (rows && rows[R])) {
  			params = ({r:rr});
  			if(rows && rows[R]) {
  				row = rows[R];
  				if(row.hidden) params.hidden = 1;
  				height = -1;
  				if (row.hpx) height = px2pt(row.hpx);
  				else if (row.hpt) height = row.hpt;
  				if (height > -1) { params.ht = height; params.customHeight = 1; }
  				if (row.level) { params.outlineLevel = row.level; }
  			}
  			o[o.length] = (writextag('row', r.join(""), params));
  		}
  	}
  	if(rows) for(; R < rows.length; ++R) {
  		if(rows && rows[R]) {
  			params = ({r:R+1});
  			row = rows[R];
  			if(row.hidden) params.hidden = 1;
  			height = -1;
  			if (row.hpx) height = px2pt(row.hpx);
  			else if (row.hpt) height = row.hpt;
  			if (height > -1) { params.ht = height; params.customHeight = 1; }
  			if (row.level) { params.outlineLevel = row.level; }
  			o[o.length] = (writextag('row', "", params));
  		}
  	}
  	return o.join("");
  }
  
  var WS_XML_ROOT = writextag('worksheet', null, {
  	'xmlns': XMLNS.main[0],
  	'xmlns:r': XMLNS.r
  });
  
  function write_ws_xml(idx, opts, wb, rels) {
  	var o = [XML_HEADER, WS_XML_ROOT];
  	var s = wb.SheetNames[idx], sidx = 0, rdata = "";
  	var ws = wb.Sheets[s];
  	if(ws == null) ws = {};
  	var ref = ws['!ref'] || 'A1';
  	var range = safe_decode_range(ref);
  	if(range.e.c > 0x3FFF || range.e.r > 0xFFFFF) {
  		if(opts.WTF) throw new Error("Range " + ref + " exceeds format limit A1:XFD1048576");
  		range.e.c = Math.min(range.e.c, 0x3FFF);
  		range.e.r = Math.min(range.e.c, 0xFFFFF);
  		ref = encode_range(range);
  	}
  	if(!rels) rels = {};
  	ws['!comments'] = [];
  	ws['!drawing'] = [];
  
  	if(opts.bookType !== 'xlsx' && wb.vbaraw) {
  		var cname = wb.SheetNames[idx];
  		try { if(wb.Workbook) cname = wb.Workbook.Sheets[idx].CodeName || cname; } catch(e) {}
  		o[o.length] = (writextag('sheetPr', null, {'codeName': escapexml(cname)}));
  	}
  
  	o[o.length] = (writextag('dimension', null, {'ref': ref}));
  
  	o[o.length] = write_ws_xml_sheetviews(ws, opts, idx, wb);
  
  	/* TODO: store in WB, process styles */
  	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {
  		defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16',
  		baseColWidth:opts.sheetFormat.baseColWidth||'10',
  		outlineLevelRow:opts.sheetFormat.outlineLevelRow||'7'
  	}));
  
  	if(ws['!cols'] != null && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));
  
  	o[sidx = o.length] = '<sheetData/>';
  	ws['!links'] = [];
  	if(ws['!ref'] != null) {
  		rdata = write_ws_xml_data(ws, opts, idx, wb, rels);
  		if(rdata.length > 0) o[o.length] = (rdata);
  	}
  	if(o.length>sidx+1) { o[o.length] = ('</sheetData>'); o[sidx]=o[sidx].replace("/>",">"); }
  
  	/* sheetCalcPr */
  
  	if(ws['!protect'] != null) o[o.length] = write_ws_xml_protection(ws['!protect']);
  
  	/* protectedRanges */
  	/* scenarios */
  
  	if(ws['!autofilter'] != null) o[o.length] = write_ws_xml_autofilter(ws['!autofilter']);
  
  	/* sortState */
  	/* dataConsolidate */
  	/* customSheetViews */
  
  	if(ws['!merges'] != null && ws['!merges'].length > 0) o[o.length] = (write_ws_xml_merges(ws['!merges']));
  
  	/* phoneticPr */
  	/* conditionalFormatting */
  	/* dataValidations */
  
  	var relc = -1, rel, rId = -1;
  	if(ws['!links'].length > 0) {
  		o[o.length] = "<hyperlinks>";
  		ws['!links'].forEach(function(l) {
  			if(!l[1].Target) return;
  			rel = ({"ref":l[0]});
  			if(l[1].Target.charAt(0) != "#") {
  				rId = add_rels(rels, -1, escapexml(l[1].Target).replace(/#.*$/, ""), RELS.HLINK);
  				rel["r:id"] = "rId"+rId;
  			}
  			if((relc = l[1].Target.indexOf("#")) > -1) rel.location = escapexml(l[1].Target.slice(relc+1));
  			if(l[1].Tooltip) rel.tooltip = escapexml(l[1].Tooltip);
  			o[o.length] = writextag("hyperlink",null,rel);
  		});
  		o[o.length] = "</hyperlinks>";
  	}
  	delete ws['!links'];
  
  	/* printOptions */
  	if (ws['!margins'] != null) o[o.length] =  write_ws_xml_margins(ws['!margins']);
  	/* pageSetup */
  
  	//var hfidx = o.length;
  	o[o.length] = "";
  
  	/* rowBreaks */
  	/* colBreaks */
  	/* customProperties */
  	/* cellWatches */
  
  	if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) o[o.length] = writetag("ignoredErrors", writextag("ignoredError", null, {numberStoredAsText:1, sqref:ref}));
  
  	/* smartTags */
  
  	if(ws['!drawing'].length > 0) {
  		rId = add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
  		o[o.length] = writextag("drawing", null, {"r:id":"rId" + rId});
  	}
  	else delete ws['!drawing'];
  
  	if(ws['!comments'].length > 0) {
  		rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
  		o[o.length] = writextag("legacyDrawing", null, {"r:id":"rId" + rId});
  		ws['!legacy'] = rId;
  	}
  
  	/* drawingHF */
  	/* picture */
  	/* oleObjects */
  	/* controls */
  	/* webPublishItems */
  	/* tableParts */
  	/* extList */
  
  	if(o.length>2) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  
  /* [MS-XLSB] 2.4.726 BrtRowHdr */
  function parse_BrtRowHdr(data, length) {
  	var z = ({});
  	var tgt = data.l + length;
  	z.r = data.read_shift(4);
  	data.l += 4; // TODO: ixfe
  	var miyRw = data.read_shift(2);
  	data.l += 1; // TODO: top/bot padding
  	var flags = data.read_shift(1);
  	data.l = tgt;
  	if(flags & 0x07) z.level = flags & 0x07;
  	if(flags & 0x10) z.hidden = true;
  	if(flags & 0x20) z.hpt = miyRw / 20;
  	return z;
  }
  function write_BrtRowHdr(R, range, ws) {
  	var o = new_buf(17+8*16);
  	var row = (ws['!rows']||[])[R]||{};
  	o.write_shift(4, R);
  
  	o.write_shift(4, 0); /* TODO: ixfe */
  
  	var miyRw = 0x0140;
  	if(row.hpx) miyRw = px2pt(row.hpx) * 20;
  	else if(row.hpt) miyRw = row.hpt * 20;
  	o.write_shift(2, miyRw);
  
  	o.write_shift(1, 0); /* top/bot padding */
  
  	var flags = 0x0;
  	if(row.level) flags |= row.level;
  	if(row.hidden) flags |= 0x10;
  	if(row.hpx || row.hpt) flags |= 0x20;
  	o.write_shift(1, flags);
  
  	o.write_shift(1, 0); /* phonetic guide */
  
  	/* [MS-XLSB] 2.5.8 BrtColSpan explains the mechanism */
  	var ncolspan = 0, lcs = o.l;
  	o.l += 4;
  
  	var caddr = {r:R, c:0};
  	for(var i = 0; i < 16; ++i) {
  		if((range.s.c > ((i+1) << 10)) || (range.e.c < (i << 10))) continue;
  		var first = -1, last = -1;
  		for(var j = (i<<10); j < ((i+1)<<10); ++j) {
  			caddr.c = j;
  			var cell = Array.isArray(ws) ? (ws[caddr.r]||[])[caddr.c] : ws[encode_cell(caddr)];
  			if(cell) { if(first < 0) first = j; last = j; }
  		}
  		if(first < 0) continue;
  		++ncolspan;
  		o.write_shift(4, first);
  		o.write_shift(4, last);
  	}
  
  	var l = o.l;
  	o.l = lcs;
  	o.write_shift(4, ncolspan);
  	o.l = l;
  
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  function write_row_header(ba, ws, range, R) {
  	var o = write_BrtRowHdr(R, range, ws);
  	if((o.length > 17) || (ws['!rows']||[])[R]) write_record(ba, 'BrtRowHdr', o);
  }
  
  /* [MS-XLSB] 2.4.820 BrtWsDim */
  var parse_BrtWsDim = parse_UncheckedRfX;
  var write_BrtWsDim = write_UncheckedRfX;
  
  /* [MS-XLSB] 2.4.821 BrtWsFmtInfo */
  function parse_BrtWsFmtInfo() {
  }
  //function write_BrtWsFmtInfo(ws, o) { }
  
  /* [MS-XLSB] 2.4.823 BrtWsProp */
  function parse_BrtWsProp(data, length) {
  	var z = {};
  	/* TODO: pull flags */
  	data.l += 19;
  	z.name = parse_XLSBCodeName(data, length - 19);
  	return z;
  }
  function write_BrtWsProp(str, o) {
  	if(o == null) o = new_buf(84+4*str.length);
  	for(var i = 0; i < 3; ++i) o.write_shift(1,0);
  	write_BrtColor({auto:1}, o);
  	o.write_shift(-4,-1);
  	o.write_shift(-4,-1);
  	write_XLSBCodeName(str, o);
  	return o.slice(0, o.l);
  }
  
  /* [MS-XLSB] 2.4.306 BrtCellBlank */
  function parse_BrtCellBlank(data) {
  	var cell = parse_XLSBCell(data);
  	return [cell];
  }
  function write_BrtCellBlank(cell, ncell, o) {
  	if(o == null) o = new_buf(8);
  	return write_XLSBCell(ncell, o);
  }
  
  
  /* [MS-XLSB] 2.4.307 BrtCellBool */
  function parse_BrtCellBool(data) {
  	var cell = parse_XLSBCell(data);
  	var fBool = data.read_shift(1);
  	return [cell, fBool, 'b'];
  }
  function write_BrtCellBool(cell, ncell, o) {
  	if(o == null) o = new_buf(9);
  	write_XLSBCell(ncell, o);
  	o.write_shift(1, cell.v ? 1 : 0);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.308 BrtCellError */
  function parse_BrtCellError(data) {
  	var cell = parse_XLSBCell(data);
  	var bError = data.read_shift(1);
  	return [cell, bError, 'e'];
  }
  
  /* [MS-XLSB] 2.4.311 BrtCellIsst */
  function parse_BrtCellIsst(data) {
  	var cell = parse_XLSBCell(data);
  	var isst = data.read_shift(4);
  	return [cell, isst, 's'];
  }
  function write_BrtCellIsst(cell, ncell, o) {
  	if(o == null) o = new_buf(12);
  	write_XLSBCell(ncell, o);
  	o.write_shift(4, ncell.v);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.313 BrtCellReal */
  function parse_BrtCellReal(data) {
  	var cell = parse_XLSBCell(data);
  	var value = parse_Xnum(data);
  	return [cell, value, 'n'];
  }
  function write_BrtCellReal(cell, ncell, o) {
  	if(o == null) o = new_buf(16);
  	write_XLSBCell(ncell, o);
  	write_Xnum(cell.v, o);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.314 BrtCellRk */
  function parse_BrtCellRk(data) {
  	var cell = parse_XLSBCell(data);
  	var value = parse_RkNumber(data);
  	return [cell, value, 'n'];
  }
  function write_BrtCellRk(cell, ncell, o) {
  	if(o == null) o = new_buf(12);
  	write_XLSBCell(ncell, o);
  	write_RkNumber(cell.v, o);
  	return o;
  }
  
  
  /* [MS-XLSB] 2.4.317 BrtCellSt */
  function parse_BrtCellSt(data) {
  	var cell = parse_XLSBCell(data);
  	var value = parse_XLWideString(data);
  	return [cell, value, 'str'];
  }
  function write_BrtCellSt(cell, ncell, o) {
  	if(o == null) o = new_buf(12 + 4 * cell.v.length);
  	write_XLSBCell(ncell, o);
  	write_XLWideString(cell.v, o);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.653 BrtFmlaBool */
  function parse_BrtFmlaBool(data, length, opts) {
  	var end = data.l + length;
  	var cell = parse_XLSBCell(data);
  	cell.r = opts['!row'];
  	var value = data.read_shift(1);
  	var o = [cell, value, 'b'];
  	if(opts.cellFormula) {
  		data.l += 2;
  		var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
  		o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
  	}
  	else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.654 BrtFmlaError */
  function parse_BrtFmlaError(data, length, opts) {
  	var end = data.l + length;
  	var cell = parse_XLSBCell(data);
  	cell.r = opts['!row'];
  	var value = data.read_shift(1);
  	var o = [cell, value, 'e'];
  	if(opts.cellFormula) {
  		data.l += 2;
  		var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
  		o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
  	}
  	else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.655 BrtFmlaNum */
  function parse_BrtFmlaNum(data, length, opts) {
  	var end = data.l + length;
  	var cell = parse_XLSBCell(data);
  	cell.r = opts['!row'];
  	var value = parse_Xnum(data);
  	var o = [cell, value, 'n'];
  	if(opts.cellFormula) {
  		data.l += 2;
  		var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
  		o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
  	}
  	else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.656 BrtFmlaString */
  function parse_BrtFmlaString(data, length, opts) {
  	var end = data.l + length;
  	var cell = parse_XLSBCell(data);
  	cell.r = opts['!row'];
  	var value = parse_XLWideString(data);
  	var o = [cell, value, 'str'];
  	if(opts.cellFormula) {
  		data.l += 2;
  		var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
  		o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
  	}
  	else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.682 BrtMergeCell */
  var parse_BrtMergeCell = parse_UncheckedRfX;
  var write_BrtMergeCell = write_UncheckedRfX;
  /* [MS-XLSB] 2.4.107 BrtBeginMergeCells */
  function write_BrtBeginMergeCells(cnt, o) {
  	if(o == null) o = new_buf(4);
  	o.write_shift(4, cnt);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.662 BrtHLink */
  function parse_BrtHLink(data, length) {
  	var end = data.l + length;
  	var rfx = parse_UncheckedRfX(data, 16);
  	var relId = parse_XLNullableWideString(data);
  	var loc = parse_XLWideString(data);
  	var tooltip = parse_XLWideString(data);
  	var display = parse_XLWideString(data);
  	data.l = end;
  	var o = ({rfx:rfx, relId:relId, loc:loc, display:display});
  	if(tooltip) o.Tooltip = tooltip;
  	return o;
  }
  function write_BrtHLink(l, rId) {
  	var o = new_buf(50+4*(l[1].Target.length + (l[1].Tooltip || "").length));
  	write_UncheckedRfX({s:decode_cell(l[0]), e:decode_cell(l[0])}, o);
  	write_RelID("rId" + rId, o);
  	var locidx = l[1].Target.indexOf("#");
  	var loc = locidx == -1 ? "" : l[1].Target.slice(locidx+1);
  	write_XLWideString(loc || "", o);
  	write_XLWideString(l[1].Tooltip || "", o);
  	write_XLWideString("", o);
  	return o.slice(0, o.l);
  }
  
  /* [MS-XLSB] 2.4.6 BrtArrFmla */
  function parse_BrtArrFmla(data, length, opts) {
  	var end = data.l + length;
  	var rfx = parse_RfX(data, 16);
  	var fAlwaysCalc = data.read_shift(1);
  	var o = [rfx]; o[2] = fAlwaysCalc;
  	if(opts.cellFormula) {
  		var formula = parse_XLSBArrayParsedFormula(data, end - data.l, opts);
  		o[1] = formula;
  	} else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.750 BrtShrFmla */
  function parse_BrtShrFmla(data, length, opts) {
  	var end = data.l + length;
  	var rfx = parse_UncheckedRfX(data, 16);
  	var o = [rfx];
  	if(opts.cellFormula) {
  		var formula = parse_XLSBSharedParsedFormula(data, end - data.l, opts);
  		o[1] = formula;
  		data.l = end;
  	} else data.l = end;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.323 BrtColInfo */
  /* TODO: once XLS ColInfo is set, combine the functions */
  function write_BrtColInfo(C, col, o) {
  	if(o == null) o = new_buf(18);
  	var p = col_obj_w(C, col);
  	o.write_shift(-4, C);
  	o.write_shift(-4, C);
  	o.write_shift(4, (p.width || 10) * 256);
  	o.write_shift(4, 0/*ixfe*/); // style
  	var flags = 0;
  	if(col.hidden) flags |= 0x01;
  	if(typeof p.width == 'number') flags |= 0x02;
  	o.write_shift(1, flags); // bit flag
  	o.write_shift(1, 0); // bit flag
  	return o;
  }
  
  /* [MS-XLSB] 2.4.678 BrtMargins */
  var BrtMarginKeys = ["left","right","top","bottom","header","footer"];
  function parse_BrtMargins(data) {
  	var margins = ({});
  	BrtMarginKeys.forEach(function(k) { margins[k] = parse_Xnum(data, 8); });
  	return margins;
  }
  function write_BrtMargins(margins, o) {
  	if(o == null) o = new_buf(6*8);
  	default_margins(margins);
  	BrtMarginKeys.forEach(function(k) { write_Xnum((margins)[k], o); });
  	return o;
  }
  
  /* [MS-XLSB] 2.4.299 BrtBeginWsView */
  function parse_BrtBeginWsView(data) {
  	var f = data.read_shift(2);
  	data.l += 28;
  	return { RTL: f & 0x20 };
  }
  function write_BrtBeginWsView(ws, Workbook, o) {
  	if(o == null) o = new_buf(30);
  	var f = 0x39c;
  	if((((Workbook||{}).Views||[])[0]||{}).RTL) f |= 0x20;
  	o.write_shift(2, f); // bit flag
  	o.write_shift(4, 0);
  	o.write_shift(4, 0); // view first row
  	o.write_shift(4, 0); // view first col
  	o.write_shift(1, 0); // gridline color ICV
  	o.write_shift(1, 0);
  	o.write_shift(2, 0);
  	o.write_shift(2, 100); // zoom scale
  	o.write_shift(2, 0);
  	o.write_shift(2, 0);
  	o.write_shift(2, 0);
  	o.write_shift(4, 0); // workbook view id
  	return o;
  }
  
  /* [MS-XLSB] 2.4.309 BrtCellIgnoreEC */
  function write_BrtCellIgnoreEC(ref) {
  	var o = new_buf(24);
  	o.write_shift(4, 4);
  	o.write_shift(4, 1);
  	write_UncheckedRfX(ref, o);
  	return o;
  }
  
  /* [MS-XLSB] 2.4.748 BrtSheetProtection */
  function write_BrtSheetProtection(sp, o) {
  	if(o == null) o = new_buf(16*4+2);
  	o.write_shift(2, sp.password ? crypto_CreatePasswordVerifier_Method1(sp.password) : 0);
  	o.write_shift(4, 1); // this record should not be written if no protection
  	[
  		["objects",             false], // fObjects
  		["scenarios",           false], // fScenarios
  		["formatCells",          true], // fFormatCells
  		["formatColumns",        true], // fFormatColumns
  		["formatRows",           true], // fFormatRows
  		["insertColumns",        true], // fInsertColumns
  		["insertRows",           true], // fInsertRows
  		["insertHyperlinks",     true], // fInsertHyperlinks
  		["deleteColumns",        true], // fDeleteColumns
  		["deleteRows",           true], // fDeleteRows
  		["selectLockedCells",   false], // fSelLockedCells
  		["sort",                 true], // fSort
  		["autoFilter",           true], // fAutoFilter
  		["pivotTables",          true], // fPivotTables
  		["selectUnlockedCells", false]  // fSelUnlockedCells
  	].forEach(function(n) {
  if(n[1]) o.write_shift(4, sp[n[0]] != null && !sp[n[0]] ? 1 : 0);
  		else      o.write_shift(4, sp[n[0]] != null && sp[n[0]] ? 0 : 1);
  	});
  	return o;
  }
  
  /* [MS-XLSB] 2.1.7.61 Worksheet */
  function parse_ws_bin(data, _opts, idx, rels, wb, themes, styles) {
  	if(!data) return data;
  	var opts = _opts || {};
  	if(!rels) rels = {'!id':{}};
  	if(DENSE != null && opts.dense == null) opts.dense = DENSE;
  	var s = (opts.dense ? [] : {});
  
  	var ref;
  	var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
  
  	var pass = false, end = false;
  	var row, p, cf, R, C, addr, sstr, rr, cell;
  	var merges = [];
  	opts.biff = 12;
  	opts['!row'] = 0;
  
  	var ai = 0, af = false;
  
  	var arrayf = [];
  	var sharedf = {};
  	var supbooks = opts.supbooks || ([[]]);
  	supbooks.sharedf = sharedf;
  	supbooks.arrayf = arrayf;
  	supbooks.SheetNames = wb.SheetNames || wb.Sheets.map(function(x) { return x.name; });
  	if(!opts.supbooks) {
  		opts.supbooks = supbooks;
  		if(wb.Names) for(var i = 0; i < wb.Names.length; ++i) supbooks[0][i+1] = wb.Names[i];
  	}
  
  	var colinfo = [], rowinfo = [];
  	var seencol = false;
  
  	recordhopper(data, function ws_parse(val, R_n, RT) {
  		if(end) return;
  		switch(RT) {
  			case 0x0094: /* 'BrtWsDim' */
  				ref = val; break;
  			case 0x0000: /* 'BrtRowHdr' */
  				row = val;
  				if(opts.sheetRows && opts.sheetRows <= row.r) end=true;
  				rr = encode_row(R = row.r);
  				opts['!row'] = row.r;
  				if(val.hidden || val.hpt || val.level != null) {
  					if(val.hpt) val.hpx = pt2px(val.hpt);
  					rowinfo[val.r] = val;
  				}
  				break;
  
  			case 0x0002: /* 'BrtCellRk' */
  			case 0x0003: /* 'BrtCellError' */
  			case 0x0004: /* 'BrtCellBool' */
  			case 0x0005: /* 'BrtCellReal' */
  			case 0x0006: /* 'BrtCellSt' */
  			case 0x0007: /* 'BrtCellIsst' */
  			case 0x0008: /* 'BrtFmlaString' */
  			case 0x0009: /* 'BrtFmlaNum' */
  			case 0x000A: /* 'BrtFmlaBool' */
  			case 0x000B: /* 'BrtFmlaError' */
  				p = ({t:val[2]});
  				switch(val[2]) {
  					case 'n': p.v = val[1]; break;
  					case 's': sstr = strs[val[1]]; p.v = sstr.t; p.r = sstr.r; break;
  					case 'b': p.v = val[1] ? true : false; break;
  					case 'e': p.v = val[1]; if(opts.cellText !== false) p.w = BErr[p.v]; break;
  					case 'str': p.t = 's'; p.v = val[1]; break;
  				}
  				if((cf = styles.CellXf[val[0].iStyleRef])) safe_format(p,cf.numFmtId,null,opts, themes, styles);
  				C = val[0].c;
  				if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
  				else s[encode_col(C) + rr] = p;
  				if(opts.cellFormula) {
  					af = false;
  					for(ai = 0; ai < arrayf.length; ++ai) {
  						var aii = arrayf[ai];
  						if(row.r >= aii[0].s.r && row.r <= aii[0].e.r)
  							if(C >= aii[0].s.c && C <= aii[0].e.c) {
  								p.F = encode_range(aii[0]); af = true;
  							}
  					}
  					if(!af && val.length > 3) p.f = val[3];
  				}
  				if(refguess.s.r > row.r) refguess.s.r = row.r;
  				if(refguess.s.c > C) refguess.s.c = C;
  				if(refguess.e.r < row.r) refguess.e.r = row.r;
  				if(refguess.e.c < C) refguess.e.c = C;
  				if(opts.cellDates && cf && p.t == 'n' && SSF.is_date(SSF._table[cf.numFmtId])) {
  					var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
  				}
  				break;
  
  			case 0x0001: /* 'BrtCellBlank' */
  				if(!opts.sheetStubs || pass) break;
  				p = ({t:'z',v:undefined});
  				C = val[0].c;
  				if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
  				else s[encode_col(C) + rr] = p;
  				if(refguess.s.r > row.r) refguess.s.r = row.r;
  				if(refguess.s.c > C) refguess.s.c = C;
  				if(refguess.e.r < row.r) refguess.e.r = row.r;
  				if(refguess.e.c < C) refguess.e.c = C;
  				break;
  
  			case 0x00B0: /* 'BrtMergeCell' */
  				merges.push(val); break;
  
  			case 0x01EE: /* 'BrtHLink' */
  				var rel = rels['!id'][val.relId];
  				if(rel) {
  					val.Target = rel.Target;
  					if(val.loc) val.Target += "#"+val.loc;
  					val.Rel = rel;
  				} else if(val.relId == '') {
  					val.Target = "#" + val.loc;
  				}
  				for(R=val.rfx.s.r;R<=val.rfx.e.r;++R) for(C=val.rfx.s.c;C<=val.rfx.e.c;++C) {
  					if(opts.dense) {
  						if(!s[R]) s[R] = [];
  						if(!s[R][C]) s[R][C] = {t:'z',v:undefined};
  						s[R][C].l = val;
  					} else {
  						addr = encode_cell({c:C,r:R});
  						if(!s[addr]) s[addr] = {t:'z',v:undefined};
  						s[addr].l = val;
  					}
  				}
  				break;
  
  			case 0x01AA: /* 'BrtArrFmla' */
  				if(!opts.cellFormula) break;
  				arrayf.push(val);
  				cell = ((opts.dense ? s[R][C] : s[encode_col(C) + rr]));
  				cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
  				cell.F = encode_range(val[0]);
  				break;
  			case 0x01AB: /* 'BrtShrFmla' */
  				if(!opts.cellFormula) break;
  				sharedf[encode_cell(val[0].s)] = val[1];
  				cell = (opts.dense ? s[R][C] : s[encode_col(C) + rr]);
  				cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
  				break;
  
  			/* identical to 'ColInfo' in XLS */
  			case 0x003C: /* 'BrtColInfo' */
  				if(!opts.cellStyles) break;
  				while(val.e >= val.s) {
  					colinfo[val.e--] = { width: val.w/256, hidden: !!(val.flags & 0x01) };
  					if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
  					process_col(colinfo[val.e+1]);
  				}
  				break;
  
  			case 0x00A1: /* 'BrtBeginAFilter' */
  				s['!autofilter'] = { ref:encode_range(val) };
  				break;
  
  			case 0x01DC: /* 'BrtMargins' */
  				s['!margins'] = val;
  				break;
  
  			case 0x0093: /* 'BrtWsProp' */
  				if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
  				if(val.name) wb.Sheets[idx].CodeName = val.name;
  				break;
  
  			case 0x0089: /* 'BrtBeginWsView' */
  				if(!wb.Views) wb.Views = [{}];
  				if(!wb.Views[0]) wb.Views[0] = {};
  				if(val.RTL) wb.Views[0].RTL = true;
  				break;
  
  			case 0x01E5: /* 'BrtWsFmtInfo' */
  				break;
  			case 0x00AF: /* 'BrtAFilterDateGroupItem' */
  			case 0x0284: /* 'BrtActiveX' */
  			case 0x0271: /* 'BrtBigName' */
  			case 0x0232: /* 'BrtBkHim' */
  			case 0x018C: /* 'BrtBrk' */
  			case 0x0458: /* 'BrtCFIcon' */
  			case 0x047A: /* 'BrtCFRuleExt' */
  			case 0x01D7: /* 'BrtCFVO' */
  			case 0x041A: /* 'BrtCFVO14' */
  			case 0x0289: /* 'BrtCellIgnoreEC' */
  			case 0x0451: /* 'BrtCellIgnoreEC14' */
  			case 0x0031: /* 'BrtCellMeta' */
  			case 0x024D: /* 'BrtCellSmartTagProperty' */
  			case 0x025F: /* 'BrtCellWatch' */
  			case 0x0234: /* 'BrtColor' */
  			case 0x041F: /* 'BrtColor14' */
  			case 0x00A8: /* 'BrtColorFilter' */
  			case 0x00AE: /* 'BrtCustomFilter' */
  			case 0x049C: /* 'BrtCustomFilter14' */
  			case 0x01F3: /* 'BrtDRef' */
  			case 0x0040: /* 'BrtDVal' */
  			case 0x041D: /* 'BrtDVal14' */
  			case 0x0226: /* 'BrtDrawing' */
  			case 0x00AB: /* 'BrtDynamicFilter' */
  			case 0x00A7: /* 'BrtFilter' */
  			case 0x0499: /* 'BrtFilter14' */
  			case 0x00A9: /* 'BrtIconFilter' */
  			case 0x049D: /* 'BrtIconFilter14' */
  			case 0x0227: /* 'BrtLegacyDrawing' */
  			case 0x0228: /* 'BrtLegacyDrawingHF' */
  			case 0x0295: /* 'BrtListPart' */
  			case 0x027F: /* 'BrtOleObject' */
  			case 0x01DE: /* 'BrtPageSetup' */
  			case 0x0097: /* 'BrtPane' */
  			case 0x0219: /* 'BrtPhoneticInfo' */
  			case 0x01DD: /* 'BrtPrintOptions' */
  			case 0x0218: /* 'BrtRangeProtection' */
  			case 0x044F: /* 'BrtRangeProtection14' */
  			case 0x02A8: /* 'BrtRangeProtectionIso' */
  			case 0x0450: /* 'BrtRangeProtectionIso14' */
  			case 0x0400: /* 'BrtRwDescent' */
  			case 0x0098: /* 'BrtSel' */
  			case 0x0297: /* 'BrtSheetCalcProp' */
  			case 0x0217: /* 'BrtSheetProtection' */
  			case 0x02A6: /* 'BrtSheetProtectionIso' */
  			case 0x01F8: /* 'BrtSlc' */
  			case 0x0413: /* 'BrtSparkline' */
  			case 0x01AC: /* 'BrtTable' */
  			case 0x00AA: /* 'BrtTop10Filter' */
  			case 0x0C00: /* 'BrtUid' */
  			case 0x0032: /* 'BrtValueMeta' */
  			case 0x0816: /* 'BrtWebExtension' */
  			case 0x0415: /* 'BrtWsFmtInfoEx14' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  			case 0x0025: /* 'BrtACBegin' */ break;
  			case 0x0026: /* 'BrtACEnd' */ break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	}, opts);
  
  	delete opts.supbooks;
  	delete opts['!row'];
  
  	if(!s["!ref"] && (refguess.s.r < 2000000 || ref && (ref.e.r > 0 || ref.e.c > 0 || ref.s.r > 0 || ref.s.c > 0))) s["!ref"] = encode_range(ref || refguess);
  	if(opts.sheetRows && s["!ref"]) {
  		var tmpref = safe_decode_range(s["!ref"]);
  		if(opts.sheetRows <= +tmpref.e.r) {
  			tmpref.e.r = opts.sheetRows - 1;
  			if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
  			if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
  			if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
  			if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
  			s["!fullref"] = s["!ref"];
  			s["!ref"] = encode_range(tmpref);
  		}
  	}
  	if(merges.length > 0) s["!merges"] = merges;
  	if(colinfo.length > 0) s["!cols"] = colinfo;
  	if(rowinfo.length > 0) s["!rows"] = rowinfo;
  	return s;
  }
  
  /* TODO: something useful -- this is a stub */
  function write_ws_bin_cell(ba, cell, R, C, opts, ws) {
  	if(cell.v === undefined) return "";
  	var vv = "";
  	switch(cell.t) {
  		case 'b': vv = cell.v ? "1" : "0"; break;
  		case 'd': // no BrtCellDate :(
  			cell = dup(cell);
  			cell.z = cell.z || SSF._table[14];
  			cell.v = datenum(parseDate(cell.v)); cell.t = 'n';
  			break;
  		/* falls through */
  		case 'n': case 'e': vv = ''+cell.v; break;
  		default: vv = cell.v; break;
  	}
  	var o = ({r:R, c:C});
  	/* TODO: cell style */
  	o.s = get_cell_style(opts.cellXfs, cell, opts);
  	if(cell.l) ws['!links'].push([encode_cell(o), cell.l]);
  	if(cell.c) ws['!comments'].push([encode_cell(o), cell.c]);
  	switch(cell.t) {
  		case 's': case 'str':
  			if(opts.bookSST) {
  				vv = get_sst_id(opts.Strings, (cell.v), opts.revStrings);
  				o.t = "s"; o.v = vv;
  				write_record(ba, "BrtCellIsst", write_BrtCellIsst(cell, o));
  			} else {
  				o.t = "str";
  				write_record(ba, "BrtCellSt", write_BrtCellSt(cell, o));
  			}
  			return;
  		case 'n':
  			/* TODO: determine threshold for Real vs RK */
  			if(cell.v == (cell.v | 0) && cell.v > -1000 && cell.v < 1000) write_record(ba, "BrtCellRk", write_BrtCellRk(cell, o));
  			else write_record(ba, "BrtCellReal", write_BrtCellReal(cell, o));
  			return;
  		case 'b':
  			o.t = "b";
  			write_record(ba, "BrtCellBool", write_BrtCellBool(cell, o));
  			return;
  		case 'e': /* TODO: error */ o.t = "e"; break;
  	}
  	write_record(ba, "BrtCellBlank", write_BrtCellBlank(cell, o));
  }
  
  function write_CELLTABLE(ba, ws, idx, opts) {
  	var range = safe_decode_range(ws['!ref'] || "A1"), ref, rr = "", cols = [];
  	write_record(ba, 'BrtBeginSheetData');
  	var dense = Array.isArray(ws);
  	var cap = range.e.r;
  	if(ws['!rows']) cap = Math.max(range.e.r, ws['!rows'].length - 1);
  	for(var R = range.s.r; R <= cap; ++R) {
  		rr = encode_row(R);
  		/* [ACCELLTABLE] */
  		/* BrtRowHdr */
  		write_row_header(ba, ws, range, R);
  		if(R <= range.e.r) for(var C = range.s.c; C <= range.e.c; ++C) {
  			/* *16384CELL */
  			if(R === range.s.r) cols[C] = encode_col(C);
  			ref = cols[C] + rr;
  			var cell = dense ? (ws[R]||[])[C] : ws[ref];
  			if(!cell) continue;
  			/* write cell */
  			write_ws_bin_cell(ba, cell, R, C, opts, ws);
  		}
  	}
  	write_record(ba, 'BrtEndSheetData');
  }
  
  function write_MERGECELLS(ba, ws) {
  	if(!ws || !ws['!merges']) return;
  	write_record(ba, 'BrtBeginMergeCells', write_BrtBeginMergeCells(ws['!merges'].length));
  	ws['!merges'].forEach(function(m) { write_record(ba, 'BrtMergeCell', write_BrtMergeCell(m)); });
  	write_record(ba, 'BrtEndMergeCells');
  }
  
  function write_COLINFOS(ba, ws) {
  	if(!ws || !ws['!cols']) return;
  	write_record(ba, 'BrtBeginColInfos');
  	ws['!cols'].forEach(function(m, i) { if(m) write_record(ba, 'BrtColInfo', write_BrtColInfo(i, m)); });
  	write_record(ba, 'BrtEndColInfos');
  }
  
  function write_IGNOREECS(ba, ws) {
  	if(!ws || !ws['!ref']) return;
  	write_record(ba, 'BrtBeginCellIgnoreECs');
  	write_record(ba, 'BrtCellIgnoreEC', write_BrtCellIgnoreEC(safe_decode_range(ws['!ref'])));
  	write_record(ba, 'BrtEndCellIgnoreECs');
  }
  
  function write_HLINKS(ba, ws, rels) {
  	/* *BrtHLink */
  	ws['!links'].forEach(function(l) {
  		if(!l[1].Target) return;
  		var rId = add_rels(rels, -1, l[1].Target.replace(/#.*$/, ""), RELS.HLINK);
  		write_record(ba, "BrtHLink", write_BrtHLink(l, rId));
  	});
  	delete ws['!links'];
  }
  function write_LEGACYDRAWING(ba, ws, idx, rels) {
  	/* [BrtLegacyDrawing] */
  	if(ws['!comments'].length > 0) {
  		var rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
  		write_record(ba, "BrtLegacyDrawing", write_RelID("rId" + rId));
  		ws['!legacy'] = rId;
  	}
  }
  
  function write_AUTOFILTER(ba, ws) {
  	if(!ws['!autofilter']) return;
  	write_record(ba, "BrtBeginAFilter", write_UncheckedRfX(safe_decode_range(ws['!autofilter'].ref)));
  	/* *FILTERCOLUMN */
  	/* [SORTSTATE] */
  	/* BrtEndAFilter */
  	write_record(ba, "BrtEndAFilter");
  }
  
  function write_WSVIEWS2(ba, ws, Workbook) {
  	write_record(ba, "BrtBeginWsViews");
  	{ /* 1*WSVIEW2 */
  		/* [ACUID] */
  		write_record(ba, "BrtBeginWsView", write_BrtBeginWsView(ws, Workbook));
  		/* [BrtPane] */
  		/* *4BrtSel */
  		/* *4SXSELECT */
  		/* *FRT */
  		write_record(ba, "BrtEndWsView");
  	}
  	/* *FRT */
  	write_record(ba, "BrtEndWsViews");
  }
  
  function write_WSFMTINFO() {
  	/* [ACWSFMTINFO] */
  	//write_record(ba, "BrtWsFmtInfo", write_BrtWsFmtInfo(ws));
  }
  
  function write_SHEETPROTECT(ba, ws) {
  	if(!ws['!protect']) return;
  	/* [BrtSheetProtectionIso] */
  	write_record(ba, "BrtSheetProtection", write_BrtSheetProtection(ws['!protect']));
  }
  
  function write_ws_bin(idx, opts, wb, rels) {
  	var ba = buf_array();
  	var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {};
  	var c = s; try { if(wb && wb.Workbook) c = wb.Workbook.Sheets[idx].CodeName || c; } catch(e) {}
  	var r = safe_decode_range(ws['!ref'] || "A1");
  	if(r.e.c > 0x3FFF || r.e.r > 0xFFFFF) {
  		if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:XFD1048576");
  		r.e.c = Math.min(r.e.c, 0x3FFF);
  		r.e.r = Math.min(r.e.c, 0xFFFFF);
  	}
  	ws['!links'] = [];
  	/* passed back to write_zip and removed there */
  	ws['!comments'] = [];
  	write_record(ba, "BrtBeginSheet");
  	if(wb.vbaraw) write_record(ba, "BrtWsProp", write_BrtWsProp(c));
  	write_record(ba, "BrtWsDim", write_BrtWsDim(r));
  	write_WSVIEWS2(ba, ws, wb.Workbook);
  	write_WSFMTINFO(ba, ws);
  	write_COLINFOS(ba, ws, idx, opts, wb);
  	write_CELLTABLE(ba, ws, idx, opts, wb);
  	/* [BrtSheetCalcProp] */
  	write_SHEETPROTECT(ba, ws);
  	/* *([BrtRangeProtectionIso] BrtRangeProtection) */
  	/* [SCENMAN] */
  	write_AUTOFILTER(ba, ws);
  	/* [SORTSTATE] */
  	/* [DCON] */
  	/* [USERSHVIEWS] */
  	write_MERGECELLS(ba, ws);
  	/* [BrtPhoneticInfo] */
  	/* *CONDITIONALFORMATTING */
  	/* [DVALS] */
  	write_HLINKS(ba, ws, rels);
  	/* [BrtPrintOptions] */
  	if(ws['!margins']) write_record(ba, "BrtMargins", write_BrtMargins(ws['!margins']));
  	/* [BrtPageSetup] */
  	/* [HEADERFOOTER] */
  	/* [RWBRK] */
  	/* [COLBRK] */
  	/* *BrtBigName */
  	/* [CELLWATCHES] */
  	if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) write_IGNOREECS(ba, ws);
  	/* [SMARTTAGS] */
  	/* [BrtDrawing] */
  	write_LEGACYDRAWING(ba, ws, idx, rels);
  	/* [BrtLegacyDrawingHF] */
  	/* [BrtBkHim] */
  	/* [OLEOBJECTS] */
  	/* [ACTIVEXCONTROLS] */
  	/* [WEBPUBITEMS] */
  	/* [LISTPARTS] */
  	/* FRTWORKSHEET */
  	write_record(ba, "BrtEndSheet");
  	return ba.end();
  }
  function parse_numCache(data) {
  	var col = [];
  
  	/* 21.2.2.150 pt CT_NumVal */
  	(data.match(/<c:pt idx="(\d*)">(.*?)<\/c:pt>/mg)||[]).forEach(function(pt) {
  		var q = pt.match(/<c:pt idx="(\d*?)"><c:v>(.*)<\/c:v><\/c:pt>/);
  		if(!q) return;
  		col[+q[1]] = +q[2];
  	});
  
  	/* 21.2.2.71 formatCode CT_Xstring */
  	var nf = unescapexml((data.match(/<c:formatCode>([\s\S]*?)<\/c:formatCode>/) || ["","General"])[1]);
  
  	return [col, nf];
  }
  
  /* 21.2 DrawingML - Charts */
  function parse_chart(data, name, opts, rels, wb, csheet) {
  	var cs = ((csheet || {"!type":"chart"}));
  	if(!data) return csheet;
  	/* 21.2.2.27 chart CT_Chart */
  
  	var C = 0, R = 0, col = "A";
  	var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
  
  	/* 21.2.2.120 numCache CT_NumData */
  	(data.match(/<c:numCache>[\s\S]*?<\/c:numCache>/gm)||[]).forEach(function(nc) {
  		var cache = parse_numCache(nc);
  		refguess.s.r = refguess.s.c = 0;
  		refguess.e.c = C;
  		col = encode_col(C);
  		cache[0].forEach(function(n,i) {
  			cs[col + encode_row(i)] = {t:'n', v:n, z:cache[1] };
  			R = i;
  		});
  		if(refguess.e.r < R) refguess.e.r = R;
  		++C;
  	});
  	if(C > 0) cs["!ref"] = encode_range(refguess);
  	return cs;
  }
  RELS.CS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet";
  
  var CS_XML_ROOT = writextag('chartsheet', null, {
  	'xmlns': XMLNS.main[0],
  	'xmlns:r': XMLNS.r
  });
  
  /* 18.3 Worksheets also covers Chartsheets */
  function parse_cs_xml(data, opts, idx, rels, wb) {
  	if(!data) return data;
  	/* 18.3.1.12 chartsheet CT_ChartSheet */
  	if(!rels) rels = {'!id':{}};
  	var s = {'!type':"chart", '!chart':null, '!rel':""};
  	var m;
  
  	/* 18.3.1.83 sheetPr CT_ChartsheetPr */
  	var sheetPr = data.match(sheetprregex);
  	if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);
  
  	/* 18.3.1.36 drawing CT_Drawing */
  	if((m = data.match(/drawing r:id="(.*?)"/))) s['!rel'] = m[1];
  
  	if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
  	return s;
  }
  function write_cs_xml(idx, opts, wb, rels) {
  	var o = [XML_HEADER, CS_XML_ROOT];
  	o[o.length] = writextag("drawing", null, {"r:id": "rId1"});
  	add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
  	if(o.length>2) { o[o.length] = ('</chartsheet>'); o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  
  /* [MS-XLSB] 2.4.331 BrtCsProp */
  function parse_BrtCsProp(data, length) {
  	data.l += 10;
  	var name = parse_XLWideString(data, length - 10);
  	return { name: name };
  }
  
  /* [MS-XLSB] 2.1.7.7 Chart Sheet */
  function parse_cs_bin(data, opts, idx, rels, wb) {
  	if(!data) return data;
  	if(!rels) rels = {'!id':{}};
  	var s = {'!type':"chart", '!chart':null, '!rel':""};
  	var state = [];
  	var pass = false;
  	recordhopper(data, function cs_parse(val, R_n, RT) {
  		switch(RT) {
  
  			case 0x0226: /* 'BrtDrawing' */
  				s['!rel'] = val; break;
  
  			case 0x028B: /* 'BrtCsProp' */
  				if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
  				if(val.name) wb.Sheets[idx].CodeName = val.name;
  				break;
  
  			case 0x0232: /* 'BrtBkHim' */
  			case 0x028C: /* 'BrtCsPageSetup' */
  			case 0x029D: /* 'BrtCsProtection' */
  			case 0x02A7: /* 'BrtCsProtectionIso' */
  			case 0x0227: /* 'BrtLegacyDrawing' */
  			case 0x0228: /* 'BrtLegacyDrawingHF' */
  			case 0x01DC: /* 'BrtMargins' */
  			case 0x0C00: /* 'BrtUid' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  			case 0x0025: /* 'BrtACBegin' */
  				state.push(R_n); break;
  			case 0x0026: /* 'BrtACEnd' */
  				state.pop(); break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
  				else if((R_n||"").indexOf("End") > 0) state.pop();
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	}, opts);
  
  	if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
  	return s;
  }
  function write_cs_bin() {
  	var ba = buf_array();
  	write_record(ba, "BrtBeginSheet");
  	/* [BrtCsProp] */
  	/* CSVIEWS */
  	/* [[BrtCsProtectionIso] BrtCsProtection] */
  	/* [USERCSVIEWS] */
  	/* [BrtMargins] */
  	/* [BrtCsPageSetup] */
  	/* [HEADERFOOTER] */
  	/* BrtDrawing */
  	/* [BrtLegacyDrawing] */
  	/* [BrtLegacyDrawingHF] */
  	/* [BrtBkHim] */
  	/* [WEBPUBITEMS] */
  	/* FRTCHARTSHEET */
  	write_record(ba, "BrtEndSheet");
  	return ba.end();
  }
  /* 18.2.28 (CT_WorkbookProtection) Defaults */
  var WBPropsDef = [
  	['allowRefreshQuery',           false, "bool"],
  	['autoCompressPictures',        true,  "bool"],
  	['backupFile',                  false, "bool"],
  	['checkCompatibility',          false, "bool"],
  	['CodeName',                    ''],
  	['date1904',                    false, "bool"],
  	['defaultThemeVersion',         0,      "int"],
  	['filterPrivacy',               false, "bool"],
  	['hidePivotFieldList',          false, "bool"],
  	['promptedSolutions',           false, "bool"],
  	['publishItems',                false, "bool"],
  	['refreshAllConnections',       false, "bool"],
  	['saveExternalLinkValues',      true,  "bool"],
  	['showBorderUnselectedTables',  true,  "bool"],
  	['showInkAnnotation',           true,  "bool"],
  	['showObjects',                 'all'],
  	['showPivotChartFilter',        false, "bool"],
  	['updateLinks', 'userSet']
  ];
  
  /* 18.2.30 (CT_BookView) Defaults */
  var WBViewDef = [
  	['activeTab',                   0,      "int"],
  	['autoFilterDateGrouping',      true,  "bool"],
  	['firstSheet',                  0,      "int"],
  	['minimized',                   false, "bool"],
  	['showHorizontalScroll',        true,  "bool"],
  	['showSheetTabs',               true,  "bool"],
  	['showVerticalScroll',          true,  "bool"],
  	['tabRatio',                    600,    "int"],
  	['visibility',                  'visible']
  	//window{Height,Width}, {x,y}Window
  ];
  
  /* 18.2.19 (CT_Sheet) Defaults */
  var SheetDef = [
  	//['state', 'visible']
  ];
  
  /* 18.2.2  (CT_CalcPr) Defaults */
  var CalcPrDef = [
  	['calcCompleted', 'true'],
  	['calcMode', 'auto'],
  	['calcOnSave', 'true'],
  	['concurrentCalc', 'true'],
  	['fullCalcOnLoad', 'false'],
  	['fullPrecision', 'true'],
  	['iterate', 'false'],
  	['iterateCount', '100'],
  	['iterateDelta', '0.001'],
  	['refMode', 'A1']
  ];
  
  /* 18.2.3 (CT_CustomWorkbookView) Defaults */
  /*var CustomWBViewDef = [
  	['autoUpdate', 'false'],
  	['changesSavedWin', 'false'],
  	['includeHiddenRowCol', 'true'],
  	['includePrintSettings', 'true'],
  	['maximized', 'false'],
  	['minimized', 'false'],
  	['onlySync', 'false'],
  	['personalView', 'false'],
  	['showComments', 'commIndicator'],
  	['showFormulaBar', 'true'],
  	['showHorizontalScroll', 'true'],
  	['showObjects', 'all'],
  	['showSheetTabs', 'true'],
  	['showStatusbar', 'true'],
  	['showVerticalScroll', 'true'],
  	['tabRatio', '600'],
  	['xWindow', '0'],
  	['yWindow', '0']
  ];*/
  
  function push_defaults_array(target, defaults) {
  	for(var j = 0; j != target.length; ++j) { var w = target[j];
  		for(var i=0; i != defaults.length; ++i) { var z = defaults[i];
  			if(w[z[0]] == null) w[z[0]] = z[1];
  			else switch(z[2]) {
  			case "bool": if(typeof w[z[0]] == "string") w[z[0]] = parsexmlbool(w[z[0]]); break;
  			case "int": if(typeof w[z[0]] == "string") w[z[0]] = parseInt(w[z[0]], 10); break;
  			}
  		}
  	}
  }
  function push_defaults(target, defaults) {
  	for(var i = 0; i != defaults.length; ++i) { var z = defaults[i];
  		if(target[z[0]] == null) target[z[0]] = z[1];
  		else switch(z[2]) {
  			case "bool": if(typeof target[z[0]] == "string") target[z[0]] = parsexmlbool(target[z[0]]); break;
  			case "int": if(typeof target[z[0]] == "string") target[z[0]] = parseInt(target[z[0]], 10); break;
  		}
  	}
  }
  
  function parse_wb_defaults(wb) {
  	push_defaults(wb.WBProps, WBPropsDef);
  	push_defaults(wb.CalcPr, CalcPrDef);
  
  	push_defaults_array(wb.WBView, WBViewDef);
  	push_defaults_array(wb.Sheets, SheetDef);
  
  	_ssfopts.date1904 = parsexmlbool(wb.WBProps.date1904);
  }
  
  function safe1904(wb) {
  	/* TODO: store date1904 somewhere else */
  	if(!wb.Workbook) return "false";
  	if(!wb.Workbook.WBProps) return "false";
  	return parsexmlbool(wb.Workbook.WBProps.date1904) ? "true" : "false";
  }
  
  var badchars = "][*?\/\\".split("");
  function check_ws_name(n, safe) {
  	if(n.length > 31) { if(safe) return false; throw new Error("Sheet names cannot exceed 31 chars"); }
  	var _good = true;
  	badchars.forEach(function(c) {
  		if(n.indexOf(c) == -1) return;
  		if(!safe) throw new Error("Sheet name cannot contain : \\ / ? * [ ]");
  		_good = false;
  	});
  	return _good;
  }
  function check_wb_names(N, S, codes) {
  	N.forEach(function(n,i) {
  		check_ws_name(n);
  		for(var j = 0; j < i; ++j) if(n == N[j]) throw new Error("Duplicate Sheet Name: " + n);
  		if(codes) {
  			var cn = (S && S[i] && S[i].CodeName) || n;
  			if(cn.charCodeAt(0) == 95 && cn.length > 22) throw new Error("Bad Code Name: Worksheet" + cn);
  		}
  	});
  }
  function check_wb(wb) {
  	if(!wb || !wb.SheetNames || !wb.Sheets) throw new Error("Invalid Workbook");
  	if(!wb.SheetNames.length) throw new Error("Workbook is empty");
  	var Sheets = (wb.Workbook && wb.Workbook.Sheets) || [];
  	check_wb_names(wb.SheetNames, Sheets, !!wb.vbaraw);
  	for(var i = 0; i < wb.SheetNames.length; ++i) check_ws(wb.Sheets[wb.SheetNames[i]], wb.SheetNames[i], i);
  	/* TODO: validate workbook */
  }
  /* 18.2 Workbook */
  var wbnsregex = /<\w+:workbook/;
  function parse_wb_xml(data, opts) {
  	if(!data) throw new Error("Could not find file");
  	var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, Names:[], xmlns: "" };
  	var pass = false, xmlns = "xmlns";
  	var dname = {}, dnstart = 0;
  	data.replace(tagregex, function xml_wb(x, idx) {
  		var y = parsexmltag(x);
  		switch(strip_ns(y[0])) {
  			case '<?xml': break;
  
  			/* 18.2.27 workbook CT_Workbook 1 */
  			case '<workbook':
  				if(x.match(wbnsregex)) xmlns = "xmlns" + x.match(/<(\w+):/)[1];
  				wb.xmlns = y[xmlns];
  				break;
  			case '</workbook>': break;
  
  			/* 18.2.13 fileVersion CT_FileVersion ? */
  			case '<fileVersion': delete y[0]; wb.AppVersion = y; break;
  			case '<fileVersion/>': case '</fileVersion>': break;
  
  			/* 18.2.12 fileSharing CT_FileSharing ? */
  			case '<fileSharing': case '<fileSharing/>': break;
  
  			/* 18.2.28 workbookPr CT_WorkbookPr ? */
  			case '<workbookPr':
  			case '<workbookPr/>':
  				WBPropsDef.forEach(function(w) {
  					if(y[w[0]] == null) return;
  					switch(w[2]) {
  						case "bool": wb.WBProps[w[0]] = parsexmlbool(y[w[0]]); break;
  						case "int": wb.WBProps[w[0]] = parseInt(y[w[0]], 10); break;
  						default: wb.WBProps[w[0]] = y[w[0]];
  					}
  				});
  				if(y.codeName) wb.WBProps.CodeName = y.codeName;
  				break;
  			case '</workbookPr>': break;
  
  			/* 18.2.29 workbookProtection CT_WorkbookProtection ? */
  			case '<workbookProtection': break;
  			case '<workbookProtection/>': break;
  
  			/* 18.2.1  bookViews CT_BookViews ? */
  			case '<bookViews': case '<bookViews>': case '</bookViews>': break;
  			/* 18.2.30   workbookView CT_BookView + */
  			case '<workbookView': case '<workbookView/>': delete y[0]; wb.WBView.push(y); break;
  			case '</workbookView>': break;
  
  			/* 18.2.20 sheets CT_Sheets 1 */
  			case '<sheets': case '<sheets>': case '</sheets>': break; // aggregate sheet
  			/* 18.2.19   sheet CT_Sheet + */
  			case '<sheet':
  				switch(y.state) {
  					case "hidden": y.Hidden = 1; break;
  					case "veryHidden": y.Hidden = 2; break;
  					default: y.Hidden = 0;
  				}
  				delete y.state;
  				y.name = unescapexml(utf8read(y.name));
  				delete y[0]; wb.Sheets.push(y); break;
  			case '</sheet>': break;
  
  			/* 18.2.15 functionGroups CT_FunctionGroups ? */
  			case '<functionGroups': case '<functionGroups/>': break;
  			/* 18.2.14   functionGroup CT_FunctionGroup + */
  			case '<functionGroup': break;
  
  			/* 18.2.9  externalReferences CT_ExternalReferences ? */
  			case '<externalReferences': case '</externalReferences>': case '<externalReferences>': break;
  			/* 18.2.8    externalReference CT_ExternalReference + */
  			case '<externalReference': break;
  
  			/* 18.2.6  definedNames CT_DefinedNames ? */
  			case '<definedNames/>': break;
  			case '<definedNames>': case '<definedNames': pass=true; break;
  			case '</definedNames>': pass=false; break;
  			/* 18.2.5    definedName CT_DefinedName + */
  			case '<definedName': {
  				dname = {};
  				dname.Name = utf8read(y.name);
  				if(y.comment) dname.Comment = y.comment;
  				if(y.localSheetId) dname.Sheet = +y.localSheetId;
  				dnstart = idx + x.length;
  			}	break;
  			case '</definedName>': {
  				dname.Ref = unescapexml(utf8read(data.slice(dnstart, idx)));
  				wb.Names.push(dname);
  			} break;
  			case '<definedName/>': break;
  
  			/* 18.2.2  calcPr CT_CalcPr ? */
  			case '<calcPr': delete y[0]; wb.CalcPr = y; break;
  			case '<calcPr/>': delete y[0]; wb.CalcPr = y; break;
  			case '</calcPr>': break;
  
  			/* 18.2.16 oleSize CT_OleSize ? (ref required) */
  			case '<oleSize': break;
  
  			/* 18.2.4  customWorkbookViews CT_CustomWorkbookViews ? */
  			case '<customWorkbookViews>': case '</customWorkbookViews>': case '<customWorkbookViews': break;
  			/* 18.2.3    customWorkbookView CT_CustomWorkbookView + */
  			case '<customWorkbookView': case '</customWorkbookView>': break;
  
  			/* 18.2.18 pivotCaches CT_PivotCaches ? */
  			case '<pivotCaches>': case '</pivotCaches>': case '<pivotCaches': break;
  			/* 18.2.17 pivotCache CT_PivotCache ? */
  			case '<pivotCache': break;
  
  			/* 18.2.21 smartTagPr CT_SmartTagPr ? */
  			case '<smartTagPr': case '<smartTagPr/>': break;
  
  			/* 18.2.23 smartTagTypes CT_SmartTagTypes ? */
  			case '<smartTagTypes': case '<smartTagTypes>': case '</smartTagTypes>': break;
  			/* 18.2.22   smartTagType CT_SmartTagType ? */
  			case '<smartTagType': break;
  
  			/* 18.2.24 webPublishing CT_WebPublishing ? */
  			case '<webPublishing': case '<webPublishing/>': break;
  
  			/* 18.2.11 fileRecoveryPr CT_FileRecoveryPr ? */
  			case '<fileRecoveryPr': case '<fileRecoveryPr/>': break;
  
  			/* 18.2.26 webPublishObjects CT_WebPublishObjects ? */
  			case '<webPublishObjects>': case '<webPublishObjects': case '</webPublishObjects>': break;
  			/* 18.2.25 webPublishObject CT_WebPublishObject ? */
  			case '<webPublishObject': break;
  
  			/* 18.2.10 extLst CT_ExtensionList ? */
  			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
  			/* 18.2.7    ext CT_Extension + */
  			case '<ext': pass=true; break; //TODO: check with versions of excel
  			case '</ext>': pass=false; break;
  
  			/* Others */
  			case '<ArchID': break;
  			case '<AlternateContent':
  			case '<AlternateContent>': pass=true; break;
  			case '</AlternateContent>': pass=false; break;
  
  			/* TODO */
  			case '<revisionPtr': break;
  
  			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in workbook');
  		}
  		return x;
  	});
  	if(XMLNS.main.indexOf(wb.xmlns) === -1) throw new Error("Unknown Namespace: " + wb.xmlns);
  
  	parse_wb_defaults(wb);
  
  	return wb;
  }
  
  var WB_XML_ROOT = writextag('workbook', null, {
  	'xmlns': XMLNS.main[0],
  	//'xmlns:mx': XMLNS.mx,
  	//'xmlns:s': XMLNS.main[0],
  	'xmlns:r': XMLNS.r
  });
  
  function write_wb_xml(wb) {
  	var o = [XML_HEADER];
  	o[o.length] = WB_XML_ROOT;
  
  	var write_names = (wb.Workbook && (wb.Workbook.Names||[]).length > 0);
  
  	/* fileVersion */
  	/* fileSharing */
  
  	var workbookPr = ({codeName:"ThisWorkbook"});
  	if(wb.Workbook && wb.Workbook.WBProps) {
  		WBPropsDef.forEach(function(x) {
  if((wb.Workbook.WBProps[x[0]]) == null) return;
  			if((wb.Workbook.WBProps[x[0]]) == x[1]) return;
  			workbookPr[x[0]] = (wb.Workbook.WBProps[x[0]]);
  		});
  if(wb.Workbook.WBProps.CodeName) { workbookPr.codeName = wb.Workbook.WBProps.CodeName; delete workbookPr.CodeName; }
  	}
  	o[o.length] = (writextag('workbookPr', null, workbookPr));
  
  	/* workbookProtection */
  	/* bookViews */
  
  	o[o.length] = "<sheets>";
  	var sheets = wb.Workbook && wb.Workbook.Sheets || [];
  	for(var i = 0; i != wb.SheetNames.length; ++i) {
  		var sht = ({name:escapexml(wb.SheetNames[i].slice(0,31))});
  		sht.sheetId = ""+(i+1);
  		sht["r:id"] = "rId"+(i+1);
  		if(sheets[i]) switch(sheets[i].Hidden) {
  			case 1: sht.state = "hidden"; break;
  			case 2: sht.state = "veryHidden"; break;
  		}
  		o[o.length] = (writextag('sheet',null,sht));
  	}
  	o[o.length] = "</sheets>";
  
  	/* functionGroups */
  	/* externalReferences */
  
  	if(write_names) {
  		o[o.length] = "<definedNames>";
  		if(wb.Workbook && wb.Workbook.Names) wb.Workbook.Names.forEach(function(n) {
  			var d = {name:n.Name};
  			if(n.Comment) d.comment = n.Comment;
  			if(n.Sheet != null) d.localSheetId = ""+n.Sheet;
  			if(!n.Ref) return;
  			o[o.length] = writextag('definedName', String(n.Ref), d);
  		});
  		o[o.length] = "</definedNames>";
  	}
  
  	/* calcPr */
  	/* oleSize */
  	/* customWorkbookViews */
  	/* pivotCaches */
  	/* smartTagPr */
  	/* smartTagTypes */
  	/* webPublishing */
  	/* fileRecoveryPr */
  	/* webPublishObjects */
  	/* extLst */
  
  	if(o.length>2){ o[o.length] = '</workbook>'; o[1]=o[1].replace("/>",">"); }
  	return o.join("");
  }
  /* [MS-XLSB] 2.4.304 BrtBundleSh */
  function parse_BrtBundleSh(data, length) {
  	var z = {};
  	z.Hidden = data.read_shift(4); //hsState ST_SheetState
  	z.iTabID = data.read_shift(4);
  	z.strRelID = parse_RelID(data,length-8);
  	z.name = parse_XLWideString(data);
  	return z;
  }
  function write_BrtBundleSh(data, o) {
  	if(!o) o = new_buf(127);
  	o.write_shift(4, data.Hidden);
  	o.write_shift(4, data.iTabID);
  	write_RelID(data.strRelID, o);
  	write_XLWideString(data.name.slice(0,31), o);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.815 BrtWbProp */
  function parse_BrtWbProp(data, length) {
  	var o = ({});
  	var flags = data.read_shift(4);
  	o.defaultThemeVersion = data.read_shift(4);
  	var strName = (length > 8) ? parse_XLWideString(data) : "";
  	if(strName.length > 0) o.CodeName = strName;
  	o.autoCompressPictures = !!(flags & 0x10000);
  	o.backupFile = !!(flags & 0x40);
  	o.checkCompatibility = !!(flags & 0x1000);
  	o.date1904 = !!(flags & 0x01);
  	o.filterPrivacy = !!(flags & 0x08);
  	o.hidePivotFieldList = !!(flags & 0x400);
  	o.promptedSolutions = !!(flags & 0x10);
  	o.publishItems = !!(flags & 0x800);
  	o.refreshAllConnections = !!(flags & 0x40000);
  	o.saveExternalLinkValues = !!(flags & 0x80);
  	o.showBorderUnselectedTables = !!(flags & 0x04);
  	o.showInkAnnotation = !!(flags & 0x20);
  	o.showObjects = ["all", "placeholders", "none"][(flags >> 13) & 0x03];
  	o.showPivotChartFilter = !!(flags & 0x8000);
  	o.updateLinks = ["userSet", "never", "always"][(flags >> 8) & 0x03];
  	return o;
  }
  function write_BrtWbProp(data, o) {
  	if(!o) o = new_buf(72);
  	var flags = 0;
  	if(data) {
  		/* TODO: mirror parse_BrtWbProp fields */
  		if(data.filterPrivacy) flags |= 0x08;
  	}
  	o.write_shift(4, flags);
  	o.write_shift(4, 0);
  	write_XLSBCodeName(data && data.CodeName || "ThisWorkbook", o);
  	return o.slice(0, o.l);
  }
  
  function parse_BrtFRTArchID$(data, length) {
  	var o = {};
  	data.read_shift(4);
  	o.ArchID = data.read_shift(4);
  	data.l += length - 8;
  	return o;
  }
  
  /* [MS-XLSB] 2.4.687 BrtName */
  function parse_BrtName(data, length, opts) {
  	var end = data.l + length;
  	data.l += 4; //var flags = data.read_shift(4);
  	data.l += 1; //var chKey = data.read_shift(1);
  	var itab = data.read_shift(4);
  	var name = parse_XLNameWideString(data);
  	var formula = parse_XLSBNameParsedFormula(data, 0, opts);
  	var comment = parse_XLNullableWideString(data);
  	//if(0 /* fProc */) {
  		// unusedstring1: XLNullableWideString
  		// description: XLNullableWideString
  		// helpTopic: XLNullableWideString
  		// unusedstring2: XLNullableWideString
  	//}
  	data.l = end;
  	var out = ({Name:name, Ptg:formula});
  	if(itab < 0xFFFFFFF) out.Sheet = itab;
  	if(comment) out.Comment = comment;
  	return out;
  }
  
  /* [MS-XLSB] 2.1.7.61 Workbook */
  function parse_wb_bin(data, opts) {
  	var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, xmlns: "" };
  	var pass = false;
  
  	if(!opts) opts = {};
  	opts.biff = 12;
  
  	var Names = [];
  	var supbooks = ([[]]);
  	supbooks.SheetNames = [];
  	supbooks.XTI = [];
  
  	recordhopper(data, function hopper_wb(val, R_n, RT) {
  		switch(RT) {
  			case 0x009C: /* 'BrtBundleSh' */
  				supbooks.SheetNames.push(val.name);
  				wb.Sheets.push(val); break;
  
  			case 0x0099: /* 'BrtWbProp' */
  				wb.WBProps = val; break;
  
  			case 0x0027: /* 'BrtName' */
  				if(val.Sheet != null) opts.SID = val.Sheet;
  				val.Ref = stringify_formula(val.Ptg, null, null, supbooks, opts);
  				delete opts.SID;
  				delete val.Ptg;
  				Names.push(val);
  				break;
  			case 0x040C: /* 'BrtNameExt' */ break;
  
  			case 0x0165: /* 'BrtSupSelf' */
  			case 0x0166: /* 'BrtSupSame' */
  			case 0x0163: /* 'BrtSupBookSrc' */
  			case 0x029B: /* 'BrtSupAddin' */
  				if(!supbooks[0].length) supbooks[0] = [RT, val];
  				else supbooks.push([RT, val]);
  				supbooks[supbooks.length - 1].XTI = [];
  				break;
  			case 0x016A: /* 'BrtExternSheet' */
  				if(supbooks.length === 0) { supbooks[0] = []; supbooks[0].XTI = []; }
  				supbooks[supbooks.length - 1].XTI = supbooks[supbooks.length - 1].XTI.concat(val);
  				supbooks.XTI = supbooks.XTI.concat(val);
  				break;
  			case 0x0169: /* 'BrtPlaceholderName' */
  				break;
  
  			/* case 'BrtModelTimeGroupingCalcCol' */
  			case 0x0C00: /* 'BrtUid' */
  			case 0x0C01: /* 'BrtRevisionPtr' */
  			case 0x0817: /* 'BrtAbsPath15' */
  			case 0x0216: /* 'BrtBookProtection' */
  			case 0x02A5: /* 'BrtBookProtectionIso' */
  			case 0x009E: /* 'BrtBookView' */
  			case 0x009D: /* 'BrtCalcProp' */
  			case 0x0262: /* 'BrtCrashRecErr' */
  			case 0x0802: /* 'BrtDecoupledPivotCacheID' */
  			case 0x009B: /* 'BrtFileRecover' */
  			case 0x0224: /* 'BrtFileSharing' */
  			case 0x02A4: /* 'BrtFileSharingIso' */
  			case 0x0080: /* 'BrtFileVersion' */
  			case 0x0299: /* 'BrtFnGroup' */
  			case 0x0850: /* 'BrtModelRelationship' */
  			case 0x084D: /* 'BrtModelTable' */
  			case 0x0225: /* 'BrtOleSize' */
  			case 0x0805: /* 'BrtPivotTableRef' */
  			case 0x0254: /* 'BrtSmartTagType' */
  			case 0x081C: /* 'BrtTableSlicerCacheID' */
  			case 0x081B: /* 'BrtTableSlicerCacheIDs' */
  			case 0x0822: /* 'BrtTimelineCachePivotCacheID' */
  			case 0x018D: /* 'BrtUserBookView' */
  			case 0x009A: /* 'BrtWbFactoid' */
  			case 0x045D: /* 'BrtWbProp14' */
  			case 0x0229: /* 'BrtWebOpt' */
  			case 0x082B: /* 'BrtWorkBookPr15' */
  				break;
  
  			case 0x0023: /* 'BrtFRTBegin' */
  				pass = true; break;
  			case 0x0024: /* 'BrtFRTEnd' */
  				pass = false; break;
  			case 0x0025: /* 'BrtACBegin' */ break;
  			case 0x0026: /* 'BrtACEnd' */ break;
  
  			case 0x0010: /* 'BrtFRTArchID$' */ break;
  
  			default:
  				if((R_n||"").indexOf("Begin") > 0){/* empty */}
  				else if((R_n||"").indexOf("End") > 0){/* empty */}
  				else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
  		}
  	}, opts);
  
  	parse_wb_defaults(wb);
  
  	// $FlowIgnore
  	wb.Names = Names;
  
  	(wb).supbooks = supbooks;
  	return wb;
  }
  
  function write_BUNDLESHS(ba, wb) {
  	write_record(ba, "BrtBeginBundleShs");
  	for(var idx = 0; idx != wb.SheetNames.length; ++idx) {
  		var viz = wb.Workbook && wb.Workbook.Sheets && wb.Workbook.Sheets[idx] && wb.Workbook.Sheets[idx].Hidden || 0;
  		var d = { Hidden: viz, iTabID: idx+1, strRelID: 'rId' + (idx+1), name: wb.SheetNames[idx] };
  		write_record(ba, "BrtBundleSh", write_BrtBundleSh(d));
  	}
  	write_record(ba, "BrtEndBundleShs");
  }
  
  /* [MS-XLSB] 2.4.649 BrtFileVersion */
  function write_BrtFileVersion(data, o) {
  	if(!o) o = new_buf(127);
  	for(var i = 0; i != 4; ++i) o.write_shift(4, 0);
  	write_XLWideString("SheetJS", o);
  	write_XLWideString(XLSX.version, o);
  	write_XLWideString(XLSX.version, o);
  	write_XLWideString("7262", o);
  	o.length = o.l;
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  /* [MS-XLSB] 2.4.301 BrtBookView */
  function write_BrtBookView(idx, o) {
  	if(!o) o = new_buf(29);
  	o.write_shift(-4, 0);
  	o.write_shift(-4, 460);
  	o.write_shift(4,  28800);
  	o.write_shift(4,  17600);
  	o.write_shift(4,  500);
  	o.write_shift(4,  idx);
  	o.write_shift(4,  idx);
  	var flags = 0x78;
  	o.write_shift(1,  flags);
  	return o.length > o.l ? o.slice(0, o.l) : o;
  }
  
  function write_BOOKVIEWS(ba, wb) {
  	/* required if hidden tab appears before visible tab */
  	if(!wb.Workbook || !wb.Workbook.Sheets) return;
  	var sheets = wb.Workbook.Sheets;
  	var i = 0, vistab = -1, hidden = -1;
  	for(; i < sheets.length; ++i) {
  		if(!sheets[i] || !sheets[i].Hidden && vistab == -1) vistab = i;
  		else if(sheets[i].Hidden == 1 && hidden == -1) hidden = i;
  	}
  	if(hidden > vistab) return;
  	write_record(ba, "BrtBeginBookViews");
  	write_record(ba, "BrtBookView", write_BrtBookView(vistab));
  	/* 1*(BrtBookView *FRT) */
  	write_record(ba, "BrtEndBookViews");
  }
  
  /* [MS-XLSB] 2.4.305 BrtCalcProp */
  /*function write_BrtCalcProp(data, o) {
  	if(!o) o = new_buf(26);
  	o.write_shift(4,0); // force recalc
  	o.write_shift(4,1);
  	o.write_shift(4,0);
  	write_Xnum(0, o);
  	o.write_shift(-4, 1023);
  	o.write_shift(1, 0x33);
  	o.write_shift(1, 0x00);
  	return o;
  }*/
  
  /* [MS-XLSB] 2.4.646 BrtFileRecover */
  /*function write_BrtFileRecover(data, o) {
  	if(!o) o = new_buf(1);
  	o.write_shift(1,0);
  	return o;
  }*/
  
  /* [MS-XLSB] 2.1.7.61 Workbook */
  function write_wb_bin(wb, opts) {
  	var ba = buf_array();
  	write_record(ba, "BrtBeginBook");
  	write_record(ba, "BrtFileVersion", write_BrtFileVersion());
  	/* [[BrtFileSharingIso] BrtFileSharing] */
  	write_record(ba, "BrtWbProp", write_BrtWbProp(wb.Workbook && wb.Workbook.WBProps || null));
  	/* [ACABSPATH] */
  	/* [[BrtBookProtectionIso] BrtBookProtection] */
  	write_BOOKVIEWS(ba, wb, opts);
  	write_BUNDLESHS(ba, wb, opts);
  	/* [FNGROUP] */
  	/* [EXTERNALS] */
  	/* *BrtName */
  	/* write_record(ba, "BrtCalcProp", write_BrtCalcProp()); */
  	/* [BrtOleSize] */
  	/* *(BrtUserBookView *FRT) */
  	/* [PIVOTCACHEIDS] */
  	/* [BrtWbFactoid] */
  	/* [SMARTTAGTYPES] */
  	/* [BrtWebOpt] */
  	/* write_record(ba, "BrtFileRecover", write_BrtFileRecover()); */
  	/* [WEBPUBITEMS] */
  	/* [CRERRS] */
  	/* FRTWORKBOOK */
  	write_record(ba, "BrtEndBook");
  
  	return ba.end();
  }
  function parse_wb(data, name, opts) {
  	if(name.slice(-4)===".bin") return parse_wb_bin((data), opts);
  	return parse_wb_xml((data), opts);
  }
  
  function parse_ws(data, name, idx, opts, rels, wb, themes, styles) {
  	if(name.slice(-4)===".bin") return parse_ws_bin((data), opts, idx, rels, wb, themes, styles);
  	return parse_ws_xml((data), opts, idx, rels, wb, themes, styles);
  }
  
  function parse_cs(data, name, idx, opts, rels, wb, themes, styles) {
  	if(name.slice(-4)===".bin") return parse_cs_bin((data), opts, idx, rels, wb, themes, styles);
  	return parse_cs_xml((data), opts, idx, rels, wb, themes, styles);
  }
  
  function parse_ms(data, name, idx, opts, rels, wb, themes, styles) {
  	if(name.slice(-4)===".bin") return parse_ms_bin((data), opts, idx, rels, wb, themes, styles);
  	return parse_ms_xml((data), opts, idx, rels, wb, themes, styles);
  }
  
  function parse_ds(data, name, idx, opts, rels, wb, themes, styles) {
  	if(name.slice(-4)===".bin") return parse_ds_bin((data), opts, idx, rels, wb, themes, styles);
  	return parse_ds_xml((data), opts, idx, rels, wb, themes, styles);
  }
  
  function parse_sty(data, name, themes, opts) {
  	if(name.slice(-4)===".bin") return parse_sty_bin((data), themes, opts);
  	return parse_sty_xml((data), themes, opts);
  }
  
  function parse_theme(data, name, opts) {
  	return parse_theme_xml(data, opts);
  }
  
  function parse_sst(data, name, opts) {
  	if(name.slice(-4)===".bin") return parse_sst_bin((data), opts);
  	return parse_sst_xml((data), opts);
  }
  
  function parse_cmnt(data, name, opts) {
  	if(name.slice(-4)===".bin") return parse_comments_bin((data), opts);
  	return parse_comments_xml((data), opts);
  }
  
  function parse_cc(data, name, opts) {
  	if(name.slice(-4)===".bin") return parse_cc_bin((data), name, opts);
  	return parse_cc_xml((data), name, opts);
  }
  
  function parse_xlink(data, name, opts) {
  	if(name.slice(-4)===".bin") return parse_xlink_bin((data), name, opts);
  	return parse_xlink_xml((data), name, opts);
  }
  
  function write_wb(wb, name, opts) {
  	return (name.slice(-4)===".bin" ? write_wb_bin : write_wb_xml)(wb, opts);
  }
  
  function write_ws(data, name, opts, wb, rels) {
  	return (name.slice(-4)===".bin" ? write_ws_bin : write_ws_xml)(data, opts, wb, rels);
  }
  
  // eslint-disable-next-line no-unused-vars
  function write_cs(data, name, opts, wb, rels) {
  	return (name.slice(-4)===".bin" ? write_cs_bin : write_cs_xml)(data, opts, wb, rels);
  }
  
  function write_sty(data, name, opts) {
  	return (name.slice(-4)===".bin" ? write_sty_bin : write_sty_xml)(data, opts);
  }
  
  function write_sst(data, name, opts) {
  	return (name.slice(-4)===".bin" ? write_sst_bin : write_sst_xml)(data, opts);
  }
  
  function write_cmnt(data, name, opts) {
  	return (name.slice(-4)===".bin" ? write_comments_bin : write_comments_xml)(data, opts);
  }
  /*
  function write_cc(data, name:string, opts) {
  	return (name.slice(-4)===".bin" ? write_cc_bin : write_cc_xml)(data, opts);
  }
  */
  var attregexg2=/([\w:]+)=((?:")([^"]*)(?:")|(?:')([^']*)(?:'))/g;
  var attregex2=/([\w:]+)=((?:")(?:[^"]*)(?:")|(?:')(?:[^']*)(?:'))/;
  var _chr = function(c) { return String.fromCharCode(c); };
  function xlml_parsexmltag(tag, skip_root) {
  	var words = tag.split(/\s+/);
  	var z = ([]); if(!skip_root) z[0] = words[0];
  	if(words.length === 1) return z;
  	var m = tag.match(attregexg2), y, j, w, i;
  	if(m) for(i = 0; i != m.length; ++i) {
  		y = m[i].match(attregex2);
  if((j=y[1].indexOf(":")) === -1) z[y[1]] = y[2].slice(1,y[2].length-1);
  		else {
  			if(y[1].slice(0,6) === "xmlns:") w = "xmlns"+y[1].slice(6);
  			else w = y[1].slice(j+1);
  			z[w] = y[2].slice(1,y[2].length-1);
  		}
  	}
  	return z;
  }
  function xlml_parsexmltagobj(tag) {
  	var words = tag.split(/\s+/);
  	var z = {};
  	if(words.length === 1) return z;
  	var m = tag.match(attregexg2), y, j, w, i;
  	if(m) for(i = 0; i != m.length; ++i) {
  		y = m[i].match(attregex2);
  if((j=y[1].indexOf(":")) === -1) z[y[1]] = y[2].slice(1,y[2].length-1);
  		else {
  			if(y[1].slice(0,6) === "xmlns:") w = "xmlns"+y[1].slice(6);
  			else w = y[1].slice(j+1);
  			z[w] = y[2].slice(1,y[2].length-1);
  		}
  	}
  	return z;
  }
  
  // ----
  
  function xlml_format(format, value) {
  	var fmt = XLMLFormatMap[format] || unescapexml(format);
  	if(fmt === "General") return SSF._general(value);
  	return SSF.format(fmt, value);
  }
  
  function xlml_set_custprop(Custprops, key, cp, val) {
  	var oval = val;
  	switch((cp[0].match(/dt:dt="([\w.]+)"/)||["",""])[1]) {
  		case "boolean": oval = parsexmlbool(val); break;
  		case "i2": case "int": oval = parseInt(val, 10); break;
  		case "r4": case "float": oval = parseFloat(val); break;
  		case "date": case "dateTime.tz": oval = parseDate(val); break;
  		case "i8": case "string": case "fixed": case "uuid": case "bin.base64": break;
  		default: throw new Error("bad custprop:" + cp[0]);
  	}
  	Custprops[unescapexml(key)] = oval;
  }
  
  function safe_format_xlml(cell, nf, o) {
  	if(cell.t === 'z') return;
  	if(!o || o.cellText !== false) try {
  		if(cell.t === 'e') { cell.w = cell.w || BErr[cell.v]; }
  		else if(nf === "General") {
  			if(cell.t === 'n') {
  				if((cell.v|0) === cell.v) cell.w = SSF._general_int(cell.v);
  				else cell.w = SSF._general_num(cell.v);
  			}
  			else cell.w = SSF._general(cell.v);
  		}
  		else cell.w = xlml_format(nf||"General", cell.v);
  	} catch(e) { if(o.WTF) throw e; }
  	try {
  		var z = XLMLFormatMap[nf]||nf||"General";
  		if(o.cellNF) cell.z = z;
  		if(o.cellDates && cell.t == 'n' && SSF.is_date(z)) {
  			var _d = SSF.parse_date_code(cell.v); if(_d) { cell.t = 'd'; cell.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
  		}
  	} catch(e) { if(o.WTF) throw e; }
  }
  
  function process_style_xlml(styles, stag, opts) {
  	if(opts.cellStyles) {
  		if(stag.Interior) {
  			var I = stag.Interior;
  			if(I.Pattern) I.patternType = XLMLPatternTypeMap[I.Pattern] || I.Pattern;
  		}
  	}
  	styles[stag.ID] = stag;
  }
  
  /* TODO: there must exist some form of OSP-blessed spec */
  function parse_xlml_data(xml, ss, data, cell, base, styles, csty, row, arrayf, o) {
  	var nf = "General", sid = cell.StyleID, S = {}; o = o || {};
  	var interiors = [];
  	var i = 0;
  	if(sid === undefined && row) sid = row.StyleID;
  	if(sid === undefined && csty) sid = csty.StyleID;
  	while(styles[sid] !== undefined) {
  		if(styles[sid].nf) nf = styles[sid].nf;
  		if(styles[sid].Interior) interiors.push(styles[sid].Interior);
  		if(!styles[sid].Parent) break;
  		sid = styles[sid].Parent;
  	}
  	switch(data.Type) {
  		case 'Boolean':
  			cell.t = 'b';
  			cell.v = parsexmlbool(xml);
  			break;
  		case 'String':
  			cell.t = 's'; cell.r = xlml_fixstr(unescapexml(xml));
  			cell.v = xml.indexOf("<") > -1 ? unescapexml(ss) : cell.r;
  			break;
  		case 'DateTime':
  			if(xml.slice(-1) != "Z") xml += "Z";
  			cell.v = (parseDate(xml) - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
  			if(cell.v !== cell.v) cell.v = unescapexml(xml);
  			else if(cell.v<60) cell.v = cell.v -1;
  			if(!nf || nf == "General") nf = "yyyy-mm-dd";
  			/* falls through */
  		case 'Number':
  			if(cell.v === undefined) cell.v=+xml;
  			if(!cell.t) cell.t = 'n';
  			break;
  		case 'Error': cell.t = 'e'; cell.v = RBErr[xml]; if(o.cellText !== false) cell.w = xml; break;
  		default: cell.t = 's'; cell.v = xlml_fixstr(ss||xml); break;
  	}
  	safe_format_xlml(cell, nf, o);
  	if(o.cellFormula !== false) {
  		if(cell.Formula) {
  			var fstr = unescapexml(cell.Formula);
  			/* strictly speaking, the leading = is required but some writers omit */
  			if(fstr.charCodeAt(0) == 61 /* = */) fstr = fstr.slice(1);
  			cell.f = rc_to_a1(fstr, base);
  			delete cell.Formula;
  			if(cell.ArrayRange == "RC") cell.F = rc_to_a1("RC:RC", base);
  			else if(cell.ArrayRange) {
  				cell.F = rc_to_a1(cell.ArrayRange, base);
  				arrayf.push([safe_decode_range(cell.F), cell.F]);
  			}
  		} else {
  			for(i = 0; i < arrayf.length; ++i)
  				if(base.r >= arrayf[i][0].s.r && base.r <= arrayf[i][0].e.r)
  					if(base.c >= arrayf[i][0].s.c && base.c <= arrayf[i][0].e.c)
  						cell.F = arrayf[i][1];
  		}
  	}
  	if(o.cellStyles) {
  		interiors.forEach(function(x) {
  			if(!S.patternType && x.patternType) S.patternType = x.patternType;
  		});
  		cell.s = S;
  	}
  	if(cell.StyleID !== undefined) cell.ixfe = cell.StyleID;
  }
  
  function xlml_clean_comment(comment) {
  	comment.t = comment.v || "";
  	comment.t = comment.t.replace(/\r\n/g,"\n").replace(/\r/g,"\n");
  	comment.v = comment.w = comment.ixfe = undefined;
  }
  
  function xlml_normalize(d) {
  	if(has_buf && Buffer.isBuffer(d)) return d.toString('utf8');
  	if(typeof d === 'string') return d;
  	/* duktape */
  	if(typeof Uint8Array !== 'undefined' && d instanceof Uint8Array) return utf8read(a2s(ab2a(d)));
  	throw new Error("Bad input format: expected Buffer or string");
  }
  
  /* TODO: Everything */
  /* UOS uses CJK in tags */
  var xlmlregex = /<(\/?)([^\s?>!\/:]*:|)([^\s?>:\/]+)[^>]*>/mg;
  //var xlmlregex = /<(\/?)([a-z0-9]*:|)(\w+)[^>]*>/mg;
  function parse_xlml_xml(d, _opts) {
  	var opts = _opts || {};
  	make_ssf(SSF);
  	var str = debom(xlml_normalize(d));
  	if(opts.type == 'binary' || opts.type == 'array' || opts.type == 'base64') {
  		if(typeof cptable !== 'undefined') str = cptable.utils.decode(65001, char_codes(str));
  		else str = utf8read(str);
  	}
  	var opening = str.slice(0, 1024).toLowerCase(), ishtml = false;
  	if(opening.indexOf("<?xml") == -1) ["html", "table", "head", "meta", "script", "style", "div"].forEach(function(tag) { if(opening.indexOf("<" + tag) >= 0) ishtml = true; });
  	if(ishtml) return HTML_.to_workbook(str, opts);
  	var Rn;
  	var state = [], tmp;
  	if(DENSE != null && opts.dense == null) opts.dense = DENSE;
  	var sheets = {}, sheetnames = [], cursheet = (opts.dense ? [] : {}), sheetname = "";
  	var table = {}, cell = ({}), row = {};// eslint-disable-line no-unused-vars
  	var dtag = xlml_parsexmltag('<Data ss:Type="String">'), didx = 0;
  	var c = 0, r = 0;
  	var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
  	var styles = {}, stag = {};
  	var ss = "", fidx = 0;
  	var merges = [];
  	var Props = {}, Custprops = {}, pidx = 0, cp = [];
  	var comments = [], comment = ({});
  	var cstys = [], csty, seencol = false;
  	var arrayf = [];
  	var rowinfo = [], rowobj = {}, cc = 0, rr = 0;
  	var Workbook = ({ Sheets:[], WBProps:{date1904:false} }), wsprops = {};
  	xlmlregex.lastIndex = 0;
  	str = str.replace(/<!--([\s\S]*?)-->/mg,"");
  	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
  		case 'Data':
  			if(state[state.length-1][1]) break;
  			if(Rn[1]==='/') parse_xlml_data(str.slice(didx, Rn.index), ss, dtag, state[state.length-1][0]=="Comment"?comment:cell, {c:c,r:r}, styles, cstys[c], row, arrayf, opts);
  			else { ss = ""; dtag = xlml_parsexmltag(Rn[0]); didx = Rn.index + Rn[0].length; }
  			break;
  		case 'Cell':
  			if(Rn[1]==='/'){
  				if(comments.length > 0) cell.c = comments;
  				if((!opts.sheetRows || opts.sheetRows > r) && cell.v !== undefined) {
  					if(opts.dense) {
  						if(!cursheet[r]) cursheet[r] = [];
  						cursheet[r][c] = cell;
  					} else cursheet[encode_col(c) + encode_row(r)] = cell;
  				}
  				if(cell.HRef) {
  					cell.l = ({Target:cell.HRef});
  					if(cell.HRefScreenTip) cell.l.Tooltip = cell.HRefScreenTip;
  					delete cell.HRef; delete cell.HRefScreenTip;
  				}
  				if(cell.MergeAcross || cell.MergeDown) {
  					cc = c + (parseInt(cell.MergeAcross,10)|0);
  					rr = r + (parseInt(cell.MergeDown,10)|0);
  					merges.push({s:{c:c,r:r},e:{c:cc,r:rr}});
  				}
  				if(!opts.sheetStubs) { if(cell.MergeAcross) c = cc + 1; else ++c; }
  				else if(cell.MergeAcross || cell.MergeDown) {
  for(var cma = c; cma <= cc; ++cma) {
  						for(var cmd = r; cmd <= rr; ++cmd) {
  							if(cma > c || cmd > r) {
  								if(opts.dense) {
  									if(!cursheet[cmd]) cursheet[cmd] = [];
  									cursheet[cmd][cma] = {t:'z'};
  								} else cursheet[encode_col(cma) + encode_row(cmd)] = {t:'z'};
  							}
  						}
  					}
  					c = cc + 1;
  				}
  				else ++c;
  			} else {
  				cell = xlml_parsexmltagobj(Rn[0]);
  				if(cell.Index) c = +cell.Index - 1;
  				if(c < refguess.s.c) refguess.s.c = c;
  				if(c > refguess.e.c) refguess.e.c = c;
  				if(Rn[0].slice(-2) === "/>") ++c;
  				comments = [];
  			}
  			break;
  		case 'Row':
  			if(Rn[1]==='/' || Rn[0].slice(-2) === "/>") {
  				if(r < refguess.s.r) refguess.s.r = r;
  				if(r > refguess.e.r) refguess.e.r = r;
  				if(Rn[0].slice(-2) === "/>") {
  					row = xlml_parsexmltag(Rn[0]);
  					if(row.Index) r = +row.Index - 1;
  				}
  				c = 0; ++r;
  			} else {
  				row = xlml_parsexmltag(Rn[0]);
  				if(row.Index) r = +row.Index - 1;
  				rowobj = {};
  				if(row.AutoFitHeight == "0" || row.Height) {
  					rowobj.hpx = parseInt(row.Height, 10); rowobj.hpt = px2pt(rowobj.hpx);
  					rowinfo[r] = rowobj;
  				}
  				if(row.Hidden == "1") { rowobj.hidden = true; rowinfo[r] = rowobj; }
  			}
  			break;
  		case 'Worksheet': /* TODO: read range from FullRows/FullColumns */
  			if(Rn[1]==='/'){
  				if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));
  				sheetnames.push(sheetname);
  				if(refguess.s.r <= refguess.e.r && refguess.s.c <= refguess.e.c) {
  					cursheet["!ref"] = encode_range(refguess);
  					if(opts.sheetRows && opts.sheetRows <= refguess.e.r) {
  						cursheet["!fullref"] = cursheet["!ref"];
  						refguess.e.r = opts.sheetRows - 1;
  						cursheet["!ref"] = encode_range(refguess);
  					}
  				}
  				if(merges.length) cursheet["!merges"] = merges;
  				if(cstys.length > 0) cursheet["!cols"] = cstys;
  				if(rowinfo.length > 0) cursheet["!rows"] = rowinfo;
  				sheets[sheetname] = cursheet;
  			} else {
  				refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
  				r = c = 0;
  				state.push([Rn[3], false]);
  				tmp = xlml_parsexmltag(Rn[0]);
  				sheetname = unescapexml(tmp.Name);
  				cursheet = (opts.dense ? [] : {});
  				merges = [];
  				arrayf = [];
  				rowinfo = [];
  				wsprops = {name:sheetname, Hidden:0};
  				Workbook.Sheets.push(wsprops);
  			}
  			break;
  		case 'Table':
  			if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
  			else if(Rn[0].slice(-2) == "/>") break;
  			else {
  				table = xlml_parsexmltag(Rn[0]);
  				state.push([Rn[3], false]);
  				cstys = []; seencol = false;
  			}
  			break;
  
  		case 'Style':
  			if(Rn[1]==='/') process_style_xlml(styles, stag, opts);
  			else stag = xlml_parsexmltag(Rn[0]);
  			break;
  
  		case 'NumberFormat':
  			stag.nf = unescapexml(xlml_parsexmltag(Rn[0]).Format || "General");
  			if(XLMLFormatMap[stag.nf]) stag.nf = XLMLFormatMap[stag.nf];
  			for(var ssfidx = 0; ssfidx != 0x188; ++ssfidx) if(SSF._table[ssfidx] == stag.nf) break;
  			if(ssfidx == 0x188) for(ssfidx = 0x39; ssfidx != 0x188; ++ssfidx) if(SSF._table[ssfidx] == null) { SSF.load(stag.nf, ssfidx); break; }
  			break;
  
  		case 'Column':
  			if(state[state.length-1][0] !== 'Table') break;
  			csty = xlml_parsexmltag(Rn[0]);
  			if(csty.Hidden) { csty.hidden = true; delete csty.Hidden; }
  			if(csty.Width) csty.wpx = parseInt(csty.Width, 10);
  			if(!seencol && csty.wpx > 10) {
  				seencol = true; MDW = DEF_MDW; //find_mdw_wpx(csty.wpx);
  				for(var _col = 0; _col < cstys.length; ++_col) if(cstys[_col]) process_col(cstys[_col]);
  			}
  			if(seencol) process_col(csty);
  			cstys[(csty.Index-1||cstys.length)] = csty;
  			for(var i = 0; i < +csty.Span; ++i) cstys[cstys.length] = dup(csty);
  			break;
  
  		case 'NamedRange':
  			if(!Workbook.Names) Workbook.Names = [];
  			var _NamedRange = parsexmltag(Rn[0]);
  			var _DefinedName = ({
  				Name: _NamedRange.Name,
  				Ref: rc_to_a1(_NamedRange.RefersTo.slice(1), {r:0, c:0})
  			});
  			if(Workbook.Sheets.length>0) _DefinedName.Sheet=Workbook.Sheets.length-1;
  Workbook.Names.push(_DefinedName);
  			break;
  
  		case 'NamedCell': break;
  		case 'B': break;
  		case 'I': break;
  		case 'U': break;
  		case 'S': break;
  		case 'Sub': break;
  		case 'Sup': break;
  		case 'Span': break;
  		case 'Border': break;
  		case 'Alignment': break;
  		case 'Borders': break;
  		case 'Font':
  			if(Rn[0].slice(-2) === "/>") break;
  			else if(Rn[1]==="/") ss += str.slice(fidx, Rn.index);
  			else fidx = Rn.index + Rn[0].length;
  			break;
  		case 'Interior':
  			if(!opts.cellStyles) break;
  			stag.Interior = xlml_parsexmltag(Rn[0]);
  			break;
  		case 'Protection': break;
  
  		case 'Author':
  		case 'Title':
  		case 'Description':
  		case 'Created':
  		case 'Keywords':
  		case 'Subject':
  		case 'Category':
  		case 'Company':
  		case 'LastAuthor':
  		case 'LastSaved':
  		case 'LastPrinted':
  		case 'Version':
  		case 'Revision':
  		case 'TotalTime':
  		case 'HyperlinkBase':
  		case 'Manager':
  		case 'ContentStatus':
  		case 'Identifier':
  		case 'Language':
  		case 'AppName':
  			if(Rn[0].slice(-2) === "/>") break;
  			else if(Rn[1]==="/") xlml_set_prop(Props, Rn[3], str.slice(pidx, Rn.index));
  			else pidx = Rn.index + Rn[0].length;
  			break;
  		case 'Paragraphs': break;
  
  		case 'Styles':
  		case 'Workbook':
  			if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
  			else state.push([Rn[3], false]);
  			break;
  
  		case 'Comment':
  			if(Rn[1]==='/'){
  				if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));
  				xlml_clean_comment(comment);
  				comments.push(comment);
  			} else {
  				state.push([Rn[3], false]);
  				tmp = xlml_parsexmltag(Rn[0]);
  				comment = ({a:tmp.Author});
  			}
  			break;
  
  		case 'AutoFilter':
  			if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
  			else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
  				var AutoFilter = xlml_parsexmltag(Rn[0]);
  				cursheet['!autofilter'] = { ref:rc_to_a1(AutoFilter.Range).replace(/\$/g,"") };
  				state.push([Rn[3], true]);
  			}
  			break;
  
  		case 'Name': break;
  
  		case 'ComponentOptions':
  		case 'DocumentProperties':
  		case 'CustomDocumentProperties':
  		case 'OfficeDocumentSettings':
  		case 'PivotTable':
  		case 'PivotCache':
  		case 'Names':
  		case 'MapInfo':
  		case 'PageBreaks':
  		case 'QueryTable':
  		case 'DataValidation':
  		case 'Sorting':
  		case 'Schema':
  		case 'data':
  		case 'ConditionalFormatting':
  		case 'SmartTagType':
  		case 'SmartTags':
  		case 'ExcelWorkbook':
  		case 'WorkbookOptions':
  		case 'WorksheetOptions':
  			if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
  			else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
  			break;
  
  		default:
  			/* FODS file root is <office:document> */
  			if(state.length == 0 && Rn[3] == "document") return parse_fods(str, opts);
  			/* UOS file root is <uof:UOF> */
  			if(state.length == 0 && Rn[3] == "UOF") return parse_fods(str, opts);
  
  			var seen = true;
  			switch(state[state.length-1][0]) {
  				/* OfficeDocumentSettings */
  				case 'OfficeDocumentSettings': switch(Rn[3]) {
  					case 'AllowPNG': break;
  					case 'RemovePersonalInformation': break;
  					case 'DownloadComponents': break;
  					case 'LocationOfComponents': break;
  					case 'Colors': break;
  					case 'Color': break;
  					case 'Index': break;
  					case 'RGB': break;
  					case 'PixelsPerInch': break; // TODO: set PPI
  					case 'TargetScreenSize': break;
  					case 'ReadOnlyRecommended': break;
  					default: seen = false;
  				} break;
  
  				/* ComponentOptions */
  				case 'ComponentOptions': switch(Rn[3]) {
  					case 'Toolbar': break;
  					case 'HideOfficeLogo': break;
  					case 'SpreadsheetAutoFit': break;
  					case 'Label': break;
  					case 'Caption': break;
  					case 'MaxHeight': break;
  					case 'MaxWidth': break;
  					case 'NextSheetNumber': break;
  					default: seen = false;
  				} break;
  
  				/* ExcelWorkbook */
  				case 'ExcelWorkbook': switch(Rn[3]) {
  					case 'Date1904':
  Workbook.WBProps.date1904 = true;
  						break;
  					case 'WindowHeight': break;
  					case 'WindowWidth': break;
  					case 'WindowTopX': break;
  					case 'WindowTopY': break;
  					case 'TabRatio': break;
  					case 'ProtectStructure': break;
  					case 'ProtectWindows': break;
  					case 'ActiveSheet': break;
  					case 'DisplayInkNotes': break;
  					case 'FirstVisibleSheet': break;
  					case 'SupBook': break;
  					case 'SheetName': break;
  					case 'SheetIndex': break;
  					case 'SheetIndexFirst': break;
  					case 'SheetIndexLast': break;
  					case 'Dll': break;
  					case 'AcceptLabelsInFormulas': break;
  					case 'DoNotSaveLinkValues': break;
  					case 'Iteration': break;
  					case 'MaxIterations': break;
  					case 'MaxChange': break;
  					case 'Path': break;
  					case 'Xct': break;
  					case 'Count': break;
  					case 'SelectedSheets': break;
  					case 'Calculation': break;
  					case 'Uncalced': break;
  					case 'StartupPrompt': break;
  					case 'Crn': break;
  					case 'ExternName': break;
  					case 'Formula': break;
  					case 'ColFirst': break;
  					case 'ColLast': break;
  					case 'WantAdvise': break;
  					case 'Boolean': break;
  					case 'Error': break;
  					case 'Text': break;
  					case 'OLE': break;
  					case 'NoAutoRecover': break;
  					case 'PublishObjects': break;
  					case 'DoNotCalculateBeforeSave': break;
  					case 'Number': break;
  					case 'RefModeR1C1': break;
  					case 'EmbedSaveSmartTags': break;
  					default: seen = false;
  				} break;
  
  				/* WorkbookOptions */
  				case 'WorkbookOptions': switch(Rn[3]) {
  					case 'OWCVersion': break;
  					case 'Height': break;
  					case 'Width': break;
  					default: seen = false;
  				} break;
  
  				/* WorksheetOptions */
  				case 'WorksheetOptions': switch(Rn[3]) {
  					case 'Visible':
  						if(Rn[0].slice(-2) === "/>"){/* empty */}
  						else if(Rn[1]==="/") switch(str.slice(pidx, Rn.index)) {
  							case "SheetHidden": wsprops.Hidden = 1; break;
  							case "SheetVeryHidden": wsprops.Hidden = 2; break;
  						}
  						else pidx = Rn.index + Rn[0].length;
  						break;
  					case 'Header':
  						if(!cursheet['!margins']) default_margins(cursheet['!margins']={}, 'xlml');
  						cursheet['!margins'].header = parsexmltag(Rn[0]).Margin;
  						break;
  					case 'Footer':
  						if(!cursheet['!margins']) default_margins(cursheet['!margins']={}, 'xlml');
  						cursheet['!margins'].footer = parsexmltag(Rn[0]).Margin;
  						break;
  					case 'PageMargins':
  						var pagemargins = parsexmltag(Rn[0]);
  						if(!cursheet['!margins']) default_margins(cursheet['!margins']={},'xlml');
  						if(pagemargins.Top) cursheet['!margins'].top = pagemargins.Top;
  						if(pagemargins.Left) cursheet['!margins'].left = pagemargins.Left;
  						if(pagemargins.Right) cursheet['!margins'].right = pagemargins.Right;
  						if(pagemargins.Bottom) cursheet['!margins'].bottom = pagemargins.Bottom;
  						break;
  					case 'DisplayRightToLeft':
  						if(!Workbook.Views) Workbook.Views = [];
  						if(!Workbook.Views[0]) Workbook.Views[0] = {};
  						Workbook.Views[0].RTL = true;
  						break;
  
  					case 'Unsynced': break;
  					case 'Print': break;
  					case 'Panes': break;
  					case 'Scale': break;
  					case 'Pane': break;
  					case 'Number': break;
  					case 'Layout': break;
  					case 'PageSetup': break;
  					case 'Selected': break;
  					case 'ProtectObjects': break;
  					case 'EnableSelection': break;
  					case 'ProtectScenarios': break;
  					case 'ValidPrinterInfo': break;
  					case 'HorizontalResolution': break;
  					case 'VerticalResolution': break;
  					case 'NumberofCopies': break;
  					case 'ActiveRow': break;
  					case 'ActiveCol': break;
  					case 'ActivePane': break;
  					case 'TopRowVisible': break;
  					case 'TopRowBottomPane': break;
  					case 'LeftColumnVisible': break;
  					case 'LeftColumnRightPane': break;
  					case 'FitToPage': break;
  					case 'RangeSelection': break;
  					case 'PaperSizeIndex': break;
  					case 'PageLayoutZoom': break;
  					case 'PageBreakZoom': break;
  					case 'FilterOn': break;
  					case 'DoNotDisplayGridlines': break;
  					case 'SplitHorizontal': break;
  					case 'SplitVertical': break;
  					case 'FreezePanes': break;
  					case 'FrozenNoSplit': break;
  					case 'FitWidth': break;
  					case 'FitHeight': break;
  					case 'CommentsLayout': break;
  					case 'Zoom': break;
  					case 'LeftToRight': break;
  					case 'Gridlines': break;
  					case 'AllowSort': break;
  					case 'AllowFilter': break;
  					case 'AllowInsertRows': break;
  					case 'AllowDeleteRows': break;
  					case 'AllowInsertCols': break;
  					case 'AllowDeleteCols': break;
  					case 'AllowInsertHyperlinks': break;
  					case 'AllowFormatCells': break;
  					case 'AllowSizeCols': break;
  					case 'AllowSizeRows': break;
  					case 'NoSummaryRowsBelowDetail': break;
  					case 'TabColorIndex': break;
  					case 'DoNotDisplayHeadings': break;
  					case 'ShowPageLayoutZoom': break;
  					case 'NoSummaryColumnsRightDetail': break;
  					case 'BlackAndWhite': break;
  					case 'DoNotDisplayZeros': break;
  					case 'DisplayPageBreak': break;
  					case 'RowColHeadings': break;
  					case 'DoNotDisplayOutline': break;
  					case 'NoOrientation': break;
  					case 'AllowUsePivotTables': break;
  					case 'ZeroHeight': break;
  					case 'ViewableRange': break;
  					case 'Selection': break;
  					case 'ProtectContents': break;
  					default: seen = false;
  				} break;
  
  				/* PivotTable */
  				case 'PivotTable': case 'PivotCache': switch(Rn[3]) {
  					case 'ImmediateItemsOnDrop': break;
  					case 'ShowPageMultipleItemLabel': break;
  					case 'CompactRowIndent': break;
  					case 'Location': break;
  					case 'PivotField': break;
  					case 'Orientation': break;
  					case 'LayoutForm': break;
  					case 'LayoutSubtotalLocation': break;
  					case 'LayoutCompactRow': break;
  					case 'Position': break;
  					case 'PivotItem': break;
  					case 'DataType': break;
  					case 'DataField': break;
  					case 'SourceName': break;
  					case 'ParentField': break;
  					case 'PTLineItems': break;
  					case 'PTLineItem': break;
  					case 'CountOfSameItems': break;
  					case 'Item': break;
  					case 'ItemType': break;
  					case 'PTSource': break;
  					case 'CacheIndex': break;
  					case 'ConsolidationReference': break;
  					case 'FileName': break;
  					case 'Reference': break;
  					case 'NoColumnGrand': break;
  					case 'NoRowGrand': break;
  					case 'BlankLineAfterItems': break;
  					case 'Hidden': break;
  					case 'Subtotal': break;
  					case 'BaseField': break;
  					case 'MapChildItems': break;
  					case 'Function': break;
  					case 'RefreshOnFileOpen': break;
  					case 'PrintSetTitles': break;
  					case 'MergeLabels': break;
  					case 'DefaultVersion': break;
  					case 'RefreshName': break;
  					case 'RefreshDate': break;
  					case 'RefreshDateCopy': break;
  					case 'VersionLastRefresh': break;
  					case 'VersionLastUpdate': break;
  					case 'VersionUpdateableMin': break;
  					case 'VersionRefreshableMin': break;
  					case 'Calculation': break;
  					default: seen = false;
  				} break;
  
  				/* PageBreaks */
  				case 'PageBreaks': switch(Rn[3]) {
  					case 'ColBreaks': break;
  					case 'ColBreak': break;
  					case 'RowBreaks': break;
  					case 'RowBreak': break;
  					case 'ColStart': break;
  					case 'ColEnd': break;
  					case 'RowEnd': break;
  					default: seen = false;
  				} break;
  
  				/* AutoFilter */
  				case 'AutoFilter': switch(Rn[3]) {
  					case 'AutoFilterColumn': break;
  					case 'AutoFilterCondition': break;
  					case 'AutoFilterAnd': break;
  					case 'AutoFilterOr': break;
  					default: seen = false;
  				} break;
  
  				/* QueryTable */
  				case 'QueryTable': switch(Rn[3]) {
  					case 'Id': break;
  					case 'AutoFormatFont': break;
  					case 'AutoFormatPattern': break;
  					case 'QuerySource': break;
  					case 'QueryType': break;
  					case 'EnableRedirections': break;
  					case 'RefreshedInXl9': break;
  					case 'URLString': break;
  					case 'HTMLTables': break;
  					case 'Connection': break;
  					case 'CommandText': break;
  					case 'RefreshInfo': break;
  					case 'NoTitles': break;
  					case 'NextId': break;
  					case 'ColumnInfo': break;
  					case 'OverwriteCells': break;
  					case 'DoNotPromptForFile': break;
  					case 'TextWizardSettings': break;
  					case 'Source': break;
  					case 'Number': break;
  					case 'Decimal': break;
  					case 'ThousandSeparator': break;
  					case 'TrailingMinusNumbers': break;
  					case 'FormatSettings': break;
  					case 'FieldType': break;
  					case 'Delimiters': break;
  					case 'Tab': break;
  					case 'Comma': break;
  					case 'AutoFormatName': break;
  					case 'VersionLastEdit': break;
  					case 'VersionLastRefresh': break;
  					default: seen = false;
  				} break;
  
  				case 'Sorting':
  				case 'ConditionalFormatting':
  				case 'DataValidation':
  				switch(Rn[3]) {
  					case 'Range': break;
  					case 'Type': break;
  					case 'Min': break;
  					case 'Max': break;
  					case 'Sort': break;
  					case 'Descending': break;
  					case 'Order': break;
  					case 'CaseSensitive': break;
  					case 'Value': break;
  					case 'ErrorStyle': break;
  					case 'ErrorMessage': break;
  					case 'ErrorTitle': break;
  					case 'CellRangeList': break;
  					case 'InputMessage': break;
  					case 'InputTitle': break;
  					case 'ComboHide': break;
  					case 'InputHide': break;
  					case 'Condition': break;
  					case 'Qualifier': break;
  					case 'UseBlank': break;
  					case 'Value1': break;
  					case 'Value2': break;
  					case 'Format': break;
  					default: seen = false;
  				} break;
  
  				/* MapInfo (schema) */
  				case 'MapInfo': case 'Schema': case 'data': switch(Rn[3]) {
  					case 'Map': break;
  					case 'Entry': break;
  					case 'Range': break;
  					case 'XPath': break;
  					case 'Field': break;
  					case 'XSDType': break;
  					case 'FilterOn': break;
  					case 'Aggregate': break;
  					case 'ElementType': break;
  					case 'AttributeType': break;
  				/* These are from xsd (XML Schema Definition) */
  					case 'schema':
  					case 'element':
  					case 'complexType':
  					case 'datatype':
  					case 'all':
  					case 'attribute':
  					case 'extends': break;
  
  					case 'row': break;
  					default: seen = false;
  				} break;
  
  				/* SmartTags (can be anything) */
  				case 'SmartTags': break;
  
  				default: seen = false; break;
  			}
  			if(seen) break;
  			/* CustomDocumentProperties */
  			if(!state[state.length-1][1]) throw 'Unrecognized tag: ' + Rn[3] + "|" + state.join("|");
  			if(state[state.length-1][0]==='CustomDocumentProperties') {
  				if(Rn[0].slice(-2) === "/>") break;
  				else if(Rn[1]==="/") xlml_set_custprop(Custprops, Rn[3], cp, str.slice(pidx, Rn.index));
  				else { cp = Rn; pidx = Rn.index + Rn[0].length; }
  				break;
  			}
  			if(opts.WTF) throw 'Unrecognized tag: ' + Rn[3] + "|" + state.join("|");
  	}
  	var out = ({});
  	if(!opts.bookSheets && !opts.bookProps) out.Sheets = sheets;
  	out.SheetNames = sheetnames;
  	out.Workbook = Workbook;
  	out.SSF = SSF.get_table();
  	out.Props = Props;
  	out.Custprops = Custprops;
  	return out;
  }
  
  function parse_xlml(data, opts) {
  	fix_read_opts(opts=opts||{});
  	switch(opts.type||"base64") {
  		case "base64": return parse_xlml_xml(Base64.decode(data), opts);
  		case "binary": case "buffer": case "file": return parse_xlml_xml(data, opts);
  		case "array": return parse_xlml_xml(a2s(data), opts);
  	}
  }
  
  /* TODO */
  function write_props_xlml(wb, opts) {
  	var o = [];
  	/* DocumentProperties */
  	if(wb.Props) o.push(xlml_write_docprops(wb.Props, opts));
  	/* CustomDocumentProperties */
  	if(wb.Custprops) o.push(xlml_write_custprops(wb.Props, wb.Custprops, opts));
  	return o.join("");
  }
  /* TODO */
  function write_wb_xlml() {
  	/* OfficeDocumentSettings */
  	/* ExcelWorkbook */
  	return "";
  }
  /* TODO */
  function write_sty_xlml(wb, opts) {
  	/* Styles */
  	var styles = ['<Style ss:ID="Default" ss:Name="Normal"><NumberFormat/></Style>'];
  	opts.cellXfs.forEach(function(xf, id) {
  		var payload = [];
  		payload.push(writextag('NumberFormat', null, {"ss:Format": escapexml(SSF._table[xf.numFmtId])}));
  		styles.push(writextag('Style', payload.join(""), {"ss:ID": "s" + (21+id)}));
  	});
  	return writextag("Styles", styles.join(""));
  }
  function write_name_xlml(n) { return writextag("NamedRange", null, {"ss:Name": n.Name, "ss:RefersTo":"=" + a1_to_rc(n.Ref, {r:0,c:0})}); }
  function write_names_xlml(wb) {
  	if(!((wb||{}).Workbook||{}).Names) return "";
  var names = wb.Workbook.Names;
  	var out = [];
  	for(var i = 0; i < names.length; ++i) {
  		var n = names[i];
  		if(n.Sheet != null) continue;
  		if(n.Name.match(/^_xlfn\./)) continue;
  		out.push(write_name_xlml(n));
  	}
  	return writextag("Names", out.join(""));
  }
  function write_ws_xlml_names(ws, opts, idx, wb) {
  	if(!ws) return "";
  	if(!((wb||{}).Workbook||{}).Names) return "";
  var names = wb.Workbook.Names;
  	var out = [];
  	for(var i = 0; i < names.length; ++i) {
  		var n = names[i];
  		if(n.Sheet != idx) continue;
  		/*switch(n.Name) {
  			case "_": continue;
  		}*/
  		if(n.Name.match(/^_xlfn\./)) continue;
  		out.push(write_name_xlml(n));
  	}
  	return out.join("");
  }
  /* WorksheetOptions */
  function write_ws_xlml_wsopts(ws, opts, idx, wb) {
  	if(!ws) return "";
  	var o = [];
  	/* NOTE: spec technically allows any order, but stick with implied order */
  
  	/* FitToPage */
  	/* DoNotDisplayColHeaders */
  	/* DoNotDisplayRowHeaders */
  	/* ViewableRange */
  	/* Selection */
  	/* GridlineColor */
  	/* Name */
  	/* ExcelWorksheetType */
  	/* IntlMacro */
  	/* Unsynced */
  	/* Selected */
  	/* CodeName */
  
  	if(ws['!margins']) {
  		o.push("<PageSetup>");
  		if(ws['!margins'].header) o.push(writextag("Header", null, {'x:Margin':ws['!margins'].header}));
  		if(ws['!margins'].footer) o.push(writextag("Footer", null, {'x:Margin':ws['!margins'].footer}));
  		o.push(writextag("PageMargins", null, {
  			'x:Bottom': ws['!margins'].bottom || "0.75",
  			'x:Left': ws['!margins'].left || "0.7",
  			'x:Right': ws['!margins'].right || "0.7",
  			'x:Top': ws['!margins'].top || "0.75"
  		}));
  		o.push("</PageSetup>");
  	}
  
  	/* PageSetup */
  	/* DisplayPageBreak */
  	/* TransitionExpressionEvaluation */
  	/* TransitionFormulaEntry */
  	/* Print */
  	/* Zoom */
  	/* PageLayoutZoom */
  	/* PageBreakZoom */
  	/* ShowPageBreakZoom */
  	/* DefaultRowHeight */
  	/* DefaultColumnWidth */
  	/* StandardWidth */
  
  	if(wb && wb.Workbook && wb.Workbook.Sheets && wb.Workbook.Sheets[idx]) {
  		/* Visible */
  		if(wb.Workbook.Sheets[idx].Hidden) o.push(writextag("Visible", (wb.Workbook.Sheets[idx].Hidden == 1 ? "SheetHidden" : "SheetVeryHidden"), {}));
  		else {
  			/* Selected */
  			for(var i = 0; i < idx; ++i) if(wb.Workbook.Sheets[i] && !wb.Workbook.Sheets[i].Hidden) break;
  			if(i == idx) o.push("<Selected/>");
  		}
  	}
  
  	/* LeftColumnVisible */
  
  	if(((((wb||{}).Workbook||{}).Views||[])[0]||{}).RTL) o.push("<DisplayRightToLeft/>");
  
  	/* GridlineColorIndex */
  	/* DisplayFormulas */
  	/* DoNotDisplayGridlines */
  	/* DoNotDisplayHeadings */
  	/* DoNotDisplayOutline */
  	/* ApplyAutomaticOutlineStyles */
  	/* NoSummaryRowsBelowDetail */
  	/* NoSummaryColumnsRightDetail */
  	/* DoNotDisplayZeros */
  	/* ActiveRow */
  	/* ActiveColumn */
  	/* FilterOn */
  	/* RangeSelection */
  	/* TopRowVisible */
  	/* TopRowBottomPane */
  	/* LeftColumnRightPane */
  	/* ActivePane */
  	/* SplitHorizontal */
  	/* SplitVertical */
  	/* FreezePanes */
  	/* FrozenNoSplit */
  	/* TabColorIndex */
  	/* Panes */
  
  	/* NOTE: Password not supported in XLML Format */
  	if(ws['!protect']) {
  		o.push(writetag("ProtectContents", "True"));
  		if(ws['!protect'].objects) o.push(writetag("ProtectObjects", "True"));
  		if(ws['!protect'].scenarios) o.push(writetag("ProtectScenarios", "True"));
  		if(ws['!protect'].selectLockedCells != null && !ws['!protect'].selectLockedCells) o.push(writetag("EnableSelection", "NoSelection"));
  		else if(ws['!protect'].selectUnlockedCells != null && !ws['!protect'].selectUnlockedCells) o.push(writetag("EnableSelection", "UnlockedCells"));
  	[
  		[ "formatCells", "AllowFormatCells" ],
  		[ "formatColumns", "AllowSizeCols" ],
  		[ "formatRows", "AllowSizeRows" ],
  		[ "insertColumns", "AllowInsertCols" ],
  		[ "insertRows", "AllowInsertRows" ],
  		[ "insertHyperlinks", "AllowInsertHyperlinks" ],
  		[ "deleteColumns", "AllowDeleteCols" ],
  		[ "deleteRows", "AllowDeleteRows" ],
  		[ "sort", "AllowSort" ],
  		[ "autoFilter", "AllowFilter" ],
  		[ "pivotTables", "AllowUsePivotTables" ]
  	].forEach(function(x) { if(ws['!protect'][x[0]]) o.push("<"+x[1]+"/>"); });
  	}
  
  	if(o.length == 0) return "";
  	return writextag("WorksheetOptions", o.join(""), {xmlns:XLMLNS.x});
  }
  function write_ws_xlml_comment(comments) {
  	return comments.map(function(c) {
  		// TODO: formatted text
  		var t = xlml_unfixstr(c.t||"");
  		var d =writextag("ss:Data", t, {"xmlns":"http://www.w3.org/TR/REC-html40"});
  		return writextag("Comment", d, {"ss:Author":c.a});
  	}).join("");
  }
  function write_ws_xlml_cell(cell, ref, ws, opts, idx, wb, addr){
  	if(!cell || (cell.v == undefined && cell.f == undefined)) return "";
  
  	var attr = {};
  	if(cell.f) attr["ss:Formula"] = "=" + escapexml(a1_to_rc(cell.f, addr));
  	if(cell.F && cell.F.slice(0, ref.length) == ref) {
  		var end = decode_cell(cell.F.slice(ref.length + 1));
  		attr["ss:ArrayRange"] = "RC:R" + (end.r == addr.r ? "" : "[" + (end.r - addr.r) + "]") + "C" + (end.c == addr.c ? "" : "[" + (end.c - addr.c) + "]");
  	}
  
  	if(cell.l && cell.l.Target) {
  		attr["ss:HRef"] = escapexml(cell.l.Target);
  		if(cell.l.Tooltip) attr["x:HRefScreenTip"] = escapexml(cell.l.Tooltip);
  	}
  
  	if(ws['!merges']) {
  		var marr = ws['!merges'];
  		for(var mi = 0; mi != marr.length; ++mi) {
  			if(marr[mi].s.c != addr.c || marr[mi].s.r != addr.r) continue;
  			if(marr[mi].e.c > marr[mi].s.c) attr['ss:MergeAcross'] = marr[mi].e.c - marr[mi].s.c;
  			if(marr[mi].e.r > marr[mi].s.r) attr['ss:MergeDown'] = marr[mi].e.r - marr[mi].s.r;
  		}
  	}
  
  	var t = "", p = "";
  	switch(cell.t) {
  		case 'z': return "";
  		case 'n': t = 'Number'; p = String(cell.v); break;
  		case 'b': t = 'Boolean'; p = (cell.v ? "1" : "0"); break;
  		case 'e': t = 'Error'; p = BErr[cell.v]; break;
  		case 'd': t = 'DateTime'; p = new Date(cell.v).toISOString(); if(cell.z == null) cell.z = cell.z || SSF._table[14]; break;
  		case 's': t = 'String'; p = escapexlml(cell.v||""); break;
  	}
  	/* TODO: cell style */
  	var os = get_cell_style(opts.cellXfs, cell, opts);
  	attr["ss:StyleID"] = "s" + (21+os);
  	attr["ss:Index"] = addr.c + 1;
  	var _v = (cell.v != null ? p : "");
  	var m = '<Data ss:Type="' + t + '">' + _v + '</Data>';
  
  	if((cell.c||[]).length > 0) m += write_ws_xlml_comment(cell.c);
  
  	return writextag("Cell", m, attr);
  }
  function write_ws_xlml_row(R, row) {
  	var o = '<Row ss:Index="' + (R+1) + '"';
  	if(row) {
  		if(row.hpt && !row.hpx) row.hpx = pt2px(row.hpt);
  		if(row.hpx) o += ' ss:AutoFitHeight="0" ss:Height="' + row.hpx + '"';
  		if(row.hidden) o += ' ss:Hidden="1"';
  	}
  	return o + '>';
  }
  /* TODO */
  function write_ws_xlml_table(ws, opts, idx, wb) {
  	if(!ws['!ref']) return "";
  	var range = safe_decode_range(ws['!ref']);
  	var marr = ws['!merges'] || [], mi = 0;
  	var o = [];
  	if(ws['!cols']) ws['!cols'].forEach(function(n, i) {
  		process_col(n);
  		var w = !!n.width;
  		var p = col_obj_w(i, n);
  		var k = {"ss:Index":i+1};
  		if(w) k['ss:Width'] = width2px(p.width);
  		if(n.hidden) k['ss:Hidden']="1";
  		o.push(writextag("Column",null,k));
  	});
  	var dense = Array.isArray(ws);
  	for(var R = range.s.r; R <= range.e.r; ++R) {
  		var row = [write_ws_xlml_row(R, (ws['!rows']||[])[R])];
  		for(var C = range.s.c; C <= range.e.c; ++C) {
  			var skip = false;
  			for(mi = 0; mi != marr.length; ++mi) {
  				if(marr[mi].s.c > C) continue;
  				if(marr[mi].s.r > R) continue;
  				if(marr[mi].e.c < C) continue;
  				if(marr[mi].e.r < R) continue;
  				if(marr[mi].s.c != C || marr[mi].s.r != R) skip = true;
  				break;
  			}
  			if(skip) continue;
  			var addr = {r:R,c:C};
  			var ref = encode_cell(addr), cell = dense ? (ws[R]||[])[C] : ws[ref];
  			row.push(write_ws_xlml_cell(cell, ref, ws, opts, idx, wb, addr));
  		}
  		row.push("</Row>");
  		if(row.length > 2) o.push(row.join(""));
  	}
  	return o.join("");
  }
  function write_ws_xlml(idx, opts, wb) {
  	var o = [];
  	var s = wb.SheetNames[idx];
  	var ws = wb.Sheets[s];
  
  	var t = ws ? write_ws_xlml_names(ws, opts, idx, wb) : "";
  	if(t.length > 0) o.push("<Names>" + t + "</Names>");
  
  	/* Table */
  	t = ws ? write_ws_xlml_table(ws, opts, idx, wb) : "";
  	if(t.length > 0) o.push("<Table>" + t + "</Table>");
  
  	/* WorksheetOptions */
  	o.push(write_ws_xlml_wsopts(ws, opts, idx, wb));
  
  	return o.join("");
  }
  function write_xlml(wb, opts) {
  	if(!opts) opts = {};
  	if(!wb.SSF) wb.SSF = SSF.get_table();
  	if(wb.SSF) {
  		make_ssf(SSF); SSF.load_table(wb.SSF);
  		// $FlowIgnore
  		opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
  		opts.ssf = wb.SSF;
  		opts.cellXfs = [];
  		get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});
  	}
  	var d = [];
  	d.push(write_props_xlml(wb, opts));
  	d.push(write_wb_xlml(wb, opts));
  	d.push("");
  	d.push("");
  	for(var i = 0; i < wb.SheetNames.length; ++i)
  		d.push(writextag("Worksheet", write_ws_xlml(i, opts, wb), {"ss:Name":escapexml(wb.SheetNames[i])}));
  	d[2] = write_sty_xlml(wb, opts);
  	d[3] = write_names_xlml(wb, opts);
  	return XML_HEADER + writextag("Workbook", d.join(""), {
  		'xmlns':      XLMLNS.ss,
  		'xmlns:o':    XLMLNS.o,
  		'xmlns:x':    XLMLNS.x,
  		'xmlns:ss':   XLMLNS.ss,
  		'xmlns:dt':   XLMLNS.dt,
  		'xmlns:html': XLMLNS.html
  	});
  }
  /* [MS-OLEDS] 2.3.8 CompObjStream */
  function parse_compobj(obj) {
  	var v = {};
  	var o = obj.content;
  /* [MS-OLEDS] 2.3.7 CompObjHeader -- All fields MUST be ignored */
  	o.l = 28;
  
  	v.AnsiUserType = o.read_shift(0, "lpstr-ansi");
  	v.AnsiClipboardFormat = parse_ClipboardFormatOrAnsiString(o);
  
  	if(o.length - o.l <= 4) return v;
  
  	var m = o.read_shift(4);
  	if(m == 0 || m > 40) return v;
  	o.l-=4; v.Reserved1 = o.read_shift(0, "lpstr-ansi");
  
  	if(o.length - o.l <= 4) return v;
  	m = o.read_shift(4);
  	if(m !== 0x71b239f4) return v;
  	v.UnicodeClipboardFormat = parse_ClipboardFormatOrUnicodeString(o);
  
  	m = o.read_shift(4);
  	if(m == 0 || m > 40) return v;
  	o.l-=4; v.Reserved2 = o.read_shift(0, "lpwstr");
  }
  
  /*
  	Continue logic for:
  	- 2.4.58 Continue
  	- 2.4.59 ContinueBigName
  	- 2.4.60 ContinueFrt
  	- 2.4.61 ContinueFrt11
  	- 2.4.62 ContinueFrt12
  */
  function slurp(R, blob, length, opts) {
  	var l = length;
  	var bufs = [];
  	var d = blob.slice(blob.l,blob.l+l);
  	if(opts && opts.enc && opts.enc.insitu) switch(R.n) {
  	case 'BOF': case 'FilePass': case 'FileLock': case 'InterfaceHdr': case 'RRDInfo': case 'RRDHead': case 'UsrExcl': break;
  	default:
  		if(d.length === 0) break;
  		opts.enc.insitu(d);
  	}
  	bufs.push(d);
  	blob.l += l;
  	var next = (XLSRecordEnum[__readUInt16LE(blob,blob.l)]);
  	var start = 0;
  	while(next != null && next.n.slice(0,8) === 'Continue') {
  		l = __readUInt16LE(blob,blob.l+2);
  		start = blob.l + 4;
  		if(next.n == 'ContinueFrt') start += 4;
  		else if(next.n.slice(0,11) == 'ContinueFrt') start += 12;
  		bufs.push(blob.slice(start,blob.l+4+l));
  		blob.l += 4+l;
  		next = (XLSRecordEnum[__readUInt16LE(blob, blob.l)]);
  	}
  	var b = (bconcat(bufs));
  	prep_blob(b, 0);
  	var ll = 0; b.lens = [];
  	for(var j = 0; j < bufs.length; ++j) { b.lens.push(ll); ll += bufs[j].length; }
  	return R.f(b, b.length, opts);
  }
  
  function safe_format_xf(p, opts, date1904) {
  	if(p.t === 'z') return;
  	if(!p.XF) return;
  	var fmtid = 0;
  	try {
  		fmtid = p.z || p.XF.numFmtId || 0;
  		if(opts.cellNF) p.z = SSF._table[fmtid];
  	} catch(e) { if(opts.WTF) throw e; }
  	if(!opts || opts.cellText !== false) try {
  		if(p.t === 'e') { p.w = p.w || BErr[p.v]; }
  		else if(fmtid === 0 || fmtid == "General") {
  			if(p.t === 'n') {
  				if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
  				else p.w = SSF._general_num(p.v);
  			}
  			else p.w = SSF._general(p.v);
  		}
  		else p.w = SSF.format(fmtid,p.v, {date1904:!!date1904});
  	} catch(e) { if(opts.WTF) throw e; }
  	if(opts.cellDates && fmtid && p.t == 'n' && SSF.is_date(SSF._table[fmtid] || String(fmtid))) {
  		var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
  	}
  }
  
  function make_cell(val, ixfe, t) {
  	return ({v:val, ixfe:ixfe, t:t});
  }
  
  // 2.3.2
  function parse_workbook(blob, options) {
  	var wb = ({opts:{}});
  	var Sheets = {};
  	if(DENSE != null && options.dense == null) options.dense = DENSE;
  	var out = ((options.dense ? [] : {}));
  	var Directory = {};
  	var range = ({});
  	var last_formula = null;
  	var sst = ([]);
  	var cur_sheet = "";
  	var Preamble = {};
  	var lastcell, last_cell = "", cc, cmnt, rngC, rngR;
  	var sharedf = {};
  	var arrayf = [];
  	var temp_val;
  	var country;
  	var cell_valid = true;
  	var XFs = []; /* XF records */
  	var palette = [];
  	var Workbook = ({ Sheets:[], WBProps:{date1904:false}, Views:[{}] }), wsprops = {};
  	var get_rgb = function getrgb(icv) {
  		if(icv < 8) return XLSIcv[icv];
  		if(icv < 64) return palette[icv-8] || XLSIcv[icv];
  		return XLSIcv[icv];
  	};
  	var process_cell_style = function pcs(cell, line, options) {
  		var xfd = line.XF.data;
  		if(!xfd || !xfd.patternType || !options || !options.cellStyles) return;
  		line.s = ({});
  		line.s.patternType = xfd.patternType;
  		var t;
  		if((t = rgb2Hex(get_rgb(xfd.icvFore)))) { line.s.fgColor = {rgb:t}; }
  		if((t = rgb2Hex(get_rgb(xfd.icvBack)))) { line.s.bgColor = {rgb:t}; }
  	};
  	var addcell = function addcell(cell, line, options) {
  		if(file_depth > 1) return;
  		if(options.sheetRows && cell.r >= options.sheetRows) cell_valid = false;
  		if(!cell_valid) return;
  		if(options.cellStyles && line.XF && line.XF.data) process_cell_style(cell, line, options);
  		delete line.ixfe; delete line.XF;
  		lastcell = cell;
  		last_cell = encode_cell(cell);
  		if(range.s) {
  			if(cell.r < range.s.r) range.s.r = cell.r;
  			if(cell.c < range.s.c) range.s.c = cell.c;
  		}
  		if(range.e) {
  			if(cell.r + 1 > range.e.r) range.e.r = cell.r + 1;
  			if(cell.c + 1 > range.e.c) range.e.c = cell.c + 1;
  		}
  		if(options.cellFormula && line.f) {
  			for(var afi = 0; afi < arrayf.length; ++afi) {
  				if(arrayf[afi][0].s.c > cell.c || arrayf[afi][0].s.r > cell.r) continue;
  				if(arrayf[afi][0].e.c < cell.c || arrayf[afi][0].e.r < cell.r) continue;
  				line.F = encode_range(arrayf[afi][0]);
  				if(arrayf[afi][0].s.c != cell.c || arrayf[afi][0].s.r != cell.r) delete line.f;
  				if(line.f) line.f = "" + stringify_formula(arrayf[afi][1], range, cell, supbooks, opts);
  				break;
  			}
  		}
  		{
  			if(options.dense) {
  				if(!out[cell.r]) out[cell.r] = [];
  				out[cell.r][cell.c] = line;
  			} else out[last_cell] = line;
  		}
  	};
  	var opts = ({
  		enc: false, // encrypted
  		sbcch: 0, // cch in the preceding SupBook
  		snames: [], // sheetnames
  		sharedf: sharedf, // shared formulae by address
  		arrayf: arrayf, // array formulae array
  		rrtabid: [], // RRTabId
  		lastuser: "", // Last User from WriteAccess
  		biff: 8, // BIFF version
  		codepage: 0, // CP from CodePage record
  		winlocked: 0, // fLockWn from WinProtect
  		cellStyles: !!options && !!options.cellStyles,
  		WTF: !!options && !!options.wtf
  	});
  	if(options.password) opts.password = options.password;
  	var themes;
  	var merges = [];
  	var objects = [];
  	var colinfo = [], rowinfo = [];
  	// eslint-disable-next-line no-unused-vars
  	var defwidth = 0, defheight = 0; // twips / MDW respectively
  	var seencol = false;
  	var supbooks = ([]); // 1-indexed, will hold extern names
  	supbooks.SheetNames = opts.snames;
  	supbooks.sharedf = opts.sharedf;
  	supbooks.arrayf = opts.arrayf;
  	supbooks.names = [];
  	supbooks.XTI = [];
  	var last_Rn = '';
  	var file_depth = 0; /* TODO: make a real stack */
  	var BIFF2Fmt = 0, BIFF2FmtTable = [];
  	var FilterDatabases = []; /* TODO: sort out supbooks and process elsewhere */
  	var last_lbl;
  
  	/* explicit override for some broken writers */
  	opts.codepage = 1200;
  	set_cp(1200);
  	var seen_codepage = false;
  	while(blob.l < blob.length - 1) {
  		var s = blob.l;
  		var RecordType = blob.read_shift(2);
  		if(RecordType === 0 && last_Rn === 'EOF') break;
  		var length = (blob.l === blob.length ? 0 : blob.read_shift(2));
  		var R = XLSRecordEnum[RecordType];
  		//console.log(RecordType.toString(16), RecordType, R, blob.l, length, blob.length);
  		//if(!R) console.log(blob.slice(blob.l, blob.l + length));
  		if(R && R.f) {
  			if(options.bookSheets) {
  				if(last_Rn === 'BoundSheet8' && R.n !== 'BoundSheet8') break;
  			}
  			last_Rn = R.n;
  			if(R.r === 2 || R.r == 12) {
  				var rt = blob.read_shift(2); length -= 2;
  				if(!opts.enc && rt !== RecordType && (((rt&0xFF)<<8)|(rt>>8)) !== RecordType) throw new Error("rt mismatch: " + rt + "!=" + RecordType);
  				if(R.r == 12){ blob.l += 10; length -= 10; } // skip FRT
  			}
  			//console.error(R,blob.l,length,blob.length);
  			var val;
  			if(R.n === 'EOF') val = R.f(blob, length, opts);
  			else val = slurp(R, blob, length, opts);
  			var Rn = R.n;
  			if(file_depth == 0 && Rn != 'BOF') continue;
  			/* nested switch statements to workaround V8 128 limit */
  			switch(Rn) {
  				/* Workbook Options */
  				case 'Date1904':
  wb.opts.Date1904 = Workbook.WBProps.date1904 = val; break;
  				case 'WriteProtect': wb.opts.WriteProtect = true; break;
  				case 'FilePass':
  					if(!opts.enc) blob.l = 0;
  					opts.enc = val;
  					if(!options.password) throw new Error("File is password-protected");
  					if(val.valid == null) throw new Error("Encryption scheme unsupported");
  					if(!val.valid) throw new Error("Password is incorrect");
  					break;
  				case 'WriteAccess': opts.lastuser = val; break;
  				case 'FileSharing': break; //TODO
  				case 'CodePage':
  					/* overrides based on test cases */
  					switch(val) {
  						case 0x5212: val =  1200; break;
  						case 0x8000: val = 10000; break;
  						case 0x8001: val =  1252; break;
  					}
  					set_cp(opts.codepage = val);
  					seen_codepage = true;
  					break;
  				case 'RRTabId': opts.rrtabid = val; break;
  				case 'WinProtect': opts.winlocked = val; break;
  				case 'Template': break; // TODO
  				case 'BookBool': break; // TODO
  				case 'UsesELFs': break;
  				case 'MTRSettings': break;
  				case 'RefreshAll':
  				case 'CalcCount':
  				case 'CalcDelta':
  				case 'CalcIter':
  				case 'CalcMode':
  				case 'CalcPrecision':
  				case 'CalcSaveRecalc':
  					wb.opts[Rn] = val; break;
  				case 'CalcRefMode': opts.CalcRefMode = val; break; // TODO: implement R1C1
  				case 'Uncalced': break;
  				case 'ForceFullCalculation': wb.opts.FullCalc = val; break;
  				case 'WsBool':
  					if(val.fDialog) out["!type"] = "dialog";
  					break; // TODO
  				case 'XF': XFs.push(val); break;
  				case 'ExtSST': break; // TODO
  				case 'BookExt': break; // TODO
  				case 'RichTextStream': break;
  				case 'BkHim': break;
  
  				case 'SupBook':
  					supbooks.push([val]);
  					supbooks[supbooks.length-1].XTI = [];
  					break;
  				case 'ExternName':
  					supbooks[supbooks.length-1].push(val);
  					break;
  				case 'Index': break; // TODO
  				case 'Lbl':
  					last_lbl = ({
  						Name: val.Name,
  						Ref: stringify_formula(val.rgce,range,null,supbooks,opts)
  					});
  					if(val.itab > 0) last_lbl.Sheet = val.itab - 1;
  					supbooks.names.push(last_lbl);
  					if(!supbooks[0]) { supbooks[0] = []; supbooks[0].XTI = []; }
  					supbooks[supbooks.length-1].push(val);
  					if(val.Name == "_xlnm._FilterDatabase" && val.itab > 0)
  						if(val.rgce && val.rgce[0] && val.rgce[0][0] && val.rgce[0][0][0] == 'PtgArea3d')
  							FilterDatabases[val.itab - 1] = { ref: encode_range(val.rgce[0][0][1][2]) };
  					break;
  				case 'ExternCount': opts.ExternCount = val; break;
  				case 'ExternSheet':
  					if(supbooks.length == 0) { supbooks[0] = []; supbooks[0].XTI = []; }
  					supbooks[supbooks.length - 1].XTI = supbooks[supbooks.length - 1].XTI.concat(val); supbooks.XTI = supbooks.XTI.concat(val); break;
  				case 'NameCmt':
  					/* TODO: search for correct name */
  					if(opts.biff < 8) break;
  					if(last_lbl != null) last_lbl.Comment = val[1];
  					break;
  
  				case 'Protect': out["!protect"] = val; break; /* for sheet or book */
  				case 'Password': if(val !== 0 && opts.WTF) console.error("Password verifier: " + val); break;
  				case 'Prot4Rev': case 'Prot4RevPass': break; /*TODO: Revision Control*/
  
  				case 'BoundSheet8': {
  					Directory[val.pos] = val;
  					opts.snames.push(val.name);
  				} break;
  				case 'EOF': {
  					if(--file_depth) break;
  					if(range.e) {
  						if(range.e.r > 0 && range.e.c > 0) {
  							range.e.r--; range.e.c--;
  							out["!ref"] = encode_range(range);
  							if(options.sheetRows && options.sheetRows <= range.e.r) {
  								var tmpri = range.e.r;
  								range.e.r = options.sheetRows - 1;
  								out["!fullref"] = out["!ref"];
  								out["!ref"] = encode_range(range);
  								range.e.r = tmpri;
  							}
  							range.e.r++; range.e.c++;
  						}
  						if(merges.length > 0) out["!merges"] = merges;
  						if(objects.length > 0) out["!objects"] = objects;
  						if(colinfo.length > 0) out["!cols"] = colinfo;
  						if(rowinfo.length > 0) out["!rows"] = rowinfo;
  						Workbook.Sheets.push(wsprops);
  					}
  					if(cur_sheet === "") Preamble = out; else Sheets[cur_sheet] = out;
  					out = ((options.dense ? [] : {}));
  				} break;
  				case 'BOF': {
  					if(opts.biff === 8) opts.biff = {
  0x0009:2,
  0x0209:3,
  0x0409:4
  					}[RecordType] || {
  0x0200:2,
  0x0300:3,
  0x0400:4,
  0x0500:5,
  0x0600:8,
  0x0002:2,
  0x0007:2
  					}[val.BIFFVer] || 8;
  					if(opts.biff == 8 && val.BIFFVer == 0 && val.dt == 16) opts.biff = 2;
  					if(file_depth++) break;
  					cell_valid = true;
  					out = ((options.dense ? [] : {}));
  
  					if(opts.biff < 8 && !seen_codepage) { seen_codepage = true; set_cp(opts.codepage = options.codepage || 1252); }
  					if(opts.biff < 5) {
  						if(cur_sheet === "") cur_sheet = "Sheet1";
  						range = {s:{r:0,c:0},e:{r:0,c:0}};
  						/* fake BoundSheet8 */
  						var fakebs8 = {pos: blob.l - length, name:cur_sheet};
  						Directory[fakebs8.pos] = fakebs8;
  						opts.snames.push(cur_sheet);
  					}
  					else cur_sheet = (Directory[s] || {name:""}).name;
  					if(val.dt == 0x20) out["!type"] = "chart";
  					if(val.dt == 0x40) out["!type"] = "macro";
  					merges = [];
  					objects = [];
  					opts.arrayf = arrayf = [];
  					colinfo = []; rowinfo = [];
  					defwidth = defheight = 0;
  					seencol = false;
  					wsprops = {Hidden:(Directory[s]||{hs:0}).hs, name:cur_sheet };
  				} break;
  
  				case 'Number': case 'BIFF2NUM': case 'BIFF2INT': {
  					if(out["!type"] == "chart") if(options.dense ? (out[val.r]||[])[val.c]: out[encode_cell({c:val.c, r:val.r})]) ++val.c;
  					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe]||{}, v:val.val, t:'n'});
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  				} break;
  				case 'BoolErr': {
  					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.val, t:val.t});
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  				} break;
  				case 'RK': {
  					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.rknum, t:'n'});
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  				} break;
  				case 'MulRk': {
  					for(var j = val.c; j <= val.C; ++j) {
  						var ixfe = val.rkrec[j-val.c][0];
  						temp_val= ({ixfe:ixfe, XF:XFs[ixfe], v:val.rkrec[j-val.c][1], t:'n'});
  						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  						safe_format_xf(temp_val, options, wb.opts.Date1904);
  						addcell({c:j, r:val.r}, temp_val, options);
  					}
  				} break;
  				case 'Formula': {
  					if(val.val == 'String') { last_formula = val; break; }
  					temp_val = make_cell(val.val, val.cell.ixfe, val.tt);
  					temp_val.XF = XFs[temp_val.ixfe];
  					if(options.cellFormula) {
  						var _f = val.formula;
  						if(_f && _f[0] && _f[0][0] && _f[0][0][0] == 'PtgExp') {
  							var _fr = _f[0][0][1][0], _fc = _f[0][0][1][1];
  							var _fe = encode_cell({r:_fr, c:_fc});
  							if(sharedf[_fe]) temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
  							else temp_val.F = ((options.dense ? (out[_fr]||[])[_fc]: out[_fe]) || {}).F;
  						} else temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
  					}
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell(val.cell, temp_val, options);
  					last_formula = val;
  				} break;
  				case 'String': {
  					if(last_formula) { /* technically always true */
  						last_formula.val = val;
  						temp_val = make_cell(val, last_formula.cell.ixfe, 's');
  						temp_val.XF = XFs[temp_val.ixfe];
  						if(options.cellFormula) {
  							temp_val.f = ""+stringify_formula(last_formula.formula, range, last_formula.cell, supbooks, opts);
  						}
  						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  						safe_format_xf(temp_val, options, wb.opts.Date1904);
  						addcell(last_formula.cell, temp_val, options);
  						last_formula = null;
  					} else throw new Error("String record expects Formula");
  				} break;
  				case 'Array': {
  					arrayf.push(val);
  					var _arraystart = encode_cell(val[0].s);
  					cc = options.dense ? (out[val[0].s.r]||[])[val[0].s.c] : out[_arraystart];
  					if(options.cellFormula && cc) {
  						if(!last_formula) break; /* technically unreachable */
  						if(!_arraystart || !cc) break;
  						cc.f = ""+stringify_formula(val[1], range, val[0], supbooks, opts);
  						cc.F = encode_range(val[0]);
  					}
  				} break;
  				case 'ShrFmla': {
  					if(!cell_valid) break;
  					if(!options.cellFormula) break;
  					if(last_cell) {
  						/* TODO: capture range */
  						if(!last_formula) break; /* technically unreachable */
  						sharedf[encode_cell(last_formula.cell)]= val[0];
  						cc = options.dense ? (out[last_formula.cell.r]||[])[last_formula.cell.c] : out[encode_cell(last_formula.cell)];
  						(cc||{}).f = ""+stringify_formula(val[0], range, lastcell, supbooks, opts);
  					}
  				} break;
  				case 'LabelSst':
  					temp_val=make_cell(sst[val.isst].t, val.ixfe, 's');
  					temp_val.XF = XFs[temp_val.ixfe];
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  					break;
  				case 'Blank': if(options.sheetStubs) {
  					temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], t:'z'});
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  				} break;
  				case 'MulBlank': if(options.sheetStubs) {
  					for(var _j = val.c; _j <= val.C; ++_j) {
  						var _ixfe = val.ixfe[_j-val.c];
  						temp_val= ({ixfe:_ixfe, XF:XFs[_ixfe], t:'z'});
  						if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  						safe_format_xf(temp_val, options, wb.opts.Date1904);
  						addcell({c:_j, r:val.r}, temp_val, options);
  					}
  				} break;
  				case 'RString':
  				case 'Label': case 'BIFF2STR':
  					temp_val=make_cell(val.val, val.ixfe, 's');
  					temp_val.XF = XFs[temp_val.ixfe];
  					if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
  					safe_format_xf(temp_val, options, wb.opts.Date1904);
  					addcell({c:val.c, r:val.r}, temp_val, options);
  					break;
  
  				case 'Dimensions': {
  					if(file_depth === 1) range = val; /* TODO: stack */
  				} break;
  				case 'SST': {
  					sst = val;
  				} break;
  				case 'Format': { /* val = [id, fmt] */
  					if(opts.biff == 4) {
  						BIFF2FmtTable[BIFF2Fmt++] = val[1];
  						for(var b4idx = 0; b4idx < BIFF2Fmt + 163; ++b4idx) if(SSF._table[b4idx] == val[1]) break;
  						if(b4idx >= 163) SSF.load(val[1], BIFF2Fmt + 163);
  					}
  					else SSF.load(val[1], val[0]);
  				} break;
  				case 'BIFF2FORMAT': {
  					BIFF2FmtTable[BIFF2Fmt++] = val;
  					for(var b2idx = 0; b2idx < BIFF2Fmt + 163; ++b2idx) if(SSF._table[b2idx] == val) break;
  					if(b2idx >= 163) SSF.load(val, BIFF2Fmt + 163);
  				} break;
  
  				case 'MergeCells': merges = merges.concat(val); break;
  
  				case 'Obj': objects[val.cmo[0]] = opts.lastobj = val; break;
  				case 'TxO': opts.lastobj.TxO = val; break;
  				case 'ImData': opts.lastobj.ImData = val; break;
  
  				case 'HLink': {
  					for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
  						for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
  							cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
  							if(cc) cc.l = val[1];
  						}
  				} break;
  				case 'HLinkTooltip': {
  					for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
  						for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
  							cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
  							if(cc && cc.l) cc.l.Tooltip = val[1];
  							}
  				} break;
  
  				/* Comments */
  				case 'Note': {
  					if(opts.biff <= 5 && opts.biff >= 2) break; /* TODO: BIFF5 */
  					cc = options.dense ? (out[val[0].r]||[])[val[0].c] : out[encode_cell(val[0])];
  					var noteobj = objects[val[2]];
  					if(!cc) break;
  					if(!cc.c) cc.c = [];
  					cmnt = {a:val[1],t:noteobj.TxO.t};
  					cc.c.push(cmnt);
  				} break;
  
  				default: switch(R.n) { /* nested */
  				case 'ClrtClient': break;
  				case 'XFExt': update_xfext(XFs[val.ixfe], val.ext); break;
  
  				case 'DefColWidth': defwidth = val; break;
  				case 'DefaultRowHeight': defheight = val[1]; break; // TODO: flags
  
  				case 'ColInfo': {
  					if(!opts.cellStyles) break;
  					while(val.e >= val.s) {
  						colinfo[val.e--] = { width: val.w/256 };
  						if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
  						process_col(colinfo[val.e+1]);
  					}
  				} break;
  				case 'Row': {
  					var rowobj = {};
  					if(val.level != null) { rowinfo[val.r] = rowobj; rowobj.level = val.level; }
  					if(val.hidden) { rowinfo[val.r] = rowobj; rowobj.hidden = true; }
  					if(val.hpt) {
  						rowinfo[val.r] = rowobj;
  						rowobj.hpt = val.hpt; rowobj.hpx = pt2px(val.hpt);
  					}
  				} break;
  
  				case 'LeftMargin':
  				case 'RightMargin':
  				case 'TopMargin':
  				case 'BottomMargin':
  					if(!out['!margins']) default_margins(out['!margins'] = {});
  					out['!margins'][Rn.slice(0,-6).toLowerCase()] = val;
  					break;
  
  				case 'Setup': // TODO
  					if(!out['!margins']) default_margins(out['!margins'] = {});
  					out['!margins'].header = val.header;
  					out['!margins'].footer = val.footer;
  					break;
  
  				case 'Window2': // TODO
  					// $FlowIgnore
  					if(val.RTL) Workbook.Views[0].RTL = true;
  					break;
  
  				case 'Header': break; // TODO
  				case 'Footer': break; // TODO
  				case 'HCenter': break; // TODO
  				case 'VCenter': break; // TODO
  				case 'Pls': break; // TODO
  				case 'GCW': break;
  				case 'LHRecord': break;
  				case 'DBCell': break; // TODO
  				case 'EntExU2': break; // TODO
  				case 'SxView': break; // TODO
  				case 'Sxvd': break; // TODO
  				case 'SXVI': break; // TODO
  				case 'SXVDEx': break; // TODO
  				case 'SxIvd': break; // TODO
  				case 'SXString': break; // TODO
  				case 'Sync': break;
  				case 'Addin': break;
  				case 'SXDI': break; // TODO
  				case 'SXLI': break; // TODO
  				case 'SXEx': break; // TODO
  				case 'QsiSXTag': break; // TODO
  				case 'Selection': break;
  				case 'Feat': break;
  				case 'FeatHdr': case 'FeatHdr11': break;
  				case 'Feature11': case 'Feature12': case 'List12': break;
  				case 'Country': country = val; break;
  				case 'RecalcId': break;
  				case 'DxGCol': break; // TODO: htmlify
  				case 'Fbi': case 'Fbi2': case 'GelFrame': break;
  				case 'Font': break; // TODO
  				case 'XFCRC': break; // TODO
  				case 'Style': break; // TODO
  				case 'StyleExt': break; // TODO
  				case 'Palette': palette = val; break;
  				case 'Theme': themes = val; break;
  				/* Protection */
  				case 'ScenarioProtect': break;
  				case 'ObjProtect': break;
  
  				/* Conditional Formatting */
  				case 'CondFmt12': break;
  
  				/* Table */
  				case 'Table': break; // TODO
  				case 'TableStyles': break; // TODO
  				case 'TableStyle': break; // TODO
  				case 'TableStyleElement': break; // TODO
  
  				/* PivotTable */
  				case 'SXStreamID': break; // TODO
  				case 'SXVS': break; // TODO
  				case 'DConRef': break; // TODO
  				case 'SXAddl': break; // TODO
  				case 'DConBin': break; // TODO
  				case 'DConName': break; // TODO
  				case 'SXPI': break; // TODO
  				case 'SxFormat': break; // TODO
  				case 'SxSelect': break; // TODO
  				case 'SxRule': break; // TODO
  				case 'SxFilt': break; // TODO
  				case 'SxItm': break; // TODO
  				case 'SxDXF': break; // TODO
  
  				/* Scenario Manager */
  				case 'ScenMan': break;
  
  				/* Data Consolidation */
  				case 'DCon': break;
  
  				/* Watched Cell */
  				case 'CellWatch': break;
  
  				/* Print Settings */
  				case 'PrintRowCol': break;
  				case 'PrintGrid': break;
  				case 'PrintSize': break;
  
  				case 'XCT': break;
  				case 'CRN': break;
  
  				case 'Scl': {
  					//console.log("Zoom Level:", val[0]/val[1],val);
  				} break;
  				case 'SheetExt': {
  					/* empty */
  				} break;
  				case 'SheetExtOptional': {
  					/* empty */
  				} break;
  
  				/* VBA */
  				case 'ObNoMacros': {
  					/* empty */
  				} break;
  				case 'ObProj': {
  					/* empty */
  				} break;
  				case 'CodeName': {
  if(!cur_sheet) Workbook.WBProps.CodeName = val || "ThisWorkbook";
  					else wsprops.CodeName = val || wsprops.name;
  				} break;
  				case 'GUIDTypeLib': {
  					/* empty */
  				} break;
  
  				case 'WOpt': break; // TODO: WTF?
  				case 'PhoneticInfo': break;
  
  				case 'OleObjectSize': break;
  
  				/* Differential Formatting */
  				case 'DXF': case 'DXFN': case 'DXFN12': case 'DXFN12List': case 'DXFN12NoCB': break;
  
  				/* Data Validation */
  				case 'Dv': case 'DVal': break;
  
  				/* Data Series */
  				case 'BRAI': case 'Series': case 'SeriesText': break;
  
  				/* Data Connection */
  				case 'DConn': break;
  				case 'DbOrParamQry': break;
  				case 'DBQueryExt': break;
  
  				case 'OleDbConn': break;
  				case 'ExtString': break;
  
  				/* Formatting */
  				case 'IFmtRecord': break;
  				case 'CondFmt': case 'CF': case 'CF12': case 'CFEx': break;
  
  				/* Explicitly Ignored */
  				case 'Excel9File': break;
  				case 'Units': break;
  				case 'InterfaceHdr': case 'Mms': case 'InterfaceEnd': case 'DSF': break;
  				case 'BuiltInFnGroupCount': /* 2.4.30 0x0E or 0x10 but excel 2011 generates 0x11? */ break;
  				/* View Stuff */
  				case 'Window1': case 'HideObj': case 'GridSet': case 'Guts':
  				case 'UserBView': case 'UserSViewBegin': case 'UserSViewEnd':
  				case 'Pane': break;
  				default: switch(R.n) { /* nested */
  				/* Chart */
  				case 'Dat':
  				case 'Begin': case 'End':
  				case 'StartBlock': case 'EndBlock':
  				case 'Frame': case 'Area':
  				case 'Axis': case 'AxisLine': case 'Tick': break;
  				case 'AxesUsed':
  				case 'CrtLayout12': case 'CrtLayout12A': case 'CrtLink': case 'CrtLine': case 'CrtMlFrt': case 'CrtMlFrtContinue': break;
  				case 'LineFormat': case 'AreaFormat':
  				case 'Chart': case 'Chart3d': case 'Chart3DBarShape': case 'ChartFormat': case 'ChartFrtInfo': break;
  				case 'PlotArea': case 'PlotGrowth': break;
  				case 'SeriesList': case 'SerParent': case 'SerAuxTrend': break;
  				case 'DataFormat': case 'SerToCrt': case 'FontX': break;
  				case 'CatSerRange': case 'AxcExt': case 'SerFmt': break;
  				case 'ShtProps': break;
  				case 'DefaultText': case 'Text': case 'CatLab': break;
  				case 'DataLabExtContents': break;
  				case 'Legend': case 'LegendException': break;
  				case 'Pie': case 'Scatter': break;
  				case 'PieFormat': case 'MarkerFormat': break;
  				case 'StartObject': case 'EndObject': break;
  				case 'AlRuns': case 'ObjectLink': break;
  				case 'SIIndex': break;
  				case 'AttachedLabel': case 'YMult': break;
  
  				/* Chart Group */
  				case 'Line': case 'Bar': break;
  				case 'Surf': break;
  
  				/* Axis Group */
  				case 'AxisParent': break;
  				case 'Pos': break;
  				case 'ValueRange': break;
  
  				/* Pivot Chart */
  				case 'SXViewEx9': break; // TODO
  				case 'SXViewLink': break;
  				case 'PivotChartBits': break;
  				case 'SBaseRef': break;
  				case 'TextPropsStream': break;
  
  				/* Chart Misc */
  				case 'LnExt': break;
  				case 'MkrExt': break;
  				case 'CrtCoopt': break;
  
  				/* Query Table */
  				case 'Qsi': case 'Qsif': case 'Qsir': case 'QsiSXTag': break;
  				case 'TxtQry': break;
  
  				/* Filter */
  				case 'FilterMode': break;
  				case 'AutoFilter': case 'AutoFilterInfo': break;
  				case 'AutoFilter12': break;
  				case 'DropDownObjIds': break;
  				case 'Sort': break;
  				case 'SortData': break;
  
  				/* Drawing */
  				case 'ShapePropsStream': break;
  				case 'MsoDrawing': case 'MsoDrawingGroup': case 'MsoDrawingSelection': break;
  				/* Pub Stuff */
  				case 'WebPub': case 'AutoWebPub': break;
  
  				/* Print Stuff */
  				case 'HeaderFooter': case 'HFPicture': case 'PLV':
  				case 'HorizontalPageBreaks': case 'VerticalPageBreaks': break;
  				/* Behavioral */
  				case 'Backup': case 'CompressPictures': case 'Compat12': break;
  
  				/* Should not Happen */
  				case 'Continue': case 'ContinueFrt12': break;
  
  				/* Future Records */
  				case 'FrtFontList': case 'FrtWrapper': break;
  
  				default: switch(R.n) { /* nested */
  				/* BIFF5 records */
  				case 'TabIdConf': case 'Radar': case 'RadarArea': case 'DropBar': case 'Intl': case 'CoordList': case 'SerAuxErrBar': break;
  
  				/* BIFF2-4 records */
  				case 'BIFF2FONTCLR': case 'BIFF2FMTCNT': case 'BIFF2FONTXTRA': break;
  				case 'BIFF2XF': case 'BIFF3XF': case 'BIFF4XF': break;
  				case 'BIFF4FMTCNT': case 'BIFF2ROW': case 'BIFF2WINDOW2': break;
  
  				/* Miscellaneous */
  				case 'SCENARIO': case 'DConBin': case 'PicF': case 'DataLabExt':
  				case 'Lel': case 'BopPop': case 'BopPopCustom': case 'RealTimeData':
  				case 'Name': break;
  				case 'LHNGraph': case 'FnGroupName': case 'AddMenu': case 'LPr': break;
  				case 'ListObj': case 'ListField': break;
  				case 'RRSort': break;
  				case 'BigName': break;
  				case 'ToolbarHdr': case 'ToolbarEnd': break;
  				case 'DDEObjName': break;
  				case 'FRTArchId$': break;
  				default: if(options.WTF) throw 'Unrecognized Record ' + R.n;
  			}}}}
  		} else blob.l += length;
  	}
  	wb.SheetNames=keys(Directory).sort(function(a,b) { return Number(a) - Number(b); }).map(function(x){return Directory[x].name;});
  	if(!options.bookSheets) wb.Sheets=Sheets;
  	if(wb.Sheets) FilterDatabases.forEach(function(r,i) { wb.Sheets[wb.SheetNames[i]]['!autofilter'] = r; });
  	wb.Preamble=Preamble;
  	wb.Strings = sst;
  	wb.SSF = SSF.get_table();
  	if(opts.enc) wb.Encryption = opts.enc;
  	if(themes) wb.Themes = themes;
  	wb.Metadata = {};
  	if(country !== undefined) wb.Metadata.Country = country;
  	if(supbooks.names.length > 0) Workbook.Names = supbooks.names;
  	wb.Workbook = Workbook;
  	return wb;
  }
  
  /* TODO: split props*/
  var PSCLSID = {
  	SI: "e0859ff2f94f6810ab9108002b27b3d9",
  	DSI: "02d5cdd59c2e1b10939708002b2cf9ae",
  	UDI: "05d5cdd59c2e1b10939708002b2cf9ae"
  };
  function parse_xls_props(cfb, props, o) {
  	/* [MS-OSHARED] 2.3.3.2.2 Document Summary Information Property Set */
  	var DSI = CFB.find(cfb, '!DocumentSummaryInformation');
  	if(DSI && DSI.size > 0) try {
  		var DocSummary = parse_PropertySetStream(DSI, DocSummaryPIDDSI, PSCLSID.DSI);
  		for(var d in DocSummary) props[d] = DocSummary[d];
  	} catch(e) {if(o.WTF) throw e;/* empty */}
  
  	/* [MS-OSHARED] 2.3.3.2.1 Summary Information Property Set*/
  	var SI = CFB.find(cfb, '!SummaryInformation');
  	if(SI && SI.size > 0) try {
  		var Summary = parse_PropertySetStream(SI, SummaryPIDSI, PSCLSID.SI);
  		for(var s in Summary) if(props[s] == null) props[s] = Summary[s];
  	} catch(e) {if(o.WTF) throw e;/* empty */}
  
  	if(props.HeadingPairs && props.TitlesOfParts) {
  		load_props_pairs(props.HeadingPairs, props.TitlesOfParts, props, o);
  		delete props.HeadingPairs; delete props.TitlesOfParts;
  	}
  }
  function write_xls_props(wb, cfb) {
  	var DSEntries = [], SEntries = [], CEntries = [];
  	var i = 0, Keys;
  	if(wb.Props) {
  		Keys = keys(wb.Props);
  		// $FlowIgnore
  		for(i = 0; i < Keys.length; ++i) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Props[Keys[i]]]);
  	}
  	if(wb.Custprops) {
  		Keys = keys(wb.Custprops);
  		// $FlowIgnore
  		for(i = 0; i < Keys.length; ++i) if(!(wb.Props||{}).hasOwnProperty(Keys[i])) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Custprops[Keys[i]]]);
  	}
  	var CEntries2 = [];
  	for(i = 0; i < CEntries.length; ++i) {
  		if(XLSPSSkip.indexOf(CEntries[i][0]) > -1) continue;
  		if(CEntries[i][1] == null) continue;
  		CEntries2.push(CEntries[i]);
  	}
  	if(SEntries.length) CFB.utils.cfb_add(cfb, "/\u0005SummaryInformation", write_PropertySetStream(SEntries, PSCLSID.SI, SummaryRE, SummaryPIDSI));
  	if(DSEntries.length || CEntries2.length) CFB.utils.cfb_add(cfb, "/\u0005DocumentSummaryInformation", write_PropertySetStream(DSEntries, PSCLSID.DSI, DocSummaryRE, DocSummaryPIDDSI, CEntries2.length ? CEntries2 : null, PSCLSID.UDI));
  }
  
  function parse_xlscfb(cfb, options) {
  if(!options) options = {};
  fix_read_opts(options);
  reset_cp();
  if(options.codepage) set_ansi(options.codepage);
  var CompObj, WB;
  if(cfb.FullPaths) {
  	if(CFB.find(cfb, '/encryption')) throw new Error("File is password-protected");
  	CompObj = CFB.find(cfb, '!CompObj');
  	WB = CFB.find(cfb, '/Workbook') || CFB.find(cfb, '/Book');
  } else {
  	switch(options.type) {
  		case 'base64': cfb = s2a(Base64.decode(cfb)); break;
  		case 'binary': cfb = s2a(cfb); break;
  		case 'buffer': break;
  		case 'array': if(!Array.isArray(cfb)) cfb = Array.prototype.slice.call(cfb); break;
  	}
  	prep_blob(cfb, 0);
  	WB = ({content: cfb});
  }
  var WorkbookP;
  
  var _data;
  if(CompObj) parse_compobj(CompObj);
  if(options.bookProps && !options.bookSheets) WorkbookP = ({});
  else {
  	var T = has_buf ? 'buffer' : 'array';
  	if(WB && WB.content) WorkbookP = parse_workbook(WB.content, options);
  	/* Quattro Pro 7-8 */
  	else if((_data=CFB.find(cfb, 'PerfectOffice_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
  	/* Quattro Pro 9 */
  	else if((_data=CFB.find(cfb, 'NativeContent_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
  	else throw new Error("Cannot find Workbook stream");
  	if(options.bookVBA && cfb.FullPaths && CFB.find(cfb, '/_VBA_PROJECT_CUR/VBA/dir')) WorkbookP.vbaraw = make_vba_xls(cfb);
  }
  
  var props = {};
  if(cfb.FullPaths) parse_xls_props(cfb, props, options);
  
  WorkbookP.Props = WorkbookP.Custprops = props; /* TODO: split up properties */
  if(options.bookFiles) WorkbookP.cfb = cfb;
  /*WorkbookP.CompObjP = CompObjP; // TODO: storage? */
  return WorkbookP;
  }
  
  
  function write_xlscfb(wb, opts) {
  	var o = opts || {};
  	var cfb = CFB.utils.cfb_new({root:"R"});
  	var wbpath = "/Workbook";
  	switch(o.bookType || "xls") {
  		case "xls": o.bookType = "biff8";
  		/* falls through */
  		case "xla": if(!o.bookType) o.bookType = "xla";
  		/* falls through */
  		case "biff8": wbpath = "/Workbook"; o.biff = 8; break;
  		case "biff5": wbpath = "/Book"; o.biff = 5; break;
  		default: throw new Error("invalid type " + o.bookType + " for XLS CFB");
  	}
  	CFB.utils.cfb_add(cfb, wbpath, write_biff_buf(wb, o));
  	if(o.biff == 8 && (wb.Props || wb.Custprops)) write_xls_props(wb, cfb);
  	// TODO: SI, DSI, CO
  	if(o.biff == 8 && wb.vbaraw) fill_vba_xls(cfb, CFB.read(wb.vbaraw, {type: typeof wb.vbaraw == "string" ? "binary" : "buffer"}));
  	return cfb;
  }
  /* [MS-XLSB] 2.3 Record Enumeration */
  var XLSBRecordEnum = {
  0x0000: { n:"BrtRowHdr", f:parse_BrtRowHdr },
  0x0001: { n:"BrtCellBlank", f:parse_BrtCellBlank },
  0x0002: { n:"BrtCellRk", f:parse_BrtCellRk },
  0x0003: { n:"BrtCellError", f:parse_BrtCellError },
  0x0004: { n:"BrtCellBool", f:parse_BrtCellBool },
  0x0005: { n:"BrtCellReal", f:parse_BrtCellReal },
  0x0006: { n:"BrtCellSt", f:parse_BrtCellSt },
  0x0007: { n:"BrtCellIsst", f:parse_BrtCellIsst },
  0x0008: { n:"BrtFmlaString", f:parse_BrtFmlaString },
  0x0009: { n:"BrtFmlaNum", f:parse_BrtFmlaNum },
  0x000A: { n:"BrtFmlaBool", f:parse_BrtFmlaBool },
  0x000B: { n:"BrtFmlaError", f:parse_BrtFmlaError },
  0x0010: { n:"BrtFRTArchID$", f:parse_BrtFRTArchID$ },
  0x0013: { n:"BrtSSTItem", f:parse_RichStr },
  0x0014: { n:"BrtPCDIMissing" },
  0x0015: { n:"BrtPCDINumber" },
  0x0016: { n:"BrtPCDIBoolean" },
  0x0017: { n:"BrtPCDIError" },
  0x0018: { n:"BrtPCDIString" },
  0x0019: { n:"BrtPCDIDatetime" },
  0x001A: { n:"BrtPCDIIndex" },
  0x001B: { n:"BrtPCDIAMissing" },
  0x001C: { n:"BrtPCDIANumber" },
  0x001D: { n:"BrtPCDIABoolean" },
  0x001E: { n:"BrtPCDIAError" },
  0x001F: { n:"BrtPCDIAString" },
  0x0020: { n:"BrtPCDIADatetime" },
  0x0021: { n:"BrtPCRRecord" },
  0x0022: { n:"BrtPCRRecordDt" },
  0x0023: { n:"BrtFRTBegin" },
  0x0024: { n:"BrtFRTEnd" },
  0x0025: { n:"BrtACBegin" },
  0x0026: { n:"BrtACEnd" },
  0x0027: { n:"BrtName", f:parse_BrtName },
  0x0028: { n:"BrtIndexRowBlock" },
  0x002A: { n:"BrtIndexBlock" },
  0x002B: { n:"BrtFont", f:parse_BrtFont },
  0x002C: { n:"BrtFmt", f:parse_BrtFmt },
  0x002D: { n:"BrtFill", f:parse_BrtFill },
  0x002E: { n:"BrtBorder", f:parse_BrtBorder },
  0x002F: { n:"BrtXF", f:parse_BrtXF },
  0x0030: { n:"BrtStyle" },
  0x0031: { n:"BrtCellMeta" },
  0x0032: { n:"BrtValueMeta" },
  0x0033: { n:"BrtMdb" },
  0x0034: { n:"BrtBeginFmd" },
  0x0035: { n:"BrtEndFmd" },
  0x0036: { n:"BrtBeginMdx" },
  0x0037: { n:"BrtEndMdx" },
  0x0038: { n:"BrtBeginMdxTuple" },
  0x0039: { n:"BrtEndMdxTuple" },
  0x003A: { n:"BrtMdxMbrIstr" },
  0x003B: { n:"BrtStr" },
  0x003C: { n:"BrtColInfo", f:parse_ColInfo },
  0x003E: { n:"BrtCellRString" },
  0x003F: { n:"BrtCalcChainItem$", f:parse_BrtCalcChainItem$ },
  0x0040: { n:"BrtDVal" },
  0x0041: { n:"BrtSxvcellNum" },
  0x0042: { n:"BrtSxvcellStr" },
  0x0043: { n:"BrtSxvcellBool" },
  0x0044: { n:"BrtSxvcellErr" },
  0x0045: { n:"BrtSxvcellDate" },
  0x0046: { n:"BrtSxvcellNil" },
  0x0080: { n:"BrtFileVersion" },
  0x0081: { n:"BrtBeginSheet" },
  0x0082: { n:"BrtEndSheet" },
  0x0083: { n:"BrtBeginBook", f:parsenoop, p:0 },
  0x0084: { n:"BrtEndBook" },
  0x0085: { n:"BrtBeginWsViews" },
  0x0086: { n:"BrtEndWsViews" },
  0x0087: { n:"BrtBeginBookViews" },
  0x0088: { n:"BrtEndBookViews" },
  0x0089: { n:"BrtBeginWsView", f:parse_BrtBeginWsView },
  0x008A: { n:"BrtEndWsView" },
  0x008B: { n:"BrtBeginCsViews" },
  0x008C: { n:"BrtEndCsViews" },
  0x008D: { n:"BrtBeginCsView" },
  0x008E: { n:"BrtEndCsView" },
  0x008F: { n:"BrtBeginBundleShs" },
  0x0090: { n:"BrtEndBundleShs" },
  0x0091: { n:"BrtBeginSheetData" },
  0x0092: { n:"BrtEndSheetData" },
  0x0093: { n:"BrtWsProp", f:parse_BrtWsProp },
  0x0094: { n:"BrtWsDim", f:parse_BrtWsDim, p:16 },
  0x0097: { n:"BrtPane" },
  0x0098: { n:"BrtSel" },
  0x0099: { n:"BrtWbProp", f:parse_BrtWbProp },
  0x009A: { n:"BrtWbFactoid" },
  0x009B: { n:"BrtFileRecover" },
  0x009C: { n:"BrtBundleSh", f:parse_BrtBundleSh },
  0x009D: { n:"BrtCalcProp" },
  0x009E: { n:"BrtBookView" },
  0x009F: { n:"BrtBeginSst", f:parse_BrtBeginSst },
  0x00A0: { n:"BrtEndSst" },
  0x00A1: { n:"BrtBeginAFilter", f:parse_UncheckedRfX },
  0x00A2: { n:"BrtEndAFilter" },
  0x00A3: { n:"BrtBeginFilterColumn" },
  0x00A4: { n:"BrtEndFilterColumn" },
  0x00A5: { n:"BrtBeginFilters" },
  0x00A6: { n:"BrtEndFilters" },
  0x00A7: { n:"BrtFilter" },
  0x00A8: { n:"BrtColorFilter" },
  0x00A9: { n:"BrtIconFilter" },
  0x00AA: { n:"BrtTop10Filter" },
  0x00AB: { n:"BrtDynamicFilter" },
  0x00AC: { n:"BrtBeginCustomFilters" },
  0x00AD: { n:"BrtEndCustomFilters" },
  0x00AE: { n:"BrtCustomFilter" },
  0x00AF: { n:"BrtAFilterDateGroupItem" },
  0x00B0: { n:"BrtMergeCell", f:parse_BrtMergeCell },
  0x00B1: { n:"BrtBeginMergeCells" },
  0x00B2: { n:"BrtEndMergeCells" },
  0x00B3: { n:"BrtBeginPivotCacheDef" },
  0x00B4: { n:"BrtEndPivotCacheDef" },
  0x00B5: { n:"BrtBeginPCDFields" },
  0x00B6: { n:"BrtEndPCDFields" },
  0x00B7: { n:"BrtBeginPCDField" },
  0x00B8: { n:"BrtEndPCDField" },
  0x00B9: { n:"BrtBeginPCDSource" },
  0x00BA: { n:"BrtEndPCDSource" },
  0x00BB: { n:"BrtBeginPCDSRange" },
  0x00BC: { n:"BrtEndPCDSRange" },
  0x00BD: { n:"BrtBeginPCDFAtbl" },
  0x00BE: { n:"BrtEndPCDFAtbl" },
  0x00BF: { n:"BrtBeginPCDIRun" },
  0x00C0: { n:"BrtEndPCDIRun" },
  0x00C1: { n:"BrtBeginPivotCacheRecords" },
  0x00C2: { n:"BrtEndPivotCacheRecords" },
  0x00C3: { n:"BrtBeginPCDHierarchies" },
  0x00C4: { n:"BrtEndPCDHierarchies" },
  0x00C5: { n:"BrtBeginPCDHierarchy" },
  0x00C6: { n:"BrtEndPCDHierarchy" },
  0x00C7: { n:"BrtBeginPCDHFieldsUsage" },
  0x00C8: { n:"BrtEndPCDHFieldsUsage" },
  0x00C9: { n:"BrtBeginExtConnection" },
  0x00CA: { n:"BrtEndExtConnection" },
  0x00CB: { n:"BrtBeginECDbProps" },
  0x00CC: { n:"BrtEndECDbProps" },
  0x00CD: { n:"BrtBeginECOlapProps" },
  0x00CE: { n:"BrtEndECOlapProps" },
  0x00CF: { n:"BrtBeginPCDSConsol" },
  0x00D0: { n:"BrtEndPCDSConsol" },
  0x00D1: { n:"BrtBeginPCDSCPages" },
  0x00D2: { n:"BrtEndPCDSCPages" },
  0x00D3: { n:"BrtBeginPCDSCPage" },
  0x00D4: { n:"BrtEndPCDSCPage" },
  0x00D5: { n:"BrtBeginPCDSCPItem" },
  0x00D6: { n:"BrtEndPCDSCPItem" },
  0x00D7: { n:"BrtBeginPCDSCSets" },
  0x00D8: { n:"BrtEndPCDSCSets" },
  0x00D9: { n:"BrtBeginPCDSCSet" },
  0x00DA: { n:"BrtEndPCDSCSet" },
  0x00DB: { n:"BrtBeginPCDFGroup" },
  0x00DC: { n:"BrtEndPCDFGroup" },
  0x00DD: { n:"BrtBeginPCDFGItems" },
  0x00DE: { n:"BrtEndPCDFGItems" },
  0x00DF: { n:"BrtBeginPCDFGRange" },
  0x00E0: { n:"BrtEndPCDFGRange" },
  0x00E1: { n:"BrtBeginPCDFGDiscrete" },
  0x00E2: { n:"BrtEndPCDFGDiscrete" },
  0x00E3: { n:"BrtBeginPCDSDTupleCache" },
  0x00E4: { n:"BrtEndPCDSDTupleCache" },
  0x00E5: { n:"BrtBeginPCDSDTCEntries" },
  0x00E6: { n:"BrtEndPCDSDTCEntries" },
  0x00E7: { n:"BrtBeginPCDSDTCEMembers" },
  0x00E8: { n:"BrtEndPCDSDTCEMembers" },
  0x00E9: { n:"BrtBeginPCDSDTCEMember" },
  0x00EA: { n:"BrtEndPCDSDTCEMember" },
  0x00EB: { n:"BrtBeginPCDSDTCQueries" },
  0x00EC: { n:"BrtEndPCDSDTCQueries" },
  0x00ED: { n:"BrtBeginPCDSDTCQuery" },
  0x00EE: { n:"BrtEndPCDSDTCQuery" },
  0x00EF: { n:"BrtBeginPCDSDTCSets" },
  0x00F0: { n:"BrtEndPCDSDTCSets" },
  0x00F1: { n:"BrtBeginPCDSDTCSet" },
  0x00F2: { n:"BrtEndPCDSDTCSet" },
  0x00F3: { n:"BrtBeginPCDCalcItems" },
  0x00F4: { n:"BrtEndPCDCalcItems" },
  0x00F5: { n:"BrtBeginPCDCalcItem" },
  0x00F6: { n:"BrtEndPCDCalcItem" },
  0x00F7: { n:"BrtBeginPRule" },
  0x00F8: { n:"BrtEndPRule" },
  0x00F9: { n:"BrtBeginPRFilters" },
  0x00FA: { n:"BrtEndPRFilters" },
  0x00FB: { n:"BrtBeginPRFilter" },
  0x00FC: { n:"BrtEndPRFilter" },
  0x00FD: { n:"BrtBeginPNames" },
  0x00FE: { n:"BrtEndPNames" },
  0x00FF: { n:"BrtBeginPName" },
  0x0100: { n:"BrtEndPName" },
  0x0101: { n:"BrtBeginPNPairs" },
  0x0102: { n:"BrtEndPNPairs" },
  0x0103: { n:"BrtBeginPNPair" },
  0x0104: { n:"BrtEndPNPair" },
  0x0105: { n:"BrtBeginECWebProps" },
  0x0106: { n:"BrtEndECWebProps" },
  0x0107: { n:"BrtBeginEcWpTables" },
  0x0108: { n:"BrtEndECWPTables" },
  0x0109: { n:"BrtBeginECParams" },
  0x010A: { n:"BrtEndECParams" },
  0x010B: { n:"BrtBeginECParam" },
  0x010C: { n:"BrtEndECParam" },
  0x010D: { n:"BrtBeginPCDKPIs" },
  0x010E: { n:"BrtEndPCDKPIs" },
  0x010F: { n:"BrtBeginPCDKPI" },
  0x0110: { n:"BrtEndPCDKPI" },
  0x0111: { n:"BrtBeginDims" },
  0x0112: { n:"BrtEndDims" },
  0x0113: { n:"BrtBeginDim" },
  0x0114: { n:"BrtEndDim" },
  0x0115: { n:"BrtIndexPartEnd" },
  0x0116: { n:"BrtBeginStyleSheet" },
  0x0117: { n:"BrtEndStyleSheet" },
  0x0118: { n:"BrtBeginSXView" },
  0x0119: { n:"BrtEndSXVI" },
  0x011A: { n:"BrtBeginSXVI" },
  0x011B: { n:"BrtBeginSXVIs" },
  0x011C: { n:"BrtEndSXVIs" },
  0x011D: { n:"BrtBeginSXVD" },
  0x011E: { n:"BrtEndSXVD" },
  0x011F: { n:"BrtBeginSXVDs" },
  0x0120: { n:"BrtEndSXVDs" },
  0x0121: { n:"BrtBeginSXPI" },
  0x0122: { n:"BrtEndSXPI" },
  0x0123: { n:"BrtBeginSXPIs" },
  0x0124: { n:"BrtEndSXPIs" },
  0x0125: { n:"BrtBeginSXDI" },
  0x0126: { n:"BrtEndSXDI" },
  0x0127: { n:"BrtBeginSXDIs" },
  0x0128: { n:"BrtEndSXDIs" },
  0x0129: { n:"BrtBeginSXLI" },
  0x012A: { n:"BrtEndSXLI" },
  0x012B: { n:"BrtBeginSXLIRws" },
  0x012C: { n:"BrtEndSXLIRws" },
  0x012D: { n:"BrtBeginSXLICols" },
  0x012E: { n:"BrtEndSXLICols" },
  0x012F: { n:"BrtBeginSXFormat" },
  0x0130: { n:"BrtEndSXFormat" },
  0x0131: { n:"BrtBeginSXFormats" },
  0x0132: { n:"BrtEndSxFormats" },
  0x0133: { n:"BrtBeginSxSelect" },
  0x0134: { n:"BrtEndSxSelect" },
  0x0135: { n:"BrtBeginISXVDRws" },
  0x0136: { n:"BrtEndISXVDRws" },
  0x0137: { n:"BrtBeginISXVDCols" },
  0x0138: { n:"BrtEndISXVDCols" },
  0x0139: { n:"BrtEndSXLocation" },
  0x013A: { n:"BrtBeginSXLocation" },
  0x013B: { n:"BrtEndSXView" },
  0x013C: { n:"BrtBeginSXTHs" },
  0x013D: { n:"BrtEndSXTHs" },
  0x013E: { n:"BrtBeginSXTH" },
  0x013F: { n:"BrtEndSXTH" },
  0x0140: { n:"BrtBeginISXTHRws" },
  0x0141: { n:"BrtEndISXTHRws" },
  0x0142: { n:"BrtBeginISXTHCols" },
  0x0143: { n:"BrtEndISXTHCols" },
  0x0144: { n:"BrtBeginSXTDMPS" },
  0x0145: { n:"BrtEndSXTDMPs" },
  0x0146: { n:"BrtBeginSXTDMP" },
  0x0147: { n:"BrtEndSXTDMP" },
  0x0148: { n:"BrtBeginSXTHItems" },
  0x0149: { n:"BrtEndSXTHItems" },
  0x014A: { n:"BrtBeginSXTHItem" },
  0x014B: { n:"BrtEndSXTHItem" },
  0x014C: { n:"BrtBeginMetadata" },
  0x014D: { n:"BrtEndMetadata" },
  0x014E: { n:"BrtBeginEsmdtinfo" },
  0x014F: { n:"BrtMdtinfo" },
  0x0150: { n:"BrtEndEsmdtinfo" },
  0x0151: { n:"BrtBeginEsmdb" },
  0x0152: { n:"BrtEndEsmdb" },
  0x0153: { n:"BrtBeginEsfmd" },
  0x0154: { n:"BrtEndEsfmd" },
  0x0155: { n:"BrtBeginSingleCells" },
  0x0156: { n:"BrtEndSingleCells" },
  0x0157: { n:"BrtBeginList" },
  0x0158: { n:"BrtEndList" },
  0x0159: { n:"BrtBeginListCols" },
  0x015A: { n:"BrtEndListCols" },
  0x015B: { n:"BrtBeginListCol" },
  0x015C: { n:"BrtEndListCol" },
  0x015D: { n:"BrtBeginListXmlCPr" },
  0x015E: { n:"BrtEndListXmlCPr" },
  0x015F: { n:"BrtListCCFmla" },
  0x0160: { n:"BrtListTrFmla" },
  0x0161: { n:"BrtBeginExternals" },
  0x0162: { n:"BrtEndExternals" },
  0x0163: { n:"BrtSupBookSrc", f:parse_RelID},
  0x0165: { n:"BrtSupSelf" },
  0x0166: { n:"BrtSupSame" },
  0x0167: { n:"BrtSupTabs" },
  0x0168: { n:"BrtBeginSupBook" },
  0x0169: { n:"BrtPlaceholderName" },
  0x016A: { n:"BrtExternSheet", f:parse_ExternSheet },
  0x016B: { n:"BrtExternTableStart" },
  0x016C: { n:"BrtExternTableEnd" },
  0x016E: { n:"BrtExternRowHdr" },
  0x016F: { n:"BrtExternCellBlank" },
  0x0170: { n:"BrtExternCellReal" },
  0x0171: { n:"BrtExternCellBool" },
  0x0172: { n:"BrtExternCellError" },
  0x0173: { n:"BrtExternCellString" },
  0x0174: { n:"BrtBeginEsmdx" },
  0x0175: { n:"BrtEndEsmdx" },
  0x0176: { n:"BrtBeginMdxSet" },
  0x0177: { n:"BrtEndMdxSet" },
  0x0178: { n:"BrtBeginMdxMbrProp" },
  0x0179: { n:"BrtEndMdxMbrProp" },
  0x017A: { n:"BrtBeginMdxKPI" },
  0x017B: { n:"BrtEndMdxKPI" },
  0x017C: { n:"BrtBeginEsstr" },
  0x017D: { n:"BrtEndEsstr" },
  0x017E: { n:"BrtBeginPRFItem" },
  0x017F: { n:"BrtEndPRFItem" },
  0x0180: { n:"BrtBeginPivotCacheIDs" },
  0x0181: { n:"BrtEndPivotCacheIDs" },
  0x0182: { n:"BrtBeginPivotCacheID" },
  0x0183: { n:"BrtEndPivotCacheID" },
  0x0184: { n:"BrtBeginISXVIs" },
  0x0185: { n:"BrtEndISXVIs" },
  0x0186: { n:"BrtBeginColInfos" },
  0x0187: { n:"BrtEndColInfos" },
  0x0188: { n:"BrtBeginRwBrk" },
  0x0189: { n:"BrtEndRwBrk" },
  0x018A: { n:"BrtBeginColBrk" },
  0x018B: { n:"BrtEndColBrk" },
  0x018C: { n:"BrtBrk" },
  0x018D: { n:"BrtUserBookView" },
  0x018E: { n:"BrtInfo" },
  0x018F: { n:"BrtCUsr" },
  0x0190: { n:"BrtUsr" },
  0x0191: { n:"BrtBeginUsers" },
  0x0193: { n:"BrtEOF" },
  0x0194: { n:"BrtUCR" },
  0x0195: { n:"BrtRRInsDel" },
  0x0196: { n:"BrtRREndInsDel" },
  0x0197: { n:"BrtRRMove" },
  0x0198: { n:"BrtRREndMove" },
  0x0199: { n:"BrtRRChgCell" },
  0x019A: { n:"BrtRREndChgCell" },
  0x019B: { n:"BrtRRHeader" },
  0x019C: { n:"BrtRRUserView" },
  0x019D: { n:"BrtRRRenSheet" },
  0x019E: { n:"BrtRRInsertSh" },
  0x019F: { n:"BrtRRDefName" },
  0x01A0: { n:"BrtRRNote" },
  0x01A1: { n:"BrtRRConflict" },
  0x01A2: { n:"BrtRRTQSIF" },
  0x01A3: { n:"BrtRRFormat" },
  0x01A4: { n:"BrtRREndFormat" },
  0x01A5: { n:"BrtRRAutoFmt" },
  0x01A6: { n:"BrtBeginUserShViews" },
  0x01A7: { n:"BrtBeginUserShView" },
  0x01A8: { n:"BrtEndUserShView" },
  0x01A9: { n:"BrtEndUserShViews" },
  0x01AA: { n:"BrtArrFmla", f:parse_BrtArrFmla },
  0x01AB: { n:"BrtShrFmla", f:parse_BrtShrFmla },
  0x01AC: { n:"BrtTable" },
  0x01AD: { n:"BrtBeginExtConnections" },
  0x01AE: { n:"BrtEndExtConnections" },
  0x01AF: { n:"BrtBeginPCDCalcMems" },
  0x01B0: { n:"BrtEndPCDCalcMems" },
  0x01B1: { n:"BrtBeginPCDCalcMem" },
  0x01B2: { n:"BrtEndPCDCalcMem" },
  0x01B3: { n:"BrtBeginPCDHGLevels" },
  0x01B4: { n:"BrtEndPCDHGLevels" },
  0x01B5: { n:"BrtBeginPCDHGLevel" },
  0x01B6: { n:"BrtEndPCDHGLevel" },
  0x01B7: { n:"BrtBeginPCDHGLGroups" },
  0x01B8: { n:"BrtEndPCDHGLGroups" },
  0x01B9: { n:"BrtBeginPCDHGLGroup" },
  0x01BA: { n:"BrtEndPCDHGLGroup" },
  0x01BB: { n:"BrtBeginPCDHGLGMembers" },
  0x01BC: { n:"BrtEndPCDHGLGMembers" },
  0x01BD: { n:"BrtBeginPCDHGLGMember" },
  0x01BE: { n:"BrtEndPCDHGLGMember" },
  0x01BF: { n:"BrtBeginQSI" },
  0x01C0: { n:"BrtEndQSI" },
  0x01C1: { n:"BrtBeginQSIR" },
  0x01C2: { n:"BrtEndQSIR" },
  0x01C3: { n:"BrtBeginDeletedNames" },
  0x01C4: { n:"BrtEndDeletedNames" },
  0x01C5: { n:"BrtBeginDeletedName" },
  0x01C6: { n:"BrtEndDeletedName" },
  0x01C7: { n:"BrtBeginQSIFs" },
  0x01C8: { n:"BrtEndQSIFs" },
  0x01C9: { n:"BrtBeginQSIF" },
  0x01CA: { n:"BrtEndQSIF" },
  0x01CB: { n:"BrtBeginAutoSortScope" },
  0x01CC: { n:"BrtEndAutoSortScope" },
  0x01CD: { n:"BrtBeginConditionalFormatting" },
  0x01CE: { n:"BrtEndConditionalFormatting" },
  0x01CF: { n:"BrtBeginCFRule" },
  0x01D0: { n:"BrtEndCFRule" },
  0x01D1: { n:"BrtBeginIconSet" },
  0x01D2: { n:"BrtEndIconSet" },
  0x01D3: { n:"BrtBeginDatabar" },
  0x01D4: { n:"BrtEndDatabar" },
  0x01D5: { n:"BrtBeginColorScale" },
  0x01D6: { n:"BrtEndColorScale" },
  0x01D7: { n:"BrtCFVO" },
  0x01D8: { n:"BrtExternValueMeta" },
  0x01D9: { n:"BrtBeginColorPalette" },
  0x01DA: { n:"BrtEndColorPalette" },
  0x01DB: { n:"BrtIndexedColor" },
  0x01DC: { n:"BrtMargins", f:parse_BrtMargins },
  0x01DD: { n:"BrtPrintOptions" },
  0x01DE: { n:"BrtPageSetup" },
  0x01DF: { n:"BrtBeginHeaderFooter" },
  0x01E0: { n:"BrtEndHeaderFooter" },
  0x01E1: { n:"BrtBeginSXCrtFormat" },
  0x01E2: { n:"BrtEndSXCrtFormat" },
  0x01E3: { n:"BrtBeginSXCrtFormats" },
  0x01E4: { n:"BrtEndSXCrtFormats" },
  0x01E5: { n:"BrtWsFmtInfo", f:parse_BrtWsFmtInfo },
  0x01E6: { n:"BrtBeginMgs" },
  0x01E7: { n:"BrtEndMGs" },
  0x01E8: { n:"BrtBeginMGMaps" },
  0x01E9: { n:"BrtEndMGMaps" },
  0x01EA: { n:"BrtBeginMG" },
  0x01EB: { n:"BrtEndMG" },
  0x01EC: { n:"BrtBeginMap" },
  0x01ED: { n:"BrtEndMap" },
  0x01EE: { n:"BrtHLink", f:parse_BrtHLink },
  0x01EF: { n:"BrtBeginDCon" },
  0x01F0: { n:"BrtEndDCon" },
  0x01F1: { n:"BrtBeginDRefs" },
  0x01F2: { n:"BrtEndDRefs" },
  0x01F3: { n:"BrtDRef" },
  0x01F4: { n:"BrtBeginScenMan" },
  0x01F5: { n:"BrtEndScenMan" },
  0x01F6: { n:"BrtBeginSct" },
  0x01F7: { n:"BrtEndSct" },
  0x01F8: { n:"BrtSlc" },
  0x01F9: { n:"BrtBeginDXFs" },
  0x01FA: { n:"BrtEndDXFs" },
  0x01FB: { n:"BrtDXF" },
  0x01FC: { n:"BrtBeginTableStyles" },
  0x01FD: { n:"BrtEndTableStyles" },
  0x01FE: { n:"BrtBeginTableStyle" },
  0x01FF: { n:"BrtEndTableStyle" },
  0x0200: { n:"BrtTableStyleElement" },
  0x0201: { n:"BrtTableStyleClient" },
  0x0202: { n:"BrtBeginVolDeps" },
  0x0203: { n:"BrtEndVolDeps" },
  0x0204: { n:"BrtBeginVolType" },
  0x0205: { n:"BrtEndVolType" },
  0x0206: { n:"BrtBeginVolMain" },
  0x0207: { n:"BrtEndVolMain" },
  0x0208: { n:"BrtBeginVolTopic" },
  0x0209: { n:"BrtEndVolTopic" },
  0x020A: { n:"BrtVolSubtopic" },
  0x020B: { n:"BrtVolRef" },
  0x020C: { n:"BrtVolNum" },
  0x020D: { n:"BrtVolErr" },
  0x020E: { n:"BrtVolStr" },
  0x020F: { n:"BrtVolBool" },
  0x0210: { n:"BrtBeginCalcChain$" },
  0x0211: { n:"BrtEndCalcChain$" },
  0x0212: { n:"BrtBeginSortState" },
  0x0213: { n:"BrtEndSortState" },
  0x0214: { n:"BrtBeginSortCond" },
  0x0215: { n:"BrtEndSortCond" },
  0x0216: { n:"BrtBookProtection" },
  0x0217: { n:"BrtSheetProtection" },
  0x0218: { n:"BrtRangeProtection" },
  0x0219: { n:"BrtPhoneticInfo" },
  0x021A: { n:"BrtBeginECTxtWiz" },
  0x021B: { n:"BrtEndECTxtWiz" },
  0x021C: { n:"BrtBeginECTWFldInfoLst" },
  0x021D: { n:"BrtEndECTWFldInfoLst" },
  0x021E: { n:"BrtBeginECTwFldInfo" },
  0x0224: { n:"BrtFileSharing" },
  0x0225: { n:"BrtOleSize" },
  0x0226: { n:"BrtDrawing", f:parse_RelID },
  0x0227: { n:"BrtLegacyDrawing" },
  0x0228: { n:"BrtLegacyDrawingHF" },
  0x0229: { n:"BrtWebOpt" },
  0x022A: { n:"BrtBeginWebPubItems" },
  0x022B: { n:"BrtEndWebPubItems" },
  0x022C: { n:"BrtBeginWebPubItem" },
  0x022D: { n:"BrtEndWebPubItem" },
  0x022E: { n:"BrtBeginSXCondFmt" },
  0x022F: { n:"BrtEndSXCondFmt" },
  0x0230: { n:"BrtBeginSXCondFmts" },
  0x0231: { n:"BrtEndSXCondFmts" },
  0x0232: { n:"BrtBkHim" },
  0x0234: { n:"BrtColor" },
  0x0235: { n:"BrtBeginIndexedColors" },
  0x0236: { n:"BrtEndIndexedColors" },
  0x0239: { n:"BrtBeginMRUColors" },
  0x023A: { n:"BrtEndMRUColors" },
  0x023C: { n:"BrtMRUColor" },
  0x023D: { n:"BrtBeginDVals" },
  0x023E: { n:"BrtEndDVals" },
  0x0241: { n:"BrtSupNameStart" },
  0x0242: { n:"BrtSupNameValueStart" },
  0x0243: { n:"BrtSupNameValueEnd" },
  0x0244: { n:"BrtSupNameNum" },
  0x0245: { n:"BrtSupNameErr" },
  0x0246: { n:"BrtSupNameSt" },
  0x0247: { n:"BrtSupNameNil" },
  0x0248: { n:"BrtSupNameBool" },
  0x0249: { n:"BrtSupNameFmla" },
  0x024A: { n:"BrtSupNameBits" },
  0x024B: { n:"BrtSupNameEnd" },
  0x024C: { n:"BrtEndSupBook" },
  0x024D: { n:"BrtCellSmartTagProperty" },
  0x024E: { n:"BrtBeginCellSmartTag" },
  0x024F: { n:"BrtEndCellSmartTag" },
  0x0250: { n:"BrtBeginCellSmartTags" },
  0x0251: { n:"BrtEndCellSmartTags" },
  0x0252: { n:"BrtBeginSmartTags" },
  0x0253: { n:"BrtEndSmartTags" },
  0x0254: { n:"BrtSmartTagType" },
  0x0255: { n:"BrtBeginSmartTagTypes" },
  0x0256: { n:"BrtEndSmartTagTypes" },
  0x0257: { n:"BrtBeginSXFilters" },
  0x0258: { n:"BrtEndSXFilters" },
  0x0259: { n:"BrtBeginSXFILTER" },
  0x025A: { n:"BrtEndSXFilter" },
  0x025B: { n:"BrtBeginFills" },
  0x025C: { n:"BrtEndFills" },
  0x025D: { n:"BrtBeginCellWatches" },
  0x025E: { n:"BrtEndCellWatches" },
  0x025F: { n:"BrtCellWatch" },
  0x0260: { n:"BrtBeginCRErrs" },
  0x0261: { n:"BrtEndCRErrs" },
  0x0262: { n:"BrtCrashRecErr" },
  0x0263: { n:"BrtBeginFonts" },
  0x0264: { n:"BrtEndFonts" },
  0x0265: { n:"BrtBeginBorders" },
  0x0266: { n:"BrtEndBorders" },
  0x0267: { n:"BrtBeginFmts" },
  0x0268: { n:"BrtEndFmts" },
  0x0269: { n:"BrtBeginCellXFs" },
  0x026A: { n:"BrtEndCellXFs" },
  0x026B: { n:"BrtBeginStyles" },
  0x026C: { n:"BrtEndStyles" },
  0x0271: { n:"BrtBigName" },
  0x0272: { n:"BrtBeginCellStyleXFs" },
  0x0273: { n:"BrtEndCellStyleXFs" },
  0x0274: { n:"BrtBeginComments" },
  0x0275: { n:"BrtEndComments" },
  0x0276: { n:"BrtBeginCommentAuthors" },
  0x0277: { n:"BrtEndCommentAuthors" },
  0x0278: { n:"BrtCommentAuthor", f:parse_BrtCommentAuthor },
  0x0279: { n:"BrtBeginCommentList" },
  0x027A: { n:"BrtEndCommentList" },
  0x027B: { n:"BrtBeginComment", f:parse_BrtBeginComment},
  0x027C: { n:"BrtEndComment" },
  0x027D: { n:"BrtCommentText", f:parse_BrtCommentText },
  0x027E: { n:"BrtBeginOleObjects" },
  0x027F: { n:"BrtOleObject" },
  0x0280: { n:"BrtEndOleObjects" },
  0x0281: { n:"BrtBeginSxrules" },
  0x0282: { n:"BrtEndSxRules" },
  0x0283: { n:"BrtBeginActiveXControls" },
  0x0284: { n:"BrtActiveX" },
  0x0285: { n:"BrtEndActiveXControls" },
  0x0286: { n:"BrtBeginPCDSDTCEMembersSortBy" },
  0x0288: { n:"BrtBeginCellIgnoreECs" },
  0x0289: { n:"BrtCellIgnoreEC" },
  0x028A: { n:"BrtEndCellIgnoreECs" },
  0x028B: { n:"BrtCsProp", f:parse_BrtCsProp },
  0x028C: { n:"BrtCsPageSetup" },
  0x028D: { n:"BrtBeginUserCsViews" },
  0x028E: { n:"BrtEndUserCsViews" },
  0x028F: { n:"BrtBeginUserCsView" },
  0x0290: { n:"BrtEndUserCsView" },
  0x0291: { n:"BrtBeginPcdSFCIEntries" },
  0x0292: { n:"BrtEndPCDSFCIEntries" },
  0x0293: { n:"BrtPCDSFCIEntry" },
  0x0294: { n:"BrtBeginListParts" },
  0x0295: { n:"BrtListPart" },
  0x0296: { n:"BrtEndListParts" },
  0x0297: { n:"BrtSheetCalcProp" },
  0x0298: { n:"BrtBeginFnGroup" },
  0x0299: { n:"BrtFnGroup" },
  0x029A: { n:"BrtEndFnGroup" },
  0x029B: { n:"BrtSupAddin" },
  0x029C: { n:"BrtSXTDMPOrder" },
  0x029D: { n:"BrtCsProtection" },
  0x029F: { n:"BrtBeginWsSortMap" },
  0x02A0: { n:"BrtEndWsSortMap" },
  0x02A1: { n:"BrtBeginRRSort" },
  0x02A2: { n:"BrtEndRRSort" },
  0x02A3: { n:"BrtRRSortItem" },
  0x02A4: { n:"BrtFileSharingIso" },
  0x02A5: { n:"BrtBookProtectionIso" },
  0x02A6: { n:"BrtSheetProtectionIso" },
  0x02A7: { n:"BrtCsProtectionIso" },
  0x02A8: { n:"BrtRangeProtectionIso" },
  0x0400: { n:"BrtRwDescent" },
  0x0401: { n:"BrtKnownFonts" },
  0x0402: { n:"BrtBeginSXTupleSet" },
  0x0403: { n:"BrtEndSXTupleSet" },
  0x0404: { n:"BrtBeginSXTupleSetHeader" },
  0x0405: { n:"BrtEndSXTupleSetHeader" },
  0x0406: { n:"BrtSXTupleSetHeaderItem" },
  0x0407: { n:"BrtBeginSXTupleSetData" },
  0x0408: { n:"BrtEndSXTupleSetData" },
  0x0409: { n:"BrtBeginSXTupleSetRow" },
  0x040A: { n:"BrtEndSXTupleSetRow" },
  0x040B: { n:"BrtSXTupleSetRowItem" },
  0x040C: { n:"BrtNameExt" },
  0x040D: { n:"BrtPCDH14" },
  0x040E: { n:"BrtBeginPCDCalcMem14" },
  0x040F: { n:"BrtEndPCDCalcMem14" },
  0x0410: { n:"BrtSXTH14" },
  0x0411: { n:"BrtBeginSparklineGroup" },
  0x0412: { n:"BrtEndSparklineGroup" },
  0x0413: { n:"BrtSparkline" },
  0x0414: { n:"BrtSXDI14" },
  0x0415: { n:"BrtWsFmtInfoEx14" },
  0x0416: { n:"BrtBeginConditionalFormatting14" },
  0x0417: { n:"BrtEndConditionalFormatting14" },
  0x0418: { n:"BrtBeginCFRule14" },
  0x0419: { n:"BrtEndCFRule14" },
  0x041A: { n:"BrtCFVO14" },
  0x041B: { n:"BrtBeginDatabar14" },
  0x041C: { n:"BrtBeginIconSet14" },
  0x041D: { n:"BrtDVal14" },
  0x041E: { n:"BrtBeginDVals14" },
  0x041F: { n:"BrtColor14" },
  0x0420: { n:"BrtBeginSparklines" },
  0x0421: { n:"BrtEndSparklines" },
  0x0422: { n:"BrtBeginSparklineGroups" },
  0x0423: { n:"BrtEndSparklineGroups" },
  0x0425: { n:"BrtSXVD14" },
  0x0426: { n:"BrtBeginSXView14" },
  0x0427: { n:"BrtEndSXView14" },
  0x0428: { n:"BrtBeginSXView16" },
  0x0429: { n:"BrtEndSXView16" },
  0x042A: { n:"BrtBeginPCD14" },
  0x042B: { n:"BrtEndPCD14" },
  0x042C: { n:"BrtBeginExtConn14" },
  0x042D: { n:"BrtEndExtConn14" },
  0x042E: { n:"BrtBeginSlicerCacheIDs" },
  0x042F: { n:"BrtEndSlicerCacheIDs" },
  0x0430: { n:"BrtBeginSlicerCacheID" },
  0x0431: { n:"BrtEndSlicerCacheID" },
  0x0433: { n:"BrtBeginSlicerCache" },
  0x0434: { n:"BrtEndSlicerCache" },
  0x0435: { n:"BrtBeginSlicerCacheDef" },
  0x0436: { n:"BrtEndSlicerCacheDef" },
  0x0437: { n:"BrtBeginSlicersEx" },
  0x0438: { n:"BrtEndSlicersEx" },
  0x0439: { n:"BrtBeginSlicerEx" },
  0x043A: { n:"BrtEndSlicerEx" },
  0x043B: { n:"BrtBeginSlicer" },
  0x043C: { n:"BrtEndSlicer" },
  0x043D: { n:"BrtSlicerCachePivotTables" },
  0x043E: { n:"BrtBeginSlicerCacheOlapImpl" },
  0x043F: { n:"BrtEndSlicerCacheOlapImpl" },
  0x0440: { n:"BrtBeginSlicerCacheLevelsData" },
  0x0441: { n:"BrtEndSlicerCacheLevelsData" },
  0x0442: { n:"BrtBeginSlicerCacheLevelData" },
  0x0443: { n:"BrtEndSlicerCacheLevelData" },
  0x0444: { n:"BrtBeginSlicerCacheSiRanges" },
  0x0445: { n:"BrtEndSlicerCacheSiRanges" },
  0x0446: { n:"BrtBeginSlicerCacheSiRange" },
  0x0447: { n:"BrtEndSlicerCacheSiRange" },
  0x0448: { n:"BrtSlicerCacheOlapItem" },
  0x0449: { n:"BrtBeginSlicerCacheSelections" },
  0x044A: { n:"BrtSlicerCacheSelection" },
  0x044B: { n:"BrtEndSlicerCacheSelections" },
  0x044C: { n:"BrtBeginSlicerCacheNative" },
  0x044D: { n:"BrtEndSlicerCacheNative" },
  0x044E: { n:"BrtSlicerCacheNativeItem" },
  0x044F: { n:"BrtRangeProtection14" },
  0x0450: { n:"BrtRangeProtectionIso14" },
  0x0451: { n:"BrtCellIgnoreEC14" },
  0x0457: { n:"BrtList14" },
  0x0458: { n:"BrtCFIcon" },
  0x0459: { n:"BrtBeginSlicerCachesPivotCacheIDs" },
  0x045A: { n:"BrtEndSlicerCachesPivotCacheIDs" },
  0x045B: { n:"BrtBeginSlicers" },
  0x045C: { n:"BrtEndSlicers" },
  0x045D: { n:"BrtWbProp14" },
  0x045E: { n:"BrtBeginSXEdit" },
  0x045F: { n:"BrtEndSXEdit" },
  0x0460: { n:"BrtBeginSXEdits" },
  0x0461: { n:"BrtEndSXEdits" },
  0x0462: { n:"BrtBeginSXChange" },
  0x0463: { n:"BrtEndSXChange" },
  0x0464: { n:"BrtBeginSXChanges" },
  0x0465: { n:"BrtEndSXChanges" },
  0x0466: { n:"BrtSXTupleItems" },
  0x0468: { n:"BrtBeginSlicerStyle" },
  0x0469: { n:"BrtEndSlicerStyle" },
  0x046A: { n:"BrtSlicerStyleElement" },
  0x046B: { n:"BrtBeginStyleSheetExt14" },
  0x046C: { n:"BrtEndStyleSheetExt14" },
  0x046D: { n:"BrtBeginSlicerCachesPivotCacheID" },
  0x046E: { n:"BrtEndSlicerCachesPivotCacheID" },
  0x046F: { n:"BrtBeginConditionalFormattings" },
  0x0470: { n:"BrtEndConditionalFormattings" },
  0x0471: { n:"BrtBeginPCDCalcMemExt" },
  0x0472: { n:"BrtEndPCDCalcMemExt" },
  0x0473: { n:"BrtBeginPCDCalcMemsExt" },
  0x0474: { n:"BrtEndPCDCalcMemsExt" },
  0x0475: { n:"BrtPCDField14" },
  0x0476: { n:"BrtBeginSlicerStyles" },
  0x0477: { n:"BrtEndSlicerStyles" },
  0x0478: { n:"BrtBeginSlicerStyleElements" },
  0x0479: { n:"BrtEndSlicerStyleElements" },
  0x047A: { n:"BrtCFRuleExt" },
  0x047B: { n:"BrtBeginSXCondFmt14" },
  0x047C: { n:"BrtEndSXCondFmt14" },
  0x047D: { n:"BrtBeginSXCondFmts14" },
  0x047E: { n:"BrtEndSXCondFmts14" },
  0x0480: { n:"BrtBeginSortCond14" },
  0x0481: { n:"BrtEndSortCond14" },
  0x0482: { n:"BrtEndDVals14" },
  0x0483: { n:"BrtEndIconSet14" },
  0x0484: { n:"BrtEndDatabar14" },
  0x0485: { n:"BrtBeginColorScale14" },
  0x0486: { n:"BrtEndColorScale14" },
  0x0487: { n:"BrtBeginSxrules14" },
  0x0488: { n:"BrtEndSxrules14" },
  0x0489: { n:"BrtBeginPRule14" },
  0x048A: { n:"BrtEndPRule14" },
  0x048B: { n:"BrtBeginPRFilters14" },
  0x048C: { n:"BrtEndPRFilters14" },
  0x048D: { n:"BrtBeginPRFilter14" },
  0x048E: { n:"BrtEndPRFilter14" },
  0x048F: { n:"BrtBeginPRFItem14" },
  0x0490: { n:"BrtEndPRFItem14" },
  0x0491: { n:"BrtBeginCellIgnoreECs14" },
  0x0492: { n:"BrtEndCellIgnoreECs14" },
  0x0493: { n:"BrtDxf14" },
  0x0494: { n:"BrtBeginDxF14s" },
  0x0495: { n:"BrtEndDxf14s" },
  0x0499: { n:"BrtFilter14" },
  0x049A: { n:"BrtBeginCustomFilters14" },
  0x049C: { n:"BrtCustomFilter14" },
  0x049D: { n:"BrtIconFilter14" },
  0x049E: { n:"BrtPivotCacheConnectionName" },
  0x0800: { n:"BrtBeginDecoupledPivotCacheIDs" },
  0x0801: { n:"BrtEndDecoupledPivotCacheIDs" },
  0x0802: { n:"BrtDecoupledPivotCacheID" },
  0x0803: { n:"BrtBeginPivotTableRefs" },
  0x0804: { n:"BrtEndPivotTableRefs" },
  0x0805: { n:"BrtPivotTableRef" },
  0x0806: { n:"BrtSlicerCacheBookPivotTables" },
  0x0807: { n:"BrtBeginSxvcells" },
  0x0808: { n:"BrtEndSxvcells" },
  0x0809: { n:"BrtBeginSxRow" },
  0x080A: { n:"BrtEndSxRow" },
  0x080C: { n:"BrtPcdCalcMem15" },
  0x0813: { n:"BrtQsi15" },
  0x0814: { n:"BrtBeginWebExtensions" },
  0x0815: { n:"BrtEndWebExtensions" },
  0x0816: { n:"BrtWebExtension" },
  0x0817: { n:"BrtAbsPath15" },
  0x0818: { n:"BrtBeginPivotTableUISettings" },
  0x0819: { n:"BrtEndPivotTableUISettings" },
  0x081B: { n:"BrtTableSlicerCacheIDs" },
  0x081C: { n:"BrtTableSlicerCacheID" },
  0x081D: { n:"BrtBeginTableSlicerCache" },
  0x081E: { n:"BrtEndTableSlicerCache" },
  0x081F: { n:"BrtSxFilter15" },
  0x0820: { n:"BrtBeginTimelineCachePivotCacheIDs" },
  0x0821: { n:"BrtEndTimelineCachePivotCacheIDs" },
  0x0822: { n:"BrtTimelineCachePivotCacheID" },
  0x0823: { n:"BrtBeginTimelineCacheIDs" },
  0x0824: { n:"BrtEndTimelineCacheIDs" },
  0x0825: { n:"BrtBeginTimelineCacheID" },
  0x0826: { n:"BrtEndTimelineCacheID" },
  0x0827: { n:"BrtBeginTimelinesEx" },
  0x0828: { n:"BrtEndTimelinesEx" },
  0x0829: { n:"BrtBeginTimelineEx" },
  0x082A: { n:"BrtEndTimelineEx" },
  0x082B: { n:"BrtWorkBookPr15" },
  0x082C: { n:"BrtPCDH15" },
  0x082D: { n:"BrtBeginTimelineStyle" },
  0x082E: { n:"BrtEndTimelineStyle" },
  0x082F: { n:"BrtTimelineStyleElement" },
  0x0830: { n:"BrtBeginTimelineStylesheetExt15" },
  0x0831: { n:"BrtEndTimelineStylesheetExt15" },
  0x0832: { n:"BrtBeginTimelineStyles" },
  0x0833: { n:"BrtEndTimelineStyles" },
  0x0834: { n:"BrtBeginTimelineStyleElements" },
  0x0835: { n:"BrtEndTimelineStyleElements" },
  0x0836: { n:"BrtDxf15" },
  0x0837: { n:"BrtBeginDxfs15" },
  0x0838: { n:"brtEndDxfs15" },
  0x0839: { n:"BrtSlicerCacheHideItemsWithNoData" },
  0x083A: { n:"BrtBeginItemUniqueNames" },
  0x083B: { n:"BrtEndItemUniqueNames" },
  0x083C: { n:"BrtItemUniqueName" },
  0x083D: { n:"BrtBeginExtConn15" },
  0x083E: { n:"BrtEndExtConn15" },
  0x083F: { n:"BrtBeginOledbPr15" },
  0x0840: { n:"BrtEndOledbPr15" },
  0x0841: { n:"BrtBeginDataFeedPr15" },
  0x0842: { n:"BrtEndDataFeedPr15" },
  0x0843: { n:"BrtTextPr15" },
  0x0844: { n:"BrtRangePr15" },
  0x0845: { n:"BrtDbCommand15" },
  0x0846: { n:"BrtBeginDbTables15" },
  0x0847: { n:"BrtEndDbTables15" },
  0x0848: { n:"BrtDbTable15" },
  0x0849: { n:"BrtBeginDataModel" },
  0x084A: { n:"BrtEndDataModel" },
  0x084B: { n:"BrtBeginModelTables" },
  0x084C: { n:"BrtEndModelTables" },
  0x084D: { n:"BrtModelTable" },
  0x084E: { n:"BrtBeginModelRelationships" },
  0x084F: { n:"BrtEndModelRelationships" },
  0x0850: { n:"BrtModelRelationship" },
  0x0851: { n:"BrtBeginECTxtWiz15" },
  0x0852: { n:"BrtEndECTxtWiz15" },
  0x0853: { n:"BrtBeginECTWFldInfoLst15" },
  0x0854: { n:"BrtEndECTWFldInfoLst15" },
  0x0855: { n:"BrtBeginECTWFldInfo15" },
  0x0856: { n:"BrtFieldListActiveItem" },
  0x0857: { n:"BrtPivotCacheIdVersion" },
  0x0858: { n:"BrtSXDI15" },
  0x0859: { n:"BrtBeginModelTimeGroupings" },
  0x085A: { n:"BrtEndModelTimeGroupings" },
  0x085B: { n:"BrtBeginModelTimeGrouping" },
  0x085C: { n:"BrtEndModelTimeGrouping" },
  0x085D: { n:"BrtModelTimeGroupingCalcCol" },
  0x0C00: { n:"BrtUid" },
  0x0C01: { n:"BrtRevisionPtr" },
  0xFFFF: { n:"" }
  };
  
  var XLSBRE = evert_key(XLSBRecordEnum, 'n');
  
  /* [MS-XLS] 2.3 Record Enumeration */
  var XLSRecordEnum = {
  0x0003: { n:"BIFF2NUM", f:parse_BIFF2NUM },
  0x0004: { n:"BIFF2STR", f:parse_BIFF2STR },
  0x0006: { n:"Formula", f:parse_Formula },
  0x0009: { n:'BOF', f:parse_BOF },
  0x000a: { n:'EOF', f:parsenoop2 },
  0x000c: { n:"CalcCount", f:parseuint16 },
  0x000d: { n:"CalcMode", f:parseuint16 },
  0x000e: { n:"CalcPrecision", f:parsebool },
  0x000f: { n:"CalcRefMode", f:parsebool },
  0x0010: { n:"CalcDelta", f:parse_Xnum },
  0x0011: { n:"CalcIter", f:parsebool },
  0x0012: { n:"Protect", f:parsebool },
  0x0013: { n:"Password", f:parseuint16 },
  0x0014: { n:"Header", f:parse_XLHeaderFooter },
  0x0015: { n:"Footer", f:parse_XLHeaderFooter },
  0x0017: { n:"ExternSheet", f:parse_ExternSheet },
  0x0018: { n:"Lbl", f:parse_Lbl },
  0x0019: { n:"WinProtect", f:parsebool },
  0x001a: { n:"VerticalPageBreaks" },
  0x001b: { n:"HorizontalPageBreaks" },
  0x001c: { n:"Note", f:parse_Note },
  0x001d: { n:"Selection" },
  0x0022: { n:"Date1904", f:parsebool },
  0x0023: { n:"ExternName", f:parse_ExternName },
  0x0026: { n:"LeftMargin", f:parse_Xnum },
  0x0027: { n:"RightMargin", f:parse_Xnum },
  0x0028: { n:"TopMargin", f:parse_Xnum },
  0x0029: { n:"BottomMargin", f:parse_Xnum },
  0x002a: { n:"PrintRowCol", f:parsebool },
  0x002b: { n:"PrintGrid", f:parsebool },
  0x002f: { n:"FilePass", f:parse_FilePass },
  0x0031: { n:"Font", f:parse_Font },
  0x0033: { n:"PrintSize", f:parseuint16 },
  0x003c: { n:"Continue" },
  0x003d: { n:"Window1", f:parse_Window1 },
  0x0040: { n:"Backup", f:parsebool },
  0x0041: { n:"Pane" },
  0x0042: { n:'CodePage', f:parseuint16 },
  0x004d: { n:"Pls" },
  0x0050: { n:"DCon" },
  0x0051: { n:"DConRef" },
  0x0052: { n:"DConName" },
  0x0055: { n:"DefColWidth", f:parseuint16 },
  0x0059: { n:"XCT" },
  0x005a: { n:"CRN" },
  0x005b: { n:"FileSharing" },
  0x005c: { n:'WriteAccess', f:parse_WriteAccess },
  0x005d: { n:"Obj", f:parse_Obj },
  0x005e: { n:"Uncalced" },
  0x005f: { n:"CalcSaveRecalc", f:parsebool },
  0x0060: { n:"Template" },
  0x0061: { n:"Intl" },
  0x0063: { n:"ObjProtect", f:parsebool },
  0x007d: { n:"ColInfo", f:parse_ColInfo },
  0x0080: { n:"Guts", f:parse_Guts },
  0x0081: { n:"WsBool", f:parse_WsBool },
  0x0082: { n:"GridSet", f:parseuint16 },
  0x0083: { n:"HCenter", f:parsebool },
  0x0084: { n:"VCenter", f:parsebool },
  0x0085: { n:'BoundSheet8', f:parse_BoundSheet8 },
  0x0086: { n:"WriteProtect" },
  0x008c: { n:"Country", f:parse_Country },
  0x008d: { n:"HideObj", f:parseuint16 },
  0x0090: { n:"Sort" },
  0x0092: { n:"Palette", f:parse_Palette },
  0x0097: { n:"Sync" },
  0x0098: { n:"LPr" },
  0x0099: { n:"DxGCol" },
  0x009a: { n:"FnGroupName" },
  0x009b: { n:"FilterMode" },
  0x009c: { n:"BuiltInFnGroupCount", f:parseuint16 },
  0x009d: { n:"AutoFilterInfo" },
  0x009e: { n:"AutoFilter" },
  0x00a0: { n:"Scl", f:parse_Scl },
  0x00a1: { n:"Setup", f:parse_Setup },
  0x00ae: { n:"ScenMan" },
  0x00af: { n:"SCENARIO" },
  0x00b0: { n:"SxView" },
  0x00b1: { n:"Sxvd" },
  0x00b2: { n:"SXVI" },
  0x00b4: { n:"SxIvd" },
  0x00b5: { n:"SXLI" },
  0x00b6: { n:"SXPI" },
  0x00b8: { n:"DocRoute" },
  0x00b9: { n:"RecipName" },
  0x00bd: { n:"MulRk", f:parse_MulRk },
  0x00be: { n:"MulBlank", f:parse_MulBlank },
  0x00c1: { n:'Mms', f:parsenoop2 },
  0x00c5: { n:"SXDI" },
  0x00c6: { n:"SXDB" },
  0x00c7: { n:"SXFDB" },
  0x00c8: { n:"SXDBB" },
  0x00c9: { n:"SXNum" },
  0x00ca: { n:"SxBool", f:parsebool },
  0x00cb: { n:"SxErr" },
  0x00cc: { n:"SXInt" },
  0x00cd: { n:"SXString" },
  0x00ce: { n:"SXDtr" },
  0x00cf: { n:"SxNil" },
  0x00d0: { n:"SXTbl" },
  0x00d1: { n:"SXTBRGIITM" },
  0x00d2: { n:"SxTbpg" },
  0x00d3: { n:"ObProj" },
  0x00d5: { n:"SXStreamID" },
  0x00d7: { n:"DBCell" },
  0x00d8: { n:"SXRng" },
  0x00d9: { n:"SxIsxoper" },
  0x00da: { n:"BookBool", f:parseuint16 },
  0x00dc: { n:"DbOrParamQry" },
  0x00dd: { n:"ScenarioProtect", f:parsebool },
  0x00de: { n:"OleObjectSize" },
  0x00e0: { n:"XF", f:parse_XF },
  0x00e1: { n:'InterfaceHdr', f:parse_InterfaceHdr },
  0x00e2: { n:'InterfaceEnd', f:parsenoop2 },
  0x00e3: { n:"SXVS" },
  0x00e5: { n:"MergeCells", f:parse_MergeCells },
  0x00e9: { n:"BkHim" },
  0x00eb: { n:"MsoDrawingGroup" },
  0x00ec: { n:"MsoDrawing" },
  0x00ed: { n:"MsoDrawingSelection" },
  0x00ef: { n:"PhoneticInfo" },
  0x00f0: { n:"SxRule" },
  0x00f1: { n:"SXEx" },
  0x00f2: { n:"SxFilt" },
  0x00f4: { n:"SxDXF" },
  0x00f5: { n:"SxItm" },
  0x00f6: { n:"SxName" },
  0x00f7: { n:"SxSelect" },
  0x00f8: { n:"SXPair" },
  0x00f9: { n:"SxFmla" },
  0x00fb: { n:"SxFormat" },
  0x00fc: { n:"SST", f:parse_SST },
  0x00fd: { n:"LabelSst", f:parse_LabelSst },
  0x00ff: { n:"ExtSST", f:parse_ExtSST },
  0x0100: { n:"SXVDEx" },
  0x0103: { n:"SXFormula" },
  0x0122: { n:"SXDBEx" },
  0x0137: { n:"RRDInsDel" },
  0x0138: { n:"RRDHead" },
  0x013b: { n:"RRDChgCell" },
  0x013d: { n:"RRTabId", f:parseuint16a },
  0x013e: { n:"RRDRenSheet" },
  0x013f: { n:"RRSort" },
  0x0140: { n:"RRDMove" },
  0x014a: { n:"RRFormat" },
  0x014b: { n:"RRAutoFmt" },
  0x014d: { n:"RRInsertSh" },
  0x014e: { n:"RRDMoveBegin" },
  0x014f: { n:"RRDMoveEnd" },
  0x0150: { n:"RRDInsDelBegin" },
  0x0151: { n:"RRDInsDelEnd" },
  0x0152: { n:"RRDConflict" },
  0x0153: { n:"RRDDefName" },
  0x0154: { n:"RRDRstEtxp" },
  0x015f: { n:"LRng" },
  0x0160: { n:"UsesELFs", f:parsebool },
  0x0161: { n:"DSF", f:parsenoop2 },
  0x0191: { n:"CUsr" },
  0x0192: { n:"CbUsr" },
  0x0193: { n:"UsrInfo" },
  0x0194: { n:"UsrExcl" },
  0x0195: { n:"FileLock" },
  0x0196: { n:"RRDInfo" },
  0x0197: { n:"BCUsrs" },
  0x0198: { n:"UsrChk" },
  0x01a9: { n:"UserBView" },
  0x01aa: { n:"UserSViewBegin" },
  0x01ab: { n:"UserSViewEnd" },
  0x01ac: { n:"RRDUserView" },
  0x01ad: { n:"Qsi" },
  0x01ae: { n:"SupBook", f:parse_SupBook },
  0x01af: { n:"Prot4Rev", f:parsebool },
  0x01b0: { n:"CondFmt" },
  0x01b1: { n:"CF" },
  0x01b2: { n:"DVal" },
  0x01b5: { n:"DConBin" },
  0x01b6: { n:"TxO", f:parse_TxO },
  0x01b7: { n:"RefreshAll", f:parsebool },
  0x01b8: { n:"HLink", f:parse_HLink },
  0x01b9: { n:"Lel" },
  0x01ba: { n:"CodeName", f:parse_XLUnicodeString },
  0x01bb: { n:"SXFDBType" },
  0x01bc: { n:"Prot4RevPass", f:parseuint16 },
  0x01bd: { n:"ObNoMacros" },
  0x01be: { n:"Dv" },
  0x01c0: { n:"Excel9File", f:parsenoop2 },
  0x01c1: { n:"RecalcId", f:parse_RecalcId, r:2},
  0x01c2: { n:"EntExU2", f:parsenoop2 },
  0x0200: { n:"Dimensions", f:parse_Dimensions },
  0x0201: { n:"Blank", f:parse_Blank },
  0x0203: { n:"Number", f:parse_Number },
  0x0204: { n:"Label", f:parse_Label },
  0x0205: { n:"BoolErr", f:parse_BoolErr },
  0x0206: { n:"Formula", f:parse_Formula },
  0x0207: { n:"String", f:parse_String },
  0x0208: { n:'Row', f:parse_Row },
  0x020b: { n:"Index" },
  0x0221: { n:"Array", f:parse_Array },
  0x0225: { n:"DefaultRowHeight", f:parse_DefaultRowHeight },
  0x0236: { n:"Table" },
  0x023e: { n:"Window2", f:parse_Window2 },
  0x027e: { n:"RK", f:parse_RK },
  0x0293: { n:"Style" },
  0x0406: { n:"Formula", f:parse_Formula },
  0x0418: { n:"BigName" },
  0x041e: { n:"Format", f:parse_Format },
  0x043c: { n:"ContinueBigName" },
  0x04bc: { n:"ShrFmla", f:parse_ShrFmla },
  0x0800: { n:"HLinkTooltip", f:parse_HLinkTooltip },
  0x0801: { n:"WebPub" },
  0x0802: { n:"QsiSXTag" },
  0x0803: { n:"DBQueryExt" },
  0x0804: { n:"ExtString" },
  0x0805: { n:"TxtQry" },
  0x0806: { n:"Qsir" },
  0x0807: { n:"Qsif" },
  0x0808: { n:"RRDTQSIF" },
  0x0809: { n:'BOF', f:parse_BOF },
  0x080a: { n:"OleDbConn" },
  0x080b: { n:"WOpt" },
  0x080c: { n:"SXViewEx" },
  0x080d: { n:"SXTH" },
  0x080e: { n:"SXPIEx" },
  0x080f: { n:"SXVDTEx" },
  0x0810: { n:"SXViewEx9" },
  0x0812: { n:"ContinueFrt" },
  0x0813: { n:"RealTimeData" },
  0x0850: { n:"ChartFrtInfo" },
  0x0851: { n:"FrtWrapper" },
  0x0852: { n:"StartBlock" },
  0x0853: { n:"EndBlock" },
  0x0854: { n:"StartObject" },
  0x0855: { n:"EndObject" },
  0x0856: { n:"CatLab" },
  0x0857: { n:"YMult" },
  0x0858: { n:"SXViewLink" },
  0x0859: { n:"PivotChartBits" },
  0x085a: { n:"FrtFontList" },
  0x0862: { n:"SheetExt" },
  0x0863: { n:"BookExt", r:12},
  0x0864: { n:"SXAddl" },
  0x0865: { n:"CrErr" },
  0x0866: { n:"HFPicture" },
  0x0867: { n:'FeatHdr', f:parsenoop2 },
  0x0868: { n:"Feat" },
  0x086a: { n:"DataLabExt" },
  0x086b: { n:"DataLabExtContents" },
  0x086c: { n:"CellWatch" },
  0x0871: { n:"FeatHdr11" },
  0x0872: { n:"Feature11" },
  0x0874: { n:"DropDownObjIds" },
  0x0875: { n:"ContinueFrt11" },
  0x0876: { n:"DConn" },
  0x0877: { n:"List12" },
  0x0878: { n:"Feature12" },
  0x0879: { n:"CondFmt12" },
  0x087a: { n:"CF12" },
  0x087b: { n:"CFEx" },
  0x087c: { n:"XFCRC", f:parse_XFCRC, r:12 },
  0x087d: { n:"XFExt", f:parse_XFExt, r:12 },
  0x087e: { n:"AutoFilter12" },
  0x087f: { n:"ContinueFrt12" },
  0x0884: { n:"MDTInfo" },
  0x0885: { n:"MDXStr" },
  0x0886: { n:"MDXTuple" },
  0x0887: { n:"MDXSet" },
  0x0888: { n:"MDXProp" },
  0x0889: { n:"MDXKPI" },
  0x088a: { n:"MDB" },
  0x088b: { n:"PLV" },
  0x088c: { n:"Compat12", f:parsebool, r:12 },
  0x088d: { n:"DXF" },
  0x088e: { n:"TableStyles", r:12 },
  0x088f: { n:"TableStyle" },
  0x0890: { n:"TableStyleElement" },
  0x0892: { n:"StyleExt" },
  0x0893: { n:"NamePublish" },
  0x0894: { n:"NameCmt", f:parse_NameCmt, r:12 },
  0x0895: { n:"SortData" },
  0x0896: { n:"Theme", f:parse_Theme, r:12 },
  0x0897: { n:"GUIDTypeLib" },
  0x0898: { n:"FnGrp12" },
  0x0899: { n:"NameFnGrp12" },
  0x089a: { n:"MTRSettings", f:parse_MTRSettings, r:12 },
  0x089b: { n:"CompressPictures", f:parsenoop2 },
  0x089c: { n:"HeaderFooter" },
  0x089d: { n:"CrtLayout12" },
  0x089e: { n:"CrtMlFrt" },
  0x089f: { n:"CrtMlFrtContinue" },
  0x08a3: { n:"ForceFullCalculation", f:parse_ForceFullCalculation },
  0x08a4: { n:"ShapePropsStream" },
  0x08a5: { n:"TextPropsStream" },
  0x08a6: { n:"RichTextStream" },
  0x08a7: { n:"CrtLayout12A" },
  0x1001: { n:"Units" },
  0x1002: { n:"Chart" },
  0x1003: { n:"Series" },
  0x1006: { n:"DataFormat" },
  0x1007: { n:"LineFormat" },
  0x1009: { n:"MarkerFormat" },
  0x100a: { n:"AreaFormat" },
  0x100b: { n:"PieFormat" },
  0x100c: { n:"AttachedLabel" },
  0x100d: { n:"SeriesText" },
  0x1014: { n:"ChartFormat" },
  0x1015: { n:"Legend" },
  0x1016: { n:"SeriesList" },
  0x1017: { n:"Bar" },
  0x1018: { n:"Line" },
  0x1019: { n:"Pie" },
  0x101a: { n:"Area" },
  0x101b: { n:"Scatter" },
  0x101c: { n:"CrtLine" },
  0x101d: { n:"Axis" },
  0x101e: { n:"Tick" },
  0x101f: { n:"ValueRange" },
  0x1020: { n:"CatSerRange" },
  0x1021: { n:"AxisLine" },
  0x1022: { n:"CrtLink" },
  0x1024: { n:"DefaultText" },
  0x1025: { n:"Text" },
  0x1026: { n:"FontX", f:parseuint16 },
  0x1027: { n:"ObjectLink" },
  0x1032: { n:"Frame" },
  0x1033: { n:"Begin" },
  0x1034: { n:"End" },
  0x1035: { n:"PlotArea" },
  0x103a: { n:"Chart3d" },
  0x103c: { n:"PicF" },
  0x103d: { n:"DropBar" },
  0x103e: { n:"Radar" },
  0x103f: { n:"Surf" },
  0x1040: { n:"RadarArea" },
  0x1041: { n:"AxisParent" },
  0x1043: { n:"LegendException" },
  0x1044: { n:"ShtProps", f:parse_ShtProps },
  0x1045: { n:"SerToCrt" },
  0x1046: { n:"AxesUsed" },
  0x1048: { n:"SBaseRef" },
  0x104a: { n:"SerParent" },
  0x104b: { n:"SerAuxTrend" },
  0x104e: { n:"IFmtRecord" },
  0x104f: { n:"Pos" },
  0x1050: { n:"AlRuns" },
  0x1051: { n:"BRAI" },
  0x105b: { n:"SerAuxErrBar" },
  0x105c: { n:"ClrtClient", f:parse_ClrtClient },
  0x105d: { n:"SerFmt" },
  0x105f: { n:"Chart3DBarShape" },
  0x1060: { n:"Fbi" },
  0x1061: { n:"BopPop" },
  0x1062: { n:"AxcExt" },
  0x1063: { n:"Dat" },
  0x1064: { n:"PlotGrowth" },
  0x1065: { n:"SIIndex" },
  0x1066: { n:"GelFrame" },
  0x1067: { n:"BopPopCustom" },
  0x1068: { n:"Fbi2" },
  
  0x0000: { n:"Dimensions", f:parse_Dimensions },
  0x0002: { n:"BIFF2INT", f:parse_BIFF2INT },
  0x0005: { n:"BoolErr", f:parse_BoolErr },
  0x0007: { n:"String", f:parse_BIFF2STRING },
  0x0008: { n:"BIFF2ROW" },
  0x000b: { n:"Index" },
  0x0016: { n:"ExternCount", f:parseuint16 },
  0x001e: { n:"BIFF2FORMAT", f:parse_BIFF2Format },
  0x001f: { n:"BIFF2FMTCNT" }, /* 16-bit cnt of BIFF2FORMAT records */
  0x0020: { n:"BIFF2COLINFO" },
  0x0021: { n:"Array", f:parse_Array },
  0x0025: { n:"DefaultRowHeight", f:parse_DefaultRowHeight },
  0x0032: { n:"BIFF2FONTXTRA", f:parse_BIFF2FONTXTRA },
  0x0034: { n:"DDEObjName" },
  0x003e: { n:"BIFF2WINDOW2" },
  0x0043: { n:"BIFF2XF" },
  0x0045: { n:"BIFF2FONTCLR" },
  0x0056: { n:"BIFF4FMTCNT" }, /* 16-bit cnt, similar to BIFF2 */
  0x007e: { n:"RK" }, /* Not necessarily same as 0x027e */
  0x007f: { n:"ImData", f:parse_ImData },
  0x0087: { n:"Addin" },
  0x0088: { n:"Edg" },
  0x0089: { n:"Pub" },
  0x0091: { n:"Sub" },
  0x0094: { n:"LHRecord" },
  0x0095: { n:"LHNGraph" },
  0x0096: { n:"Sound" },
  0x00a9: { n:"CoordList" },
  0x00ab: { n:"GCW" },
  0x00bc: { n:"ShrFmla" }, /* Not necessarily same as 0x04bc */
  0x00bf: { n:"ToolbarHdr" },
  0x00c0: { n:"ToolbarEnd" },
  0x00c2: { n:"AddMenu" },
  0x00c3: { n:"DelMenu" },
  0x00d6: { n:"RString", f:parse_RString },
  0x00df: { n:"UDDesc" },
  0x00ea: { n:"TabIdConf" },
  0x0162: { n:"XL5Modify" },
  0x01a5: { n:"FileSharing2" },
  0x0209: { n:'BOF', f:parse_BOF },
  0x0218: { n:"Lbl", f:parse_Lbl },
  0x0223: { n:"ExternName", f:parse_ExternName },
  0x0231: { n:"Font" },
  0x0243: { n:"BIFF3XF" },
  0x0409: { n:'BOF', f:parse_BOF },
  0x0443: { n:"BIFF4XF" },
  0x086d: { n:"FeatInfo" },
  0x0873: { n:"FeatInfo11" },
  0x0881: { n:"SXAddl12" },
  0x08c0: { n:"AutoWebPub" },
  0x08c1: { n:"ListObj" },
  0x08c2: { n:"ListField" },
  0x08c3: { n:"ListDV" },
  0x08c4: { n:"ListCondFmt" },
  0x08c5: { n:"ListCF" },
  0x08c6: { n:"FMQry" },
  0x08c7: { n:"FMSQry" },
  0x08c8: { n:"PLV" },
  0x08c9: { n:"LnExt" },
  0x08ca: { n:"MkrExt" },
  0x08cb: { n:"CrtCoopt" },
  0x08d6: { n:"FRTArchId$", r:12 },
  
  0x7262: {}
  };
  
  var XLSRE = evert_key(XLSRecordEnum, 'n');
  function write_biff_rec(ba, type, payload, length) {
  	var t = +type || +XLSRE[type];
  	if(isNaN(t)) return;
  	var len = length || (payload||[]).length || 0;
  	var o = ba.next(4);
  	o.write_shift(2, t);
  	o.write_shift(2, len);
  	if(len > 0 && is_buf(payload)) ba.push(payload);
  }
  
  function write_BIFF2Cell(out, r, c) {
  	if(!out) out = new_buf(7);
  	out.write_shift(2, r);
  	out.write_shift(2, c);
  	out.write_shift(2, 0);
  	out.write_shift(1, 0);
  	return out;
  }
  
  function write_BIFF2BERR(r, c, val, t) {
  	var out = new_buf(9);
  	write_BIFF2Cell(out, r, c);
  	if(t == 'e') { out.write_shift(1, val); out.write_shift(1, 1); }
  	else { out.write_shift(1, val?1:0); out.write_shift(1, 0); }
  	return out;
  }
  
  /* TODO: codepage, large strings */
  function write_BIFF2LABEL(r, c, val) {
  	var out = new_buf(8 + 2*val.length);
  	write_BIFF2Cell(out, r, c);
  	out.write_shift(1, val.length);
  	out.write_shift(val.length, val, 'sbcs');
  	return out.l < out.length ? out.slice(0, out.l) : out;
  }
  
  function write_ws_biff2_cell(ba, cell, R, C) {
  	if(cell.v != null) switch(cell.t) {
  		case 'd': case 'n':
  			var v = cell.t == 'd' ? datenum(parseDate(cell.v)) : cell.v;
  			if((v == (v|0)) && (v >= 0) && (v < 65536))
  				write_biff_rec(ba, 0x0002, write_BIFF2INT(R, C, v));
  			else
  				write_biff_rec(ba, 0x0003, write_BIFF2NUM(R,C, v));
  			return;
  		case 'b': case 'e': write_biff_rec(ba, 0x0005, write_BIFF2BERR(R, C, cell.v, cell.t)); return;
  		/* TODO: codepage, sst */
  		case 's': case 'str':
  			write_biff_rec(ba, 0x0004, write_BIFF2LABEL(R, C, cell.v));
  			return;
  	}
  	write_biff_rec(ba, 0x0001, write_BIFF2Cell(null, R, C));
  }
  
  function write_ws_biff2(ba, ws, idx, opts) {
  	var dense = Array.isArray(ws);
  	var range = safe_decode_range(ws['!ref'] || "A1"), ref, rr = "", cols = [];
  	if(range.e.c > 0xFF || range.e.r > 0x3FFF) {
  		if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:IV16384");
  		range.e.c = Math.min(range.e.c, 0xFF);
  		range.e.r = Math.min(range.e.c, 0x3FFF);
  		ref = encode_range(range);
  	}
  	for(var R = range.s.r; R <= range.e.r; ++R) {
  		rr = encode_row(R);
  		for(var C = range.s.c; C <= range.e.c; ++C) {
  			if(R === range.s.r) cols[C] = encode_col(C);
  			ref = cols[C] + rr;
  			var cell = dense ? (ws[R]||[])[C] : ws[ref];
  			if(!cell) continue;
  			/* write cell */
  			write_ws_biff2_cell(ba, cell, R, C, opts);
  		}
  	}
  }
  
  /* Based on test files */
  function write_biff2_buf(wb, opts) {
  	var o = opts || {};
  	if(DENSE != null && o.dense == null) o.dense = DENSE;
  	var ba = buf_array();
  	var idx = 0;
  	for(var i=0;i<wb.SheetNames.length;++i) if(wb.SheetNames[i] == o.sheet) idx=i;
  	if(idx == 0 && !!o.sheet && wb.SheetNames[0] != o.sheet) throw new Error("Sheet not found: " + o.sheet);
  	write_biff_rec(ba, 0x0009, write_BOF(wb, 0x10, o));
  	/* ... */
  	write_ws_biff2(ba, wb.Sheets[wb.SheetNames[idx]], idx, o, wb);
  	/* ... */
  	write_biff_rec(ba, 0x000A);
  	return ba.end();
  }
  
  function write_FONTS_biff8(ba, data, opts) {
  	write_biff_rec(ba, "Font", write_Font({
  		sz:12,
  		color: {theme:1},
  		name: "Arial",
  		family: 2,
  		scheme: "minor"
  	}, opts));
  }
  
  
  function write_FMTS_biff8(ba, NF, opts) {
  	if(!NF) return;
  	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
  for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_biff_rec(ba, "Format", write_Format(i, NF[i], opts));
  	});
  }
  
  function write_FEAT(ba, ws) {
  	/* [MS-XLS] 2.4.112 */
  	var o = new_buf(19);
  	o.write_shift(4, 0x867); o.write_shift(4, 0); o.write_shift(4, 0);
  	o.write_shift(2, 3); o.write_shift(1, 1); o.write_shift(4, 0);
  	write_biff_rec(ba, "FeatHdr", o);
  	/* [MS-XLS] 2.4.111 */
  	o = new_buf(39);
  	o.write_shift(4, 0x868); o.write_shift(4, 0); o.write_shift(4, 0);
  	o.write_shift(2, 3); o.write_shift(1, 0); o.write_shift(4, 0);
  	o.write_shift(2, 1); o.write_shift(4, 4); o.write_shift(2, 0);
  	write_Ref8U(safe_decode_range(ws['!ref']||"A1"), o);
  	o.write_shift(4, 4);
  	write_biff_rec(ba, "Feat", o);
  }
  
  function write_CELLXFS_biff8(ba, opts) {
  	for(var i = 0; i < 16; ++i) write_biff_rec(ba, "XF", write_XF({numFmtId:0, style:true}, 0, opts));
  	opts.cellXfs.forEach(function(c) {
  		write_biff_rec(ba, "XF", write_XF(c, 0, opts));
  	});
  }
  
  function write_ws_biff8_hlinks(ba, ws) {
  	for(var R=0; R<ws['!links'].length; ++R) {
  		var HL = ws['!links'][R];
  		write_biff_rec(ba, "HLink", write_HLink(HL));
  		if(HL[1].Tooltip) write_biff_rec(ba, "HLinkTooltip", write_HLinkTooltip(HL));
  	}
  	delete ws['!links'];
  }
  
  function write_ws_biff8_cell(ba, cell, R, C, opts) {
  	var os = 16 + get_cell_style(opts.cellXfs, cell, opts);
  	if(cell.v != null) switch(cell.t) {
  		case 'd': case 'n':
  			var v = cell.t == 'd' ? datenum(parseDate(cell.v)) : cell.v;
  			/* TODO: emit RK as appropriate */
  			write_biff_rec(ba, "Number", write_Number(R, C, v, os, opts));
  			return;
  		case 'b': case 'e': write_biff_rec(ba, 0x0205, write_BoolErr(R, C, cell.v, os, opts, cell.t)); return;
  		/* TODO: codepage, sst */
  		case 's': case 'str':
  			write_biff_rec(ba, "Label", write_Label(R, C, cell.v, os, opts));
  			return;
  	}
  	write_biff_rec(ba, "Blank", write_XLSCell(R, C, os));
  }
  
  /* [MS-XLS] 2.1.7.20.5 */
  function write_ws_biff8(idx, opts, wb) {
  	var ba = buf_array();
  	var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {};
  	var _WB = ((wb||{}).Workbook||{});
  	var _sheet = ((_WB.Sheets||[])[idx]||{});
  	var dense = Array.isArray(ws);
  	var b8 = opts.biff == 8;
  	var ref, rr = "", cols = [];
  	var range = safe_decode_range(ws['!ref'] || "A1");
  	var MAX_ROWS = b8 ? 65536 : 16384;
  	if(range.e.c > 0xFF || range.e.r >= MAX_ROWS) {
  		if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:IV16384");
  		range.e.c = Math.min(range.e.c, 0xFF);
  		range.e.r = Math.min(range.e.c, MAX_ROWS-1);
  	}
  
  	write_biff_rec(ba, 0x0809, write_BOF(wb, 0x10, opts));
  	/* ... */
  	write_biff_rec(ba, "CalcMode", writeuint16(1));
  	write_biff_rec(ba, "CalcCount", writeuint16(100));
  	write_biff_rec(ba, "CalcRefMode", writebool(true));
  	write_biff_rec(ba, "CalcIter", writebool(false));
  	write_biff_rec(ba, "CalcDelta", write_Xnum(0.001));
  	write_biff_rec(ba, "CalcSaveRecalc", writebool(true));
  	write_biff_rec(ba, "PrintRowCol", writebool(false));
  	write_biff_rec(ba, "PrintGrid", writebool(false));
  	write_biff_rec(ba, "GridSet", writeuint16(1));
  	write_biff_rec(ba, "Guts", write_Guts([0,0]));
  	/* ... */
  	write_biff_rec(ba, "HCenter", writebool(false));
  	write_biff_rec(ba, "VCenter", writebool(false));
  	/* ... */
  	write_biff_rec(ba, 0x200, write_Dimensions(range, opts));
  	/* ... */
  
  	if(b8) ws['!links'] = [];
  	for(var R = range.s.r; R <= range.e.r; ++R) {
  		rr = encode_row(R);
  		for(var C = range.s.c; C <= range.e.c; ++C) {
  			if(R === range.s.r) cols[C] = encode_col(C);
  			ref = cols[C] + rr;
  			var cell = dense ? (ws[R]||[])[C] : ws[ref];
  			if(!cell) continue;
  			/* write cell */
  			write_ws_biff8_cell(ba, cell, R, C, opts);
  			if(b8 && cell.l) ws['!links'].push([ref, cell.l]);
  		}
  	}
  	var cname = _sheet.CodeName || _sheet.name || s;
  	/* ... */
  	if(b8 && _WB.Views) write_biff_rec(ba, "Window2", write_Window2(_WB.Views[0]));
  	/* ... */
  	if(b8 && (ws['!merges']||[]).length) write_biff_rec(ba, "MergeCells", write_MergeCells(ws['!merges']));
  	/* ... */
  	if(b8) write_ws_biff8_hlinks(ba, ws);
  	/* ... */
  	write_biff_rec(ba, "CodeName", write_XLUnicodeString(cname, opts));
  	/* ... */
  	if(b8) write_FEAT(ba, ws);
  	/* ... */
  	write_biff_rec(ba, "EOF");
  	return ba.end();
  }
  
  /* [MS-XLS] 2.1.7.20.3 */
  function write_biff8_global(wb, bufs, opts) {
  	var A = buf_array();
  	var _WB = ((wb||{}).Workbook||{});
  	var _sheets = (_WB.Sheets||[]);
  	var _wb = _WB.WBProps||{};
  	var b8 = opts.biff == 8, b5 = opts.biff == 5;
  	write_biff_rec(A, 0x0809, write_BOF(wb, 0x05, opts));
  	if(opts.bookType == "xla") write_biff_rec(A, "Addin");
  	write_biff_rec(A, "InterfaceHdr", b8 ? writeuint16(0x04b0) : null);
  	write_biff_rec(A, "Mms", writezeroes(2));
  	if(b5) write_biff_rec(A, "ToolbarHdr");
  	if(b5) write_biff_rec(A, "ToolbarEnd");
  	write_biff_rec(A, "InterfaceEnd");
  	write_biff_rec(A, "WriteAccess", write_WriteAccess("SheetJS", opts));
  	write_biff_rec(A, "CodePage", writeuint16(b8 ? 0x04b0 : 0x04E4));
  	if(b8) write_biff_rec(A, "DSF", writeuint16(0));
  	if(b8) write_biff_rec(A, "Excel9File");
  	write_biff_rec(A, "RRTabId", write_RRTabId(wb.SheetNames.length));
  	if(b8 && wb.vbaraw) {
  		write_biff_rec(A, "ObProj");
  		var cname = _wb.CodeName || "ThisWorkbook";
  		write_biff_rec(A, "CodeName", write_XLUnicodeString(cname, opts));
  	}
  	write_biff_rec(A, "BuiltInFnGroupCount", writeuint16(0x11));
  	write_biff_rec(A, "WinProtect", writebool(false));
  	write_biff_rec(A, "Protect", writebool(false));
  	write_biff_rec(A, "Password", writeuint16(0));
  	if(b8) write_biff_rec(A, "Prot4Rev", writebool(false));
  	if(b8) write_biff_rec(A, "Prot4RevPass", writeuint16(0));
  	write_biff_rec(A, "Window1", write_Window1(opts));
  	write_biff_rec(A, "Backup", writebool(false));
  	write_biff_rec(A, "HideObj", writeuint16(0));
  	write_biff_rec(A, "Date1904", writebool(safe1904(wb)=="true"));
  	write_biff_rec(A, "CalcPrecision", writebool(true));
  	if(b8) write_biff_rec(A, "RefreshAll", writebool(false));
  	write_biff_rec(A, "BookBool", writeuint16(0));
  	/* ... */
  	write_FONTS_biff8(A, wb, opts);
  	write_FMTS_biff8(A, wb.SSF, opts);
  	write_CELLXFS_biff8(A, opts);
  	/* ... */
  	if(b8) write_biff_rec(A, "UsesELFs", writebool(false));
  	var a = A.end();
  
  	var C = buf_array();
  	if(b8) write_biff_rec(C, "Country", write_Country());
  	/* BIFF8: [SST *Continue] ExtSST */
  	write_biff_rec(C, "EOF");
  	var c = C.end();
  
  	var B = buf_array();
  	var blen = 0, j = 0;
  	for(j = 0; j < wb.SheetNames.length; ++j) blen += (b8 ? 12 : 11) + (b8 ? 2 : 1) * wb.SheetNames[j].length;
  	var start = a.length + blen + c.length;
  	for(j = 0; j < wb.SheetNames.length; ++j) {
  		var _sheet = _sheets[j] || ({});
  		write_biff_rec(B, "BoundSheet8", write_BoundSheet8({pos:start, hs:_sheet.Hidden||0, dt:0, name:wb.SheetNames[j]}, opts));
  		start += bufs[j].length;
  	}
  	/* 1*BoundSheet8 */
  	var b = B.end();
  	if(blen != b.length) throw new Error("BS8 " + blen + " != " + b.length);
  
  	var out = [];
  	if(a.length) out.push(a);
  	if(b.length) out.push(b);
  	if(c.length) out.push(c);
  	return __toBuffer([out]);
  }
  
  /* [MS-XLS] 2.1.7.20 Workbook Stream */
  function write_biff8_buf(wb, opts) {
  	var o = opts || {};
  	var bufs = [];
  
  	if(wb && !wb.SSF) {
  		wb.SSF = SSF.get_table();
  	}
  	if(wb && wb.SSF) {
  		make_ssf(SSF); SSF.load_table(wb.SSF);
  		// $FlowIgnore
  		o.revssf = evert_num(wb.SSF); o.revssf[wb.SSF[65535]] = 0;
  		o.ssf = wb.SSF;
  	}
  	o.cellXfs = [];
  	o.Strings = []; o.Strings.Count = 0; o.Strings.Unique = 0;
  	get_cell_style(o.cellXfs, {}, {revssf:{"General":0}});
  
  	for(var i = 0; i < wb.SheetNames.length; ++i) bufs[bufs.length] = write_ws_biff8(i, o, wb);
  	bufs.unshift(write_biff8_global(wb, bufs, o));
  	return __toBuffer([bufs]);
  }
  
  function write_biff_buf(wb, opts) {
  	var o = opts || {};
  	switch(o.biff || 2) {
  		case 8: case 5: return write_biff8_buf(wb, opts);
  		case 4: case 3: case 2: return write_biff2_buf(wb, opts);
  	}
  	throw new Error("invalid type " + o.bookType + " for BIFF");
  }
  /* note: browser DOM element cannot see mso- style attrs, must parse */
  var HTML_ = (function() {
  	function html_to_sheet(str, _opts) {
  		var opts = _opts || {};
  		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
  		var ws = opts.dense ? ([]) : ({});
  		var mtch = str.match(/<table/i);
  		if(!mtch) throw new Error("Invalid HTML: could not find <table>");
  		var mtch2 = str.match(/<\/table/i);
  		var i = mtch.index, j = mtch2 && mtch2.index || str.length;
  		var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
  		var R = -1, C = 0, RS = 0, CS = 0;
  		var range = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
  		var merges = [];
  		for(i = 0; i < rows.length; ++i) {
  			var row = rows[i].trim();
  			var hd = row.slice(0,3).toLowerCase();
  			if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
  			if(hd != "<td" && hd != "<th") continue;
  			var cells = row.split(/<\/t[dh]>/i);
  			for(j = 0; j < cells.length; ++j) {
  				var cell = cells[j].trim();
  				if(!cell.match(/<t[dh]/i)) continue;
  				var m = cell, cc = 0;
  				/* TODO: parse styles etc */
  				while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
  				var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
  				CS = tag.colspan ? +tag.colspan : 1;
  				if((RS = +tag.rowspan)>1 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
  				var _t = tag.t || "";
  				/* TODO: generate stub cells */
  				if(!m.length) { C += CS; continue; }
  				m = htmldecode(m);
  				if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
  				if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
  				if(!m.length) continue;
  				var o = {t:'s', v:m};
  				if(opts.raw || !m.trim().length || _t == 's'){}
  				else if(m === 'TRUE') o = {t:'b', v:true};
  				else if(m === 'FALSE') o = {t:'b', v:false};
  				else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
  				else if(!isNaN(fuzzydate(m).getDate())) {
  					o = ({t:'d', v:parseDate(m)});
  					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
  					o.z = opts.dateNF || SSF._table[14];
  				}
  				if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
  				else ws[encode_cell({r:R, c:C})] = o;
  				C += CS;
  			}
  		}
  		ws['!ref'] = encode_range(range);
  		return ws;
  	}
  	function html_to_book(str, opts) {
  		return sheet_to_workbook(html_to_sheet(str, opts), opts);
  	}
  	function make_html_row(ws, r, R, o) {
  		var M = (ws['!merges'] ||[]);
  		var oo = [];
  		for(var C = r.s.c; C <= r.e.c; ++C) {
  			var RS = 0, CS = 0;
  			for(var j = 0; j < M.length; ++j) {
  				if(M[j].s.r > R || M[j].s.c > C) continue;
  				if(M[j].e.r < R || M[j].e.c < C) continue;
  				if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
  				RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
  			}
  			if(RS < 0) continue;
  			var coord = encode_cell({r:R,c:C});
  			var cell = o.dense ? (ws[R]||[])[C] : ws[coord];
  			var sp = {};
  			if(RS > 1) sp.rowspan = RS;
  			if(CS > 1) sp.colspan = CS;
  			/* TODO: html entities */
  			var w = (cell && cell.v != null) && (cell.h || escapehtml(cell.w || (format_cell(cell), cell.w) || "")) || "";
  			sp.t = cell && cell.t || 'z';
  			if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
  			sp.id = "sjs-" + coord;
  			oo.push(writextag('td', w, sp));
  		}
  		var preamble = "<tr>";
  		return preamble + oo.join("") + "</tr>";
  	}
  	function make_html_preamble(ws, R, o) {
  		var out = [];
  		return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
  	}
  	var _BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
  	var _END = '</body></html>';
  	function sheet_to_html(ws, opts/*, wb:?Workbook*/) {
  		var o = opts || {};
  		var header = o.header != null ? o.header : _BEGIN;
  		var footer = o.footer != null ? o.footer : _END;
  		var out = [header];
  		var r = decode_range(ws['!ref']);
  		o.dense = Array.isArray(ws);
  		out.push(make_html_preamble(ws, r, o));
  		for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
  		out.push("</table>" + footer);
  		return out.join("");
  	}
  
  	return {
  		to_workbook: html_to_book,
  		to_sheet: html_to_sheet,
  		_row: make_html_row,
  		BEGIN: _BEGIN,
  		END: _END,
  		_preamble: make_html_preamble,
  		from_sheet: sheet_to_html
  	};
  })();
  
  function parse_dom_table(table, _opts) {
  	var opts = _opts || {};
  	if(DENSE != null) opts.dense = DENSE;
  	var ws = opts.dense ? ([]) : ({});
  	var rows = table.getElementsByTagName('tr');
  	var sheetRows = opts.sheetRows || 10000000;
  	var range = {s:{r:0,c:0},e:{r:0,c:0}};
  	var merges = [], midx = 0;
  	var rowinfo = [];
  	var _R = 0, R = 0, _C, C, RS, CS;
  	for(; _R < rows.length && R < sheetRows; ++_R) {
  		var row = rows[_R];
  		if (is_dom_element_hidden(row)) {
  			if (opts.display) continue;
  			rowinfo[R] = {hidden: true};
  		}
  		var elts = (row.children);
  		for(_C = C = 0; _C < elts.length; ++_C) {
  			var elt = elts[_C];
  			if (opts.display && is_dom_element_hidden(elt)) continue;
  			var v = htmldecode(elt.innerHTML);
  			for(midx = 0; midx < merges.length; ++midx) {
  				var m = merges[midx];
  				if(m.s.c == C && m.s.r <= R && R <= m.e.r) { C = m.e.c+1; midx = -1; }
  			}
  			/* TODO: figure out how to extract nonstandard mso- style */
  			CS = +elt.getAttribute("colspan") || 1;
  			if((RS = +elt.getAttribute("rowspan"))>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
  			var o = {t:'s', v:v};
  			var _t = elt.getAttribute("t") || "";
  			if(v != null) {
  				if(v.length == 0) o.t = _t || 'z';
  				else if(opts.raw || v.trim().length == 0 || _t == "s"){}
  				else if(v === 'TRUE') o = {t:'b', v:true};
  				else if(v === 'FALSE') o = {t:'b', v:false};
  				else if(!isNaN(fuzzynum(v))) o = {t:'n', v:fuzzynum(v)};
  				else if(!isNaN(fuzzydate(v).getDate())) {
  					o = ({t:'d', v:parseDate(v)});
  					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
  					o.z = opts.dateNF || SSF._table[14];
  				}
  			}
  			if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
  			else ws[encode_cell({c:C, r:R})] = o;
  			if(range.e.c < C) range.e.c = C;
  			C += CS;
  		}
  		++R;
  	}
  	if(merges.length) ws['!merges'] = merges;
  	if(rowinfo.length) ws['!rows'] = rowinfo;
  	range.e.r = R - 1;
  	ws['!ref'] = encode_range(range);
  	if(R >= sheetRows) ws['!fullref'] = encode_range((range.e.r = rows.length-_R+R-1,range)); // We can count the real number of rows to parse but we don't to improve the performance
  	return ws;
  }
  
  function table_to_book(table, opts) {
  	return sheet_to_workbook(parse_dom_table(table, opts), opts);
  }
  
  function is_dom_element_hidden(element) {
  	var display = '';
  	var get_computed_style = get_get_computed_style_function(element);
  	if(get_computed_style) display = get_computed_style(element).getPropertyValue('display');
  	if(!display) display = element.style.display; // Fallback for cases when getComputedStyle is not available (e.g. an old browser or some Node.js environments) or doesn't work (e.g. if the element is not inserted to a document)
  	return display === 'none';
  }
  
  /* global getComputedStyle */
  function get_get_computed_style_function(element) {
  	// The proper getComputedStyle implementation is the one defined in the element window
  	if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
  	// If it is not available, try to get one from the global namespace
  	if(typeof getComputedStyle === 'function') return getComputedStyle;
  	return null;
  }
  /* OpenDocument */
  var parse_content_xml = (function() {
  
  	/* 6.1.2 White Space Characters */
  	var parse_text_p = function(text) {
  		return unescapexml(text
  			.replace(/[\t\r\n]/g, " ").trim().replace(/ +/g, " ")
  			.replace(/<text:s\/>/g," ")
  			.replace(/<text:s text:c="(\d+)"\/>/g, function($$,$1) { return Array(parseInt($1,10)+1).join(" "); })
  			.replace(/<text:tab[^>]*\/>/g,"\t")
  			.replace(/<text:line-break\/>/g,"\n")
  			.replace(/<[^>]*>/g,"")
  		);
  	};
  
  	var number_formats = {
  		/* ods name: [short ssf fmt, long ssf fmt] */
  		day:           ["d",   "dd"],
  		month:         ["m",   "mm"],
  		year:          ["y",   "yy"],
  		hours:         ["h",   "hh"],
  		minutes:       ["m",   "mm"],
  		seconds:       ["s",   "ss"],
  		"am-pm":       ["A/P", "AM/PM"],
  		"day-of-week": ["ddd", "dddd"],
  		era:           ["e",   "ee"],
  		/* there is no native representation of LO "Q" format */
  		quarter:       ["\\Qm", "m\\\"th quarter\""]
  	};
  
  	return function pcx(d, _opts) {
  		var opts = _opts || {};
  		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
  		var str = xlml_normalize(d);
  		var state = [], tmp;
  		var tag;
  		var NFtag = {name:""}, NF = "", pidx = 0;
  		var sheetag;
  		var rowtag;
  		var Sheets = {}, SheetNames = [];
  		var ws = opts.dense ? ([]) : ({});
  		var Rn, q;
  		var ctag = ({value:""});
  		var textp = "", textpidx = 0, textptag;
  		var R = -1, C = -1, range = {s: {r:1000000,c:10000000}, e: {r:0, c:0}};
  		var row_ol = 0;
  		var number_format_map = {};
  		var merges = [], mrange = {}, mR = 0, mC = 0;
  		var rowinfo = [], rowpeat = 1, colpeat = 1;
  		var arrayf = [];
  		var WB = {Names:[]};
  		var atag = ({});
  		var _Ref = ["", ""];
  		var comments = [], comment = ({});
  		var creator = "", creatoridx = 0;
  		var isstub = false, intable = false;
  		var i = 0;
  		xlmlregex.lastIndex = 0;
  		str = str.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
  		while((Rn = xlmlregex.exec(str))) switch((Rn[3]=Rn[3].replace(/_.*$/,""))) {
  
  			case 'table': case '工作表': // 9.1.2 <table:table>
  				if(Rn[1]==='/') {
  					if(range.e.c >= range.s.c && range.e.r >= range.s.r) ws['!ref'] = encode_range(range);
  					if(opts.sheetRows > 0 && opts.sheetRows <= range.e.r) {
  						ws['!fullref'] = ws['!ref'];
  						range.e.r = opts.sheetRows - 1;
  						ws['!ref'] = encode_range(range);
  					}
  					if(merges.length) ws['!merges'] = merges;
  					if(rowinfo.length) ws["!rows"] = rowinfo;
  					sheetag.name = sheetag['名称'] || sheetag.name;
  					if(typeof JSON !== 'undefined') JSON.stringify(sheetag);
  					SheetNames.push(sheetag.name);
  					Sheets[sheetag.name] = ws;
  					intable = false;
  				}
  				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
  					sheetag = parsexmltag(Rn[0], false);
  					R = C = -1;
  					range.s.r = range.s.c = 10000000; range.e.r = range.e.c = 0;
  					ws = opts.dense ? ([]) : ({}); merges = [];
  					rowinfo = [];
  					intable = true;
  				}
  				break;
  
  			case 'table-row-group': // 9.1.9 <table:table-row-group>
  				if(Rn[1] === "/") --row_ol; else ++row_ol;
  				break;
  			case 'table-row': case '行': // 9.1.3 <table:table-row>
  				if(Rn[1] === '/') { R+=rowpeat; rowpeat = 1; break; }
  				rowtag = parsexmltag(Rn[0], false);
  				if(rowtag['行号']) R = rowtag['行号'] - 1; else if(R == -1) R = 0;
  				rowpeat = +rowtag['number-rows-repeated'] || 1;
  				/* TODO: remove magic */
  				if(rowpeat < 10) for(i = 0; i < rowpeat; ++i) if(row_ol > 0) rowinfo[R + i] = {level: row_ol};
  				C = -1; break;
  			case 'covered-table-cell': // 9.1.5 <table:covered-table-cell>
  				++C;
  				if(opts.sheetStubs) {
  					if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = {t:'z'}; }
  					else ws[encode_cell({r:R,c:C})] = {t:'z'};
  				}
  				break; /* stub */
  			case 'table-cell': case '数据':
  				if(Rn[0].charAt(Rn[0].length-2) === '/') {
  					++C;
  					ctag = parsexmltag(Rn[0], false);
  					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
  					q = ({t:'z', v:null});
  					if(ctag.formula && opts.cellFormula != false) q.f = ods_to_csf_formula(unescapexml(ctag.formula));
  					if((ctag['数据类型'] || ctag['value-type']) == "string") {
  						q.t = "s"; q.v = unescapexml(ctag['string-value'] || "");
  						if(opts.dense) {
  							if(!ws[R]) ws[R] = [];
  							ws[R][C] = q;
  						} else {
  							ws[encode_cell({r:R,c:C})] = q;
  						}
  					}
  					C+= colpeat-1;
  				} else if(Rn[1]!=='/') {
  					++C;
  					colpeat = 1;
  					var rptR = rowpeat ? R + rowpeat - 1 : R;
  					if(C > range.e.c) range.e.c = C;
  					if(C < range.s.c) range.s.c = C;
  					if(R < range.s.r) range.s.r = R;
  					if(rptR > range.e.r) range.e.r = rptR;
  					ctag = parsexmltag(Rn[0], false);
  					comments = []; comment = ({});
  					q = ({t:ctag['数据类型'] || ctag['value-type'], v:null});
  					if(opts.cellFormula) {
  						if(ctag.formula) ctag.formula = unescapexml(ctag.formula);
  						if(ctag['number-matrix-columns-spanned'] && ctag['number-matrix-rows-spanned']) {
  							mR = parseInt(ctag['number-matrix-rows-spanned'],10) || 0;
  							mC = parseInt(ctag['number-matrix-columns-spanned'],10) || 0;
  							mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
  							q.F = encode_range(mrange);
  							arrayf.push([mrange, q.F]);
  						}
  						if(ctag.formula) q.f = ods_to_csf_formula(ctag.formula);
  						else for(i = 0; i < arrayf.length; ++i)
  							if(R >= arrayf[i][0].s.r && R <= arrayf[i][0].e.r)
  								if(C >= arrayf[i][0].s.c && C <= arrayf[i][0].e.c)
  									q.F = arrayf[i][1];
  					}
  					if(ctag['number-columns-spanned'] || ctag['number-rows-spanned']) {
  						mR = parseInt(ctag['number-rows-spanned'],10) || 0;
  						mC = parseInt(ctag['number-columns-spanned'],10) || 0;
  						mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
  						merges.push(mrange);
  					}
  
  					/* 19.675.2 table:number-columns-repeated */
  					if(ctag['number-columns-repeated']) colpeat = parseInt(ctag['number-columns-repeated'], 10);
  
  					/* 19.385 office:value-type */
  					switch(q.t) {
  						case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']); break;
  						case 'float': q.t = 'n'; q.v = parseFloat(ctag.value); break;
  						case 'percentage': q.t = 'n'; q.v = parseFloat(ctag.value); break;
  						case 'currency': q.t = 'n'; q.v = parseFloat(ctag.value); break;
  						case 'date': q.t = 'd'; q.v = parseDate(ctag['date-value']);
  							if(!opts.cellDates) { q.t = 'n'; q.v = datenum(q.v); }
  							q.z = 'm/d/yy'; break;
  						case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400; break;
  						case 'number': q.t = 'n'; q.v = parseFloat(ctag['数据数值']); break;
  						default:
  							if(q.t === 'string' || q.t === 'text' || !q.t) {
  								q.t = 's';
  								if(ctag['string-value'] != null) textp = unescapexml(ctag['string-value']);
  							} else throw new Error('Unsupported value type ' + q.t);
  					}
  				} else {
  					isstub = false;
  					if(q.t === 's') {
  						q.v = textp || '';
  						isstub = textpidx == 0;
  					}
  					if(atag.Target) q.l = atag;
  					if(comments.length > 0) { q.c = comments; comments = []; }
  					if(textp && opts.cellText !== false) q.w = textp;
  					if(!isstub || opts.sheetStubs) {
  						if(!(opts.sheetRows && opts.sheetRows <= R)) {
  							for(var rpt = 0; rpt < rowpeat; ++rpt) {
  								colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
  								if(opts.dense) {
  									if(!ws[R + rpt]) ws[R + rpt] = [];
  									ws[R + rpt][C] = rpt == 0 ? q : dup(q);
  									while(--colpeat > 0) ws[R + rpt][C + colpeat] = dup(q);
  								} else {
  									ws[encode_cell({r:R + rpt,c:C})] = q;
  									while(--colpeat > 0) ws[encode_cell({r:R + rpt,c:C + colpeat})] = dup(q);
  								}
  								if(range.e.c <= C) range.e.c = C;
  							}
  						}
  					}
  					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
  					C += colpeat-1; colpeat = 0;
  					q = {};
  					textp = "";
  				}
  				atag = ({});
  				break; // 9.1.4 <table:table-cell>
  
  			/* pure state */
  			case 'document': // TODO: <office:document> is the root for FODS
  			case 'document-content': case '电子表格文档': // 3.1.3.2 <office:document-content>
  			case 'spreadsheet': case '主体': // 3.7 <office:spreadsheet>
  			case 'scripts': // 3.12 <office:scripts>
  			case 'styles': // TODO <office:styles>
  			case 'font-face-decls': // 3.14 <office:font-face-decls>
  				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
  				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
  				break;
  
  			case 'annotation': // 14.1 <office:annotation>
  				if(Rn[1]==='/'){
  					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
  					comment.t = textp;
  					comment.a = creator;
  					comments.push(comment);
  				}
  				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {state.push([Rn[3], false]);}
  				creator = ""; creatoridx = 0;
  				textp = ""; textpidx = 0;
  				break;
  
  			case 'creator': // 4.3.2.7 <dc:creator>
  				if(Rn[1]==='/') { creator = str.slice(creatoridx,Rn.index); }
  				else creatoridx = Rn.index + Rn[0].length;
  				break;
  
  			/* ignore state */
  			case 'meta': case '元数据': // TODO: <office:meta> <uof:元数据> FODS/UOF
  			case 'settings': // TODO: <office:settings>
  			case 'config-item-set': // TODO: <office:config-item-set>
  			case 'config-item-map-indexed': // TODO: <office:config-item-map-indexed>
  			case 'config-item-map-entry': // TODO: <office:config-item-map-entry>
  			case 'config-item-map-named': // TODO: <office:config-item-map-entry>
  			case 'shapes': // 9.2.8 <table:shapes>
  			case 'frame': // 10.4.2 <draw:frame>
  			case 'text-box': // 10.4.3 <draw:text-box>
  			case 'image': // 10.4.4 <draw:image>
  			case 'data-pilot-tables': // 9.6.2 <table:data-pilot-tables>
  			case 'list-style': // 16.30 <text:list-style>
  			case 'form': // 13.13 <form:form>
  			case 'dde-links': // 9.8 <table:dde-links>
  			case 'event-listeners': // TODO
  			case 'chart': // TODO
  				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
  				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], false]);
  				textp = ""; textpidx = 0;
  				break;
  
  			case 'scientific-number': // TODO: <number:scientific-number>
  				break;
  			case 'currency-symbol': // TODO: <number:currency-symbol>
  				break;
  			case 'currency-style': // TODO: <number:currency-style>
  				break;
  			case 'number-style': // 16.27.2 <number:number-style>
  			case 'percentage-style': // 16.27.9 <number:percentage-style>
  			case 'date-style': // 16.27.10 <number:date-style>
  			case 'time-style': // 16.27.18 <number:time-style>
  				if(Rn[1]==='/'){
  					number_format_map[NFtag.name] = NF;
  					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
  				} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
  					NF = "";
  					NFtag = parsexmltag(Rn[0], false);
  					state.push([Rn[3], true]);
  				} break;
  
  			case 'script': break; // 3.13 <office:script>
  			case 'libraries': break; // TODO: <ooo:libraries>
  			case 'automatic-styles': break; // 3.15.3 <office:automatic-styles>
  			case 'master-styles': break; // TODO: <office:master-styles>
  
  			case 'default-style': // TODO: <style:default-style>
  			case 'page-layout': break; // TODO: <style:page-layout>
  			case 'style': break; // 16.2 <style:style>
  			case 'map': break; // 16.3 <style:map>
  			case 'font-face': break; // 16.21 <style:font-face>
  
  			case 'paragraph-properties': break; // 17.6 <style:paragraph-properties>
  			case 'table-properties': break; // 17.15 <style:table-properties>
  			case 'table-column-properties': break; // 17.16 <style:table-column-properties>
  			case 'table-row-properties': break; // 17.17 <style:table-row-properties>
  			case 'table-cell-properties': break; // 17.18 <style:table-cell-properties>
  
  			case 'number': // 16.27.3 <number:number>
  				switch(state[state.length-1][0]) {
  					case 'time-style':
  					case 'date-style':
  						tag = parsexmltag(Rn[0], false);
  						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
  				} break;
  
  			case 'fraction': break; // TODO 16.27.6 <number:fraction>
  
  			case 'day': // 16.27.11 <number:day>
  			case 'month': // 16.27.12 <number:month>
  			case 'year': // 16.27.13 <number:year>
  			case 'era': // 16.27.14 <number:era>
  			case 'day-of-week': // 16.27.15 <number:day-of-week>
  			case 'week-of-year': // 16.27.16 <number:week-of-year>
  			case 'quarter': // 16.27.17 <number:quarter>
  			case 'hours': // 16.27.19 <number:hours>
  			case 'minutes': // 16.27.20 <number:minutes>
  			case 'seconds': // 16.27.21 <number:seconds>
  			case 'am-pm': // 16.27.22 <number:am-pm>
  				switch(state[state.length-1][0]) {
  					case 'time-style':
  					case 'date-style':
  						tag = parsexmltag(Rn[0], false);
  						NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
  				} break;
  
  			case 'boolean-style': break; // 16.27.23 <number:boolean-style>
  			case 'boolean': break; // 16.27.24 <number:boolean>
  			case 'text-style': break; // 16.27.25 <number:text-style>
  			case 'text': // 16.27.26 <number:text>
  				if(Rn[0].slice(-2) === "/>") break;
  				else if(Rn[1]==="/") switch(state[state.length-1][0]) {
  					case 'number-style':
  					case 'date-style':
  					case 'time-style':
  						NF += str.slice(pidx, Rn.index);
  						break;
  				}
  				else pidx = Rn.index + Rn[0].length;
  				break;
  
  			case 'named-range': // 9.4.12 <table:named-range>
  				tag = parsexmltag(Rn[0], false);
  				_Ref = ods_to_csf_3D(tag['cell-range-address']);
  				var nrange = ({Name:tag.name, Ref:_Ref[0] + '!' + _Ref[1]});
  				if(intable) nrange.Sheet = SheetNames.length;
  				WB.Names.push(nrange);
  				break;
  
  			case 'text-content': break; // 16.27.27 <number:text-content>
  			case 'text-properties': break; // 16.27.27 <style:text-properties>
  			case 'embedded-text': break; // 16.27.4 <number:embedded-text>
  
  			case 'body': case '电子表格': break; // 3.3 16.9.6 19.726.3
  
  			case 'forms': break; // 12.25.2 13.2
  			case 'table-column': break; // 9.1.6 <table:table-column>
  			case 'table-header-rows': break; // 9.1.7 <table:table-header-rows>
  			case 'table-rows': break; // 9.1.12 <table:table-rows>
  			/* TODO: outline levels */
  			case 'table-column-group': break; // 9.1.10 <table:table-column-group>
  			case 'table-header-columns': break; // 9.1.11 <table:table-header-columns>
  			case 'table-columns': break; // 9.1.12 <table:table-columns>
  
  			case 'null-date': break; // 9.4.2 <table:null-date> TODO: date1904
  
  			case 'graphic-properties': break; // 17.21 <style:graphic-properties>
  			case 'calculation-settings': break; // 9.4.1 <table:calculation-settings>
  			case 'named-expressions': break; // 9.4.11 <table:named-expressions>
  			case 'label-range': break; // 9.4.9 <table:label-range>
  			case 'label-ranges': break; // 9.4.10 <table:label-ranges>
  			case 'named-expression': break; // 9.4.13 <table:named-expression>
  			case 'sort': break; // 9.4.19 <table:sort>
  			case 'sort-by': break; // 9.4.20 <table:sort-by>
  			case 'sort-groups': break; // 9.4.22 <table:sort-groups>
  
  			case 'tab': break; // 6.1.4 <text:tab>
  			case 'line-break': break; // 6.1.5 <text:line-break>
  			case 'span': break; // 6.1.7 <text:span>
  			case 'p': case '文本串': // 5.1.3 <text:p>
  				if(Rn[1]==='/' && (!ctag || !ctag['string-value'])) textp = (textp.length > 0 ? textp + "\n" : "") + parse_text_p(str.slice(textpidx,Rn.index), textptag);
  				else { textptag = parsexmltag(Rn[0], false); textpidx = Rn.index + Rn[0].length; }
  				break; // <text:p>
  			case 's': break; // <text:s>
  
  			case 'database-range': // 9.4.15 <table:database-range>
  				if(Rn[1]==='/') break;
  				try {
  					_Ref = ods_to_csf_3D(parsexmltag(Rn[0])['target-range-address']);
  					Sheets[_Ref[0]]['!autofilter'] = { ref:_Ref[1] };
  				} catch(e) {/* empty */}
  				break;
  
  			case 'date': break; // <*:date>
  
  			case 'object': break; // 10.4.6.2 <draw:object>
  			case 'title': case '标题': break; // <*:title> OR <uof:标题>
  			case 'desc': break; // <*:desc>
  			case 'binary-data': break; // 10.4.5 TODO: b64 blob
  
  			/* 9.2 Advanced Tables */
  			case 'table-source': break; // 9.2.6
  			case 'scenario': break; // 9.2.6
  
  			case 'iteration': break; // 9.4.3 <table:iteration>
  			case 'content-validations': break; // 9.4.4 <table:
  			case 'content-validation': break; // 9.4.5 <table:
  			case 'help-message': break; // 9.4.6 <table:
  			case 'error-message': break; // 9.4.7 <table:
  			case 'database-ranges': break; // 9.4.14 <table:database-ranges>
  			case 'filter': break; // 9.5.2 <table:filter>
  			case 'filter-and': break; // 9.5.3 <table:filter-and>
  			case 'filter-or': break; // 9.5.4 <table:filter-or>
  			case 'filter-condition': break; // 9.5.5 <table:filter-condition>
  
  			case 'list-level-style-bullet': break; // 16.31 <text:
  			case 'list-level-style-number': break; // 16.32 <text:
  			case 'list-level-properties': break; // 17.19 <style:
  
  			/* 7.3 Document Fields */
  			case 'sender-firstname': // 7.3.6.2
  			case 'sender-lastname': // 7.3.6.3
  			case 'sender-initials': // 7.3.6.4
  			case 'sender-title': // 7.3.6.5
  			case 'sender-position': // 7.3.6.6
  			case 'sender-email': // 7.3.6.7
  			case 'sender-phone-private': // 7.3.6.8
  			case 'sender-fax': // 7.3.6.9
  			case 'sender-company': // 7.3.6.10
  			case 'sender-phone-work': // 7.3.6.11
  			case 'sender-street': // 7.3.6.12
  			case 'sender-city': // 7.3.6.13
  			case 'sender-postal-code': // 7.3.6.14
  			case 'sender-country': // 7.3.6.15
  			case 'sender-state-or-province': // 7.3.6.16
  			case 'author-name': // 7.3.7.1
  			case 'author-initials': // 7.3.7.2
  			case 'chapter': // 7.3.8
  			case 'file-name': // 7.3.9
  			case 'template-name': // 7.3.9
  			case 'sheet-name': // 7.3.9
  				break;
  
  			case 'event-listener':
  				break;
  			/* TODO: FODS Properties */
  			case 'initial-creator':
  			case 'creation-date':
  			case 'print-date':
  			case 'generator':
  			case 'document-statistic':
  			case 'user-defined':
  			case 'editing-duration':
  			case 'editing-cycles':
  				break;
  
  			/* TODO: FODS Config */
  			case 'config-item':
  				break;
  
  			/* TODO: style tokens */
  			case 'page-number': break; // TODO <text:page-number>
  			case 'page-count': break; // TODO <text:page-count>
  			case 'time': break; // TODO <text:time>
  
  			/* 9.3 Advanced Table Cells */
  			case 'cell-range-source': break; // 9.3.1 <table:
  			case 'detective': break; // 9.3.2 <table:
  			case 'operation': break; // 9.3.3 <table:
  			case 'highlighted-range': break; // 9.3.4 <table:
  
  			/* 9.6 Data Pilot Tables <table: */
  			case 'data-pilot-table': // 9.6.3
  			case 'source-cell-range': // 9.6.5
  			case 'source-service': // 9.6.6
  			case 'data-pilot-field': // 9.6.7
  			case 'data-pilot-level': // 9.6.8
  			case 'data-pilot-subtotals': // 9.6.9
  			case 'data-pilot-subtotal': // 9.6.10
  			case 'data-pilot-members': // 9.6.11
  			case 'data-pilot-member': // 9.6.12
  			case 'data-pilot-display-info': // 9.6.13
  			case 'data-pilot-sort-info': // 9.6.14
  			case 'data-pilot-layout-info': // 9.6.15
  			case 'data-pilot-field-reference': // 9.6.16
  			case 'data-pilot-groups': // 9.6.17
  			case 'data-pilot-group': // 9.6.18
  			case 'data-pilot-group-member': // 9.6.19
  				break;
  
  			/* 10.3 Drawing Shapes */
  			case 'rect': // 10.3.2
  				break;
  
  			/* 14.6 DDE Connections */
  			case 'dde-connection-decls': // 14.6.2 <text:
  			case 'dde-connection-decl': // 14.6.3 <text:
  			case 'dde-link': // 14.6.4 <table:
  			case 'dde-source': // 14.6.5 <office:
  				break;
  
  			case 'properties': break; // 13.7 <form:properties>
  			case 'property': break; // 13.8 <form:property>
  
  			case 'a': // 6.1.8 hyperlink
  				if(Rn[1]!== '/') {
  					atag = parsexmltag(Rn[0], false);
  					if(!atag.href) break;
  					atag.Target = atag.href; delete atag.href;
  					if(atag.Target.charAt(0) == "#" && atag.Target.indexOf(".") > -1) {
  						_Ref = ods_to_csf_3D(atag.Target.slice(1));
  						atag.Target = "#" + _Ref[0] + "!" + _Ref[1];
  					}
  				}
  				break;
  
  			/* non-standard */
  			case 'table-protection': break;
  			case 'data-pilot-grand-total': break; // <table:
  			case 'office-document-common-attrs': break; // bare
  			default: switch(Rn[2]) {
  				case 'dc:':       // TODO: properties
  				case 'calcext:':  // ignore undocumented extensions
  				case 'loext:':    // ignore undocumented extensions
  				case 'ooo:':      // ignore undocumented extensions
  				case 'chartooo:': // ignore undocumented extensions
  				case 'draw:':     // TODO: drawing
  				case 'style:':    // TODO: styles
  				case 'chart:':    // TODO: charts
  				case 'form:':     // TODO: forms
  				case 'uof:':      // TODO: uof
  				case '表:':       // TODO: uof
  				case '字:':       // TODO: uof
  					break;
  				default: if(opts.WTF) throw new Error(Rn);
  			}
  		}
  		var out = ({
  			Sheets: Sheets,
  			SheetNames: SheetNames,
  			Workbook: WB
  		});
  		if(opts.bookSheets) delete out.Sheets;
  		return out;
  	};
  })();
  
  function parse_ods(zip, opts) {
  	opts = opts || ({});
  	var ods = !!safegetzipfile(zip, 'objectdata');
  	if(ods) parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'), opts);
  	var content = getzipstr(zip, 'content.xml');
  	if(!content) throw new Error("Missing content.xml in " + (ods ? "ODS" : "UOF")+ " file");
  	var wb = parse_content_xml(ods ? content : utf8read(content), opts);
  	if(safegetzipfile(zip, 'meta.xml')) wb.Props = parse_core_props(getzipdata(zip, 'meta.xml'));
  	return wb;
  }
  function parse_fods(data, opts) {
  	return parse_content_xml(data, opts);
  }
  
  /* OpenDocument */
  var write_styles_ods = (function() {
  	var payload = '<office:document-styles ' + wxt_helper({
  		'xmlns:office':   "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
  		'xmlns:table':    "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
  		'xmlns:style':    "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
  		'xmlns:text':     "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
  		'xmlns:draw':     "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
  		'xmlns:fo':       "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
  		'xmlns:xlink':    "http://www.w3.org/1999/xlink",
  		'xmlns:dc':       "http://purl.org/dc/elements/1.1/",
  		'xmlns:number':   "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
  		'xmlns:svg':      "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
  		'xmlns:of':       "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
  		'office:version': "1.2"
  	}) + '></office:document-styles>';
  	return function wso() {
  		return XML_HEADER + payload;
  	};
  })();
  var write_content_ods = (function() {
  	/* 6.1.2 White Space Characters */
  	var write_text_p = function(text) {
  		return escapexml(text)
  			.replace(/  +/g, function($$){return '<text:s text:c="'+$$.length+'"/>';})
  			.replace(/\t/g, "<text:tab/>")
  			.replace(/\n/g, "<text:line-break/>")
  			.replace(/^ /, "<text:s/>").replace(/ $/, "<text:s/>");
  	};
  
  	var null_cell_xml = '          <table:table-cell />\n';
  	var covered_cell_xml = '          <table:covered-table-cell/>\n';
  	var write_ws = function(ws, wb, i) {
  		/* Section 9 Tables */
  		var o = [];
  		o.push('      <table:table table:name="' + escapexml(wb.SheetNames[i]) + '">\n');
  		var R=0,C=0, range = decode_range(ws['!ref']);
  		var marr = ws['!merges'] || [], mi = 0;
  		var dense = Array.isArray(ws);
  		for(R = 0; R < range.s.r; ++R) o.push('        <table:table-row></table:table-row>\n');
  		for(; R <= range.e.r; ++R) {
  			o.push('        <table:table-row>\n');
  			for(C=0; C < range.s.c; ++C) o.push(null_cell_xml);
  			for(; C <= range.e.c; ++C) {
  				var skip = false, ct = {}, textp = "";
  				for(mi = 0; mi != marr.length; ++mi) {
  					if(marr[mi].s.c > C) continue;
  					if(marr[mi].s.r > R) continue;
  					if(marr[mi].e.c < C) continue;
  					if(marr[mi].e.r < R) continue;
  					if(marr[mi].s.c != C || marr[mi].s.r != R) skip = true;
  					ct['table:number-columns-spanned'] = (marr[mi].e.c - marr[mi].s.c + 1);
  					ct['table:number-rows-spanned'] =    (marr[mi].e.r - marr[mi].s.r + 1);
  					break;
  				}
  				if(skip) { o.push(covered_cell_xml); continue; }
  				var ref = encode_cell({r:R, c:C}), cell = dense ? (ws[R]||[])[C]: ws[ref];
  				if(cell && cell.f) {
  					ct['table:formula'] = escapexml(csf_to_ods_formula(cell.f));
  					if(cell.F) {
  						if(cell.F.slice(0, ref.length) == ref) {
  							var _Fref = decode_range(cell.F);
  							ct['table:number-matrix-columns-spanned'] = (_Fref.e.c - _Fref.s.c + 1);
  							ct['table:number-matrix-rows-spanned'] =    (_Fref.e.r - _Fref.s.r + 1);
  						}
  					}
  				}
  				if(!cell) { o.push(null_cell_xml); continue; }
  				switch(cell.t) {
  					case 'b':
  						textp = (cell.v ? 'TRUE' : 'FALSE');
  						ct['office:value-type'] = "boolean";
  						ct['office:boolean-value'] = (cell.v ? 'true' : 'false');
  						break;
  					case 'n':
  						textp = (cell.w||String(cell.v||0));
  						ct['office:value-type'] = "float";
  						ct['office:value'] = (cell.v||0);
  						break;
  					case 's': case 'str':
  						textp = cell.v;
  						ct['office:value-type'] = "string";
  						break;
  					case 'd':
  						textp = (cell.w||(parseDate(cell.v).toISOString()));
  						ct['office:value-type'] = "date";
  						ct['office:date-value'] = (parseDate(cell.v).toISOString());
  						ct['table:style-name'] = "ce1";
  						break;
  					//case 'e':
  					default: o.push(null_cell_xml); continue;
  				}
  				var text_p = write_text_p(textp);
  				if(cell.l && cell.l.Target) {
  					var _tgt = cell.l.Target; _tgt = _tgt.charAt(0) == "#" ? "#" + csf_to_ods_3D(_tgt.slice(1)) : _tgt;
  					text_p = writextag('text:a', text_p, {'xlink:href': _tgt});
  				}
  				o.push('          ' + writextag('table:table-cell', writextag('text:p', text_p, {}), ct) + '\n');
  			}
  			o.push('        </table:table-row>\n');
  		}
  		o.push('      </table:table>\n');
  		return o.join("");
  	};
  
  	var write_automatic_styles_ods = function(o) {
  		o.push(' <office:automatic-styles>\n');
  		o.push('  <number:date-style style:name="N37" number:automatic-order="true">\n');
  		o.push('   <number:month number:style="long"/>\n');
  		o.push('   <number:text>/</number:text>\n');
  		o.push('   <number:day number:style="long"/>\n');
  		o.push('   <number:text>/</number:text>\n');
  		o.push('   <number:year/>\n');
  		o.push('  </number:date-style>\n');
  		o.push('  <style:style style:name="ce1" style:family="table-cell" style:parent-style-name="Default" style:data-style-name="N37"/>\n');
  		o.push(' </office:automatic-styles>\n');
  	};
  
  	return function wcx(wb, opts) {
  		var o = [XML_HEADER];
  		/* 3.1.3.2 */
  		var attr = wxt_helper({
  			'xmlns:office':       "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
  			'xmlns:table':        "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
  			'xmlns:style':        "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
  			'xmlns:text':         "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
  			'xmlns:draw':         "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
  			'xmlns:fo':           "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
  			'xmlns:xlink':        "http://www.w3.org/1999/xlink",
  			'xmlns:dc':           "http://purl.org/dc/elements/1.1/",
  			'xmlns:meta':         "urn:oasis:names:tc:opendocument:xmlns:meta:1.0",
  			'xmlns:number':       "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
  			'xmlns:presentation': "urn:oasis:names:tc:opendocument:xmlns:presentation:1.0",
  			'xmlns:svg':          "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
  			'xmlns:chart':        "urn:oasis:names:tc:opendocument:xmlns:chart:1.0",
  			'xmlns:dr3d':         "urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0",
  			'xmlns:math':         "http://www.w3.org/1998/Math/MathML",
  			'xmlns:form':         "urn:oasis:names:tc:opendocument:xmlns:form:1.0",
  			'xmlns:script':       "urn:oasis:names:tc:opendocument:xmlns:script:1.0",
  			'xmlns:ooo':          "http://openoffice.org/2004/office",
  			'xmlns:ooow':         "http://openoffice.org/2004/writer",
  			'xmlns:oooc':         "http://openoffice.org/2004/calc",
  			'xmlns:dom':          "http://www.w3.org/2001/xml-events",
  			'xmlns:xforms':       "http://www.w3.org/2002/xforms",
  			'xmlns:xsd':          "http://www.w3.org/2001/XMLSchema",
  			'xmlns:xsi':          "http://www.w3.org/2001/XMLSchema-instance",
  			'xmlns:sheet':        "urn:oasis:names:tc:opendocument:sh33tjs:1.0",
  			'xmlns:rpt':          "http://openoffice.org/2005/report",
  			'xmlns:of':           "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
  			'xmlns:xhtml':        "http://www.w3.org/1999/xhtml",
  			'xmlns:grddl':        "http://www.w3.org/2003/g/data-view#",
  			'xmlns:tableooo':     "http://openoffice.org/2009/table",
  			'xmlns:drawooo':      "http://openoffice.org/2010/draw",
  			'xmlns:calcext':      "urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0",
  			'xmlns:loext':        "urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0",
  			'xmlns:field':        "urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0",
  			'xmlns:formx':        "urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0",
  			'xmlns:css3t':        "http://www.w3.org/TR/css3-text/",
  			'office:version':     "1.2"
  		});
  
  		var fods = wxt_helper({
  			'xmlns:config':    "urn:oasis:names:tc:opendocument:xmlns:config:1.0",
  			'office:mimetype': "application/vnd.oasis.opendocument.spreadsheet"
  		});
  
  		if(opts.bookType == "fods") o.push('<office:document' + attr + fods + '>\n');
  		else o.push('<office:document-content' + attr  + '>\n');
  		write_automatic_styles_ods(o);
  		o.push('  <office:body>\n');
  		o.push('    <office:spreadsheet>\n');
  		for(var i = 0; i != wb.SheetNames.length; ++i) o.push(write_ws(wb.Sheets[wb.SheetNames[i]], wb, i, opts));
  		o.push('    </office:spreadsheet>\n');
  		o.push('  </office:body>\n');
  		if(opts.bookType == "fods") o.push('</office:document>');
  		else o.push('</office:document-content>');
  		return o.join("");
  	};
  })();
  
  function write_ods(wb, opts) {
  	if(opts.bookType == "fods") return write_content_ods(wb, opts);
  
  var zip = new jszip();
  	var f = "";
  
  	var manifest = [];
  	var rdf = [];
  
  	/* Part 3 Section 3.3 MIME Media Type */
  	f = "mimetype";
  	zip.file(f, "application/vnd.oasis.opendocument.spreadsheet");
  
  	/* Part 1 Section 2.2 Documents */
  	f = "content.xml";
  	zip.file(f, write_content_ods(wb, opts));
  	manifest.push([f, "text/xml"]);
  	rdf.push([f, "ContentFile"]);
  
  	/* TODO: these are hard-coded styles to satiate excel */
  	f = "styles.xml";
  	zip.file(f, write_styles_ods(wb, opts));
  	manifest.push([f, "text/xml"]);
  	rdf.push([f, "StylesFile"]);
  
  	/* TODO: this is hard-coded to satiate excel */
  	f = "meta.xml";
  	zip.file(f, write_meta_ods());
  	manifest.push([f, "text/xml"]);
  	rdf.push([f, "MetadataFile"]);
  
  	/* Part 3 Section 6 Metadata Manifest File */
  	f = "manifest.rdf";
  	zip.file(f, write_rdf(rdf/*, opts*/));
  	manifest.push([f, "application/rdf+xml"]);
  
  	/* Part 3 Section 4 Manifest File */
  	f = "META-INF/manifest.xml";
  	zip.file(f, write_manifest(manifest/*, opts*/));
  
  	return zip;
  }
  
  function write_sheet_index(wb, sheet) {
  	if(!sheet) return 0;
  	var idx = wb.SheetNames.indexOf(sheet);
  	if(idx == -1) throw new Error("Sheet not found: " + sheet);
  	return idx;
  }
  
  function write_obj_str(factory) {
  	return function write_str(wb, o) {
  		var idx = write_sheet_index(wb, o.sheet);
  		return factory.from_sheet(wb.Sheets[wb.SheetNames[idx]], o, wb);
  	};
  }
  
  var write_htm_str = write_obj_str(HTML_);
  var write_csv_str = write_obj_str({from_sheet:sheet_to_csv});
  var write_slk_str = write_obj_str(SYLK);
  var write_dif_str = write_obj_str(DIF);
  var write_prn_str = write_obj_str(PRN);
  var write_rtf_str = write_obj_str(RTF);
  var write_txt_str = write_obj_str({from_sheet:sheet_to_txt});
  var write_dbf_buf = write_obj_str(DBF);
  var write_eth_str = write_obj_str(ETH);
  
  function fix_opts_func(defaults) {
  	return function fix_opts(opts) {
  		for(var i = 0; i != defaults.length; ++i) {
  			var d = defaults[i];
  			if(opts[d[0]] === undefined) opts[d[0]] = d[1];
  			if(d[2] === 'n') opts[d[0]] = Number(opts[d[0]]);
  		}
  	};
  }
  
  var fix_read_opts = fix_opts_func([
  	['cellNF', false], /* emit cell number format string as .z */
  	['cellHTML', true], /* emit html string as .h */
  	['cellFormula', true], /* emit formulae as .f */
  	['cellStyles', false], /* emits style/theme as .s */
  	['cellText', true], /* emit formatted text as .w */
  	['cellDates', false], /* emit date cells with type `d` */
  
  	['sheetStubs', false], /* emit empty cells */
  	['sheetRows', 0, 'n'], /* read n rows (0 = read all rows) */
  
  	['bookDeps', false], /* parse calculation chains */
  	['bookSheets', false], /* only try to get sheet names (no Sheets) */
  	['bookProps', false], /* only try to get properties (no Sheets) */
  	['bookFiles', false], /* include raw file structure (keys, files, cfb) */
  	['bookVBA', false], /* include vba raw data (vbaraw) */
  
  	['password',''], /* password */
  	['WTF', false] /* WTF mode (throws errors) */
  ]);
  
  
  var fix_write_opts = fix_opts_func([
  	['cellDates', false], /* write date cells with type `d` */
  
  	['bookSST', false], /* Generate Shared String Table */
  
  	['bookType', 'xlsx'], /* Type of workbook (xlsx/m/b) */
  
  	['compression', false], /* Use file compression */
  
  	['WTF', false] /* WTF mode (throws errors) */
  ]);
  function get_sheet_type(n) {
  	if(RELS.WS.indexOf(n) > -1) return "sheet";
  	if(RELS.CS && n == RELS.CS) return "chart";
  	if(RELS.DS && n == RELS.DS) return "dialog";
  	if(RELS.MS && n == RELS.MS) return "macro";
  	return (n && n.length) ? n : "sheet";
  }
  function safe_parse_wbrels(wbrels, sheets) {
  	if(!wbrels) return 0;
  	try {
  		wbrels = sheets.map(function pwbr(w) { if(!w.id) w.id = w.strRelID; return [w.name, wbrels['!id'][w.id].Target, get_sheet_type(wbrels['!id'][w.id].Type)]; });
  	} catch(e) { return null; }
  	return !wbrels || wbrels.length === 0 ? null : wbrels;
  }
  
  function safe_parse_sheet(zip, path, relsPath, sheet, idx, sheetRels, sheets, stype, opts, wb, themes, styles) {
  	try {
  		sheetRels[sheet]=parse_rels(getzipstr(zip, relsPath, true), path);
  		var data = getzipdata(zip, path);
  		var _ws;
  		switch(stype) {
  			case 'sheet':  _ws = parse_ws(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
  			case 'chart':  _ws = parse_cs(data, path, idx, opts, sheetRels[sheet], wb, themes, styles);
  				if(!_ws || !_ws['!chart']) break;
  				var dfile = resolve_path(_ws['!chart'].Target, path);
  				var drelsp = get_rels_path(dfile);
  				var draw = parse_drawing(getzipstr(zip, dfile, true), parse_rels(getzipstr(zip, drelsp, true), dfile));
  				var chartp = resolve_path(draw, dfile);
  				var crelsp = get_rels_path(chartp);
  				_ws = parse_chart(getzipstr(zip, chartp, true), chartp, opts, parse_rels(getzipstr(zip, crelsp, true), chartp), wb, _ws);
  				break;
  			case 'macro':  _ws = parse_ms(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
  			case 'dialog': _ws = parse_ds(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
  		}
  		sheets[sheet] = _ws;
  	} catch(e) { if(opts.WTF) throw e; }
  }
  
  function strip_front_slash(x) { return x.charAt(0) == '/' ? x.slice(1) : x; }
  
  function parse_zip(zip, opts) {
  	make_ssf(SSF);
  	opts = opts || {};
  	fix_read_opts(opts);
  
  	/* OpenDocument Part 3 Section 2.2.1 OpenDocument Package */
  	if(safegetzipfile(zip, 'META-INF/manifest.xml')) return parse_ods(zip, opts);
  	/* UOC */
  	if(safegetzipfile(zip, 'objectdata.xml')) return parse_ods(zip, opts);
  	/* Numbers */
  	if(safegetzipfile(zip, 'Index/Document.iwa')) throw new Error('Unsupported NUMBERS file');
  
  	var entries = zipentries(zip);
  	var dir = parse_ct((getzipstr(zip, '[Content_Types].xml')));
  	var xlsb = false;
  	var sheets, binname;
  	if(dir.workbooks.length === 0) {
  		binname = "xl/workbook.xml";
  		if(getzipdata(zip,binname, true)) dir.workbooks.push(binname);
  	}
  	if(dir.workbooks.length === 0) {
  		binname = "xl/workbook.bin";
  		if(!getzipdata(zip,binname,true)) throw new Error("Could not find workbook");
  		dir.workbooks.push(binname);
  		xlsb = true;
  	}
  	if(dir.workbooks[0].slice(-3) == "bin") xlsb = true;
  
  	var themes = ({});
  	var styles = ({});
  	if(!opts.bookSheets && !opts.bookProps) {
  		strs = [];
  		if(dir.sst) try { strs=parse_sst(getzipdata(zip, strip_front_slash(dir.sst)), dir.sst, opts); } catch(e) { if(opts.WTF) throw e; }
  
  		if(opts.cellStyles && dir.themes.length) themes = parse_theme(getzipstr(zip, dir.themes[0].replace(/^\//,''), true)||"",dir.themes[0], opts);
  
  		if(dir.style) styles = parse_sty(getzipdata(zip, strip_front_slash(dir.style)), dir.style, themes, opts);
  	}
  
  	/*var externbooks = */dir.links.map(function(link) {
  		return parse_xlink(getzipdata(zip, strip_front_slash(link)), link, opts);
  	});
  
  	var wb = parse_wb(getzipdata(zip, strip_front_slash(dir.workbooks[0])), dir.workbooks[0], opts);
  
  	var props = {}, propdata = "";
  
  	if(dir.coreprops.length) {
  		propdata = getzipdata(zip, strip_front_slash(dir.coreprops[0]), true);
  		if(propdata) props = parse_core_props(propdata);
  		if(dir.extprops.length !== 0) {
  			propdata = getzipdata(zip, strip_front_slash(dir.extprops[0]), true);
  			if(propdata) parse_ext_props(propdata, props, opts);
  		}
  	}
  
  	var custprops = {};
  	if(!opts.bookSheets || opts.bookProps) {
  		if (dir.custprops.length !== 0) {
  			propdata = getzipstr(zip, strip_front_slash(dir.custprops[0]), true);
  			if(propdata) custprops = parse_cust_props(propdata, opts);
  		}
  	}
  
  	var out = ({});
  	if(opts.bookSheets || opts.bookProps) {
  		if(wb.Sheets) sheets = wb.Sheets.map(function pluck(x){ return x.name; });
  		else if(props.Worksheets && props.SheetNames.length > 0) sheets=props.SheetNames;
  		if(opts.bookProps) { out.Props = props; out.Custprops = custprops; }
  		if(opts.bookSheets && typeof sheets !== 'undefined') out.SheetNames = sheets;
  		if(opts.bookSheets ? out.SheetNames : opts.bookProps) return out;
  	}
  	sheets = {};
  
  	var deps = {};
  	if(opts.bookDeps && dir.calcchain) deps=parse_cc(getzipdata(zip, strip_front_slash(dir.calcchain)),dir.calcchain,opts);
  
  	var i=0;
  	var sheetRels = ({});
  	var path, relsPath;
  
  	{
  		var wbsheets = wb.Sheets;
  		props.Worksheets = wbsheets.length;
  		props.SheetNames = [];
  		for(var j = 0; j != wbsheets.length; ++j) {
  			props.SheetNames[j] = wbsheets[j].name;
  		}
  	}
  
  	var wbext = xlsb ? "bin" : "xml";
  	var wbrelsi = dir.workbooks[0].lastIndexOf("/");
  	var wbrelsfile = (dir.workbooks[0].slice(0, wbrelsi+1) + "_rels/" + dir.workbooks[0].slice(wbrelsi+1) + ".rels").replace(/^\//,"");
  	if(!safegetzipfile(zip, wbrelsfile)) wbrelsfile = 'xl/_rels/workbook.' + wbext + '.rels';
  	var wbrels = parse_rels(getzipstr(zip, wbrelsfile, true), wbrelsfile);
  	if(wbrels) wbrels = safe_parse_wbrels(wbrels, wb.Sheets);
  
  	/* Numbers iOS hack */
  	var nmode = (getzipdata(zip,"xl/worksheets/sheet.xml",true))?1:0;
  	for(i = 0; i != props.Worksheets; ++i) {
  		var stype = "sheet";
  		if(wbrels && wbrels[i]) {
  			path = 'xl/' + (wbrels[i][1]).replace(/[\/]?xl\//, "");
  			if(!safegetzipfile(zip, path)) path = wbrels[i][1];
  			if(!safegetzipfile(zip, path)) path = wbrelsfile.replace(/_rels\/.*$/,"") + wbrels[i][1];
  			stype = wbrels[i][2];
  		} else {
  			path = 'xl/worksheets/sheet'+(i+1-nmode)+"." + wbext;
  			path = path.replace(/sheet0\./,"sheet.");
  		}
  		relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
  		safe_parse_sheet(zip, path, relsPath, props.SheetNames[i], i, sheetRels, sheets, stype, opts, wb, themes, styles);
  	}
  
  	if(dir.comments) parse_comments(zip, dir.comments, sheets, sheetRels, opts);
  
  	out = ({
  		Directory: dir,
  		Workbook: wb,
  		Props: props,
  		Custprops: custprops,
  		Deps: deps,
  		Sheets: sheets,
  		SheetNames: props.SheetNames,
  		Strings: strs,
  		Styles: styles,
  		Themes: themes,
  		SSF: SSF.get_table()
  	});
  	if(opts.bookFiles) {
  		out.keys = entries;
  		out.files = zip.files;
  	}
  	if(opts.bookVBA) {
  		if(dir.vba.length > 0) out.vbaraw = getzipdata(zip,strip_front_slash(dir.vba[0]),true);
  		else if(dir.defaults && dir.defaults.bin === CT_VBA) out.vbaraw = getzipdata(zip, 'xl/vbaProject.bin',true);
  	}
  	return out;
  }
  
  /* [MS-OFFCRYPTO] 2.1.1 */
  function parse_xlsxcfb(cfb, _opts) {
  	var opts = _opts || {};
  	var f = 'Workbook', data = CFB.find(cfb, f);
  	try {
  	f = '/!DataSpaces/Version';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  	/*var version = */parse_DataSpaceVersionInfo(data.content);
  
  	/* 2.3.4.1 */
  	f = '/!DataSpaces/DataSpaceMap';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  	var dsm = parse_DataSpaceMap(data.content);
  	if(dsm.length !== 1 || dsm[0].comps.length !== 1 || dsm[0].comps[0].t !== 0 || dsm[0].name !== "StrongEncryptionDataSpace" || dsm[0].comps[0].v !== "EncryptedPackage")
  		throw new Error("ECMA-376 Encrypted file bad " + f);
  
  	/* 2.3.4.2 */
  	f = '/!DataSpaces/DataSpaceInfo/StrongEncryptionDataSpace';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  	var seds = parse_DataSpaceDefinition(data.content);
  	if(seds.length != 1 || seds[0] != "StrongEncryptionTransform")
  		throw new Error("ECMA-376 Encrypted file bad " + f);
  
  	/* 2.3.4.3 */
  	f = '/!DataSpaces/TransformInfo/StrongEncryptionTransform/!Primary';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  	/*var hdr = */parse_Primary(data.content);
  	} catch(e) {}
  
  	f = '/EncryptionInfo';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  	var einfo = parse_EncryptionInfo(data.content);
  
  	/* 2.3.4.4 */
  	f = '/EncryptedPackage';
  	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
  
  /*global decrypt_agile */
  if(einfo[0] == 0x04 && typeof decrypt_agile !== 'undefined') return decrypt_agile(einfo[1], data.content, opts.password || "", opts);
  /*global decrypt_std76 */
  if(einfo[0] == 0x02 && typeof decrypt_std76 !== 'undefined') return decrypt_std76(einfo[1], data.content, opts.password || "", opts);
  	throw new Error("File is password-protected");
  }
  
  function write_zip(wb, opts) {
  	_shapeid = 1024;
  	if(opts.bookType == "ods") return write_ods(wb, opts);
  	if(wb && !wb.SSF) {
  		wb.SSF = SSF.get_table();
  	}
  	if(wb && wb.SSF) {
  		make_ssf(SSF); SSF.load_table(wb.SSF);
  		// $FlowIgnore
  		opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
  		opts.ssf = wb.SSF;
  	}
  	opts.rels = {}; opts.wbrels = {};
  	opts.Strings = []; opts.Strings.Count = 0; opts.Strings.Unique = 0;
  	if(browser_has_Map) opts.revStrings = new Map();
  	else { opts.revStrings = {}; opts.revStrings.foo = []; delete opts.revStrings.foo; }
  	var wbext = opts.bookType == "xlsb" ? "bin" : "xml";
  	var vbafmt = VBAFMTS.indexOf(opts.bookType) > -1;
  	var ct = new_ct();
  	fix_write_opts(opts = opts || {});
  var zip = new jszip();
  	var f = "", rId = 0;
  
  	opts.cellXfs = [];
  	get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});
  
  	if(!wb.Props) wb.Props = {};
  
  	f = "docProps/core.xml";
  	zip.file(f, write_core_props(wb.Props, opts));
  	ct.coreprops.push(f);
  	add_rels(opts.rels, 2, f, RELS.CORE_PROPS);
  
  f = "docProps/app.xml";
  	if(wb.Props && wb.Props.SheetNames){/* empty */}
  	else if(!wb.Workbook || !wb.Workbook.Sheets) wb.Props.SheetNames = wb.SheetNames;
  	else {
  		var _sn = [];
  		for(var _i = 0; _i < wb.SheetNames.length; ++_i)
  			if((wb.Workbook.Sheets[_i]||{}).Hidden != 2) _sn.push(wb.SheetNames[_i]);
  		wb.Props.SheetNames = _sn;
  	}
  	wb.Props.Worksheets = wb.Props.SheetNames.length;
  	zip.file(f, write_ext_props(wb.Props, opts));
  	ct.extprops.push(f);
  	add_rels(opts.rels, 3, f, RELS.EXT_PROPS);
  
  	if(wb.Custprops !== wb.Props && keys(wb.Custprops||{}).length > 0) {
  		f = "docProps/custom.xml";
  		zip.file(f, write_cust_props(wb.Custprops, opts));
  		ct.custprops.push(f);
  		add_rels(opts.rels, 4, f, RELS.CUST_PROPS);
  	}
  
  	for(rId=1;rId <= wb.SheetNames.length; ++rId) {
  		var wsrels = {'!id':{}};
  		var ws = wb.Sheets[wb.SheetNames[rId-1]];
  		var _type = (ws || {})["!type"] || "sheet";
  		switch(_type) {
  		case "chart": /*
  			f = "xl/chartsheets/sheet" + rId + "." + wbext;
  			zip.file(f, write_cs(rId-1, f, opts, wb, wsrels));
  			ct.charts.push(f);
  			add_rels(wsrels, -1, "chartsheets/sheet" + rId + "." + wbext, RELS.CS);
  			break; */
  			/* falls through */
  		default:
  			f = "xl/worksheets/sheet" + rId + "." + wbext;
  			zip.file(f, write_ws(rId-1, f, opts, wb, wsrels));
  			ct.sheets.push(f);
  			add_rels(opts.wbrels, -1, "worksheets/sheet" + rId + "." + wbext, RELS.WS[0]);
  		}
  
  		if(ws) {
  			var comments = ws['!comments'];
  			if(comments && comments.length > 0) {
  				var cf = "xl/comments" + rId + "." + wbext;
  				zip.file(cf, write_cmnt(comments, cf, opts));
  				ct.comments.push(cf);
  				add_rels(wsrels, -1, "../comments" + rId + "." + wbext, RELS.CMNT);
  			}
  			if(ws['!legacy']) {
  				zip.file("xl/drawings/vmlDrawing" + (rId) + ".vml", write_comments_vml(rId, ws['!comments']));
  			}
  			delete ws['!comments'];
  			delete ws['!legacy'];
  		}
  
  		if(wsrels['!id'].rId1) zip.file(get_rels_path(f), write_rels(wsrels));
  	}
  
  	if(opts.Strings != null && opts.Strings.length > 0) {
  		f = "xl/sharedStrings." + wbext;
  		zip.file(f, write_sst(opts.Strings, f, opts));
  		ct.strs.push(f);
  		add_rels(opts.wbrels, -1, "sharedStrings." + wbext, RELS.SST);
  	}
  
  	f = "xl/workbook." + wbext;
  	zip.file(f, write_wb(wb, f, opts));
  	ct.workbooks.push(f);
  	add_rels(opts.rels, 1, f, RELS.WB);
  
  	/* TODO: something more intelligent with themes */
  
  	f = "xl/theme/theme1.xml";
  	zip.file(f, write_theme(wb.Themes, opts));
  	ct.themes.push(f);
  	add_rels(opts.wbrels, -1, "theme/theme1.xml", RELS.THEME);
  
  	/* TODO: something more intelligent with styles */
  
  	f = "xl/styles." + wbext;
  	zip.file(f, write_sty(wb, f, opts));
  	ct.styles.push(f);
  	add_rels(opts.wbrels, -1, "styles." + wbext, RELS.STY);
  
  	if(wb.vbaraw && vbafmt) {
  		f = "xl/vbaProject.bin";
  		zip.file(f, wb.vbaraw);
  		ct.vba.push(f);
  		add_rels(opts.wbrels, -1, "vbaProject.bin", RELS.VBA);
  	}
  
  	zip.file("[Content_Types].xml", write_ct(ct, opts));
  	zip.file('_rels/.rels', write_rels(opts.rels));
  	zip.file('xl/_rels/workbook.' + wbext + '.rels', write_rels(opts.wbrels));
  
  	delete opts.revssf; delete opts.ssf;
  	return zip;
  }
  function firstbyte(f,o) {
  	var x = "";
  	switch((o||{}).type || "base64") {
  		case 'buffer': return [f[0], f[1], f[2], f[3]];
  		case 'base64': x = Base64.decode(f.slice(0,24)); break;
  		case 'binary': x = f; break;
  		case 'array':  return [f[0], f[1], f[2], f[3]];
  		default: throw new Error("Unrecognized type " + (o && o.type || "undefined"));
  	}
  	return [x.charCodeAt(0), x.charCodeAt(1), x.charCodeAt(2), x.charCodeAt(3)];
  }
  
  function read_cfb(cfb, opts) {
  	if(CFB.find(cfb, "EncryptedPackage")) return parse_xlsxcfb(cfb, opts);
  	return parse_xlscfb(cfb, opts);
  }
  
  function read_zip(data, opts) {
  var zip, d = data;
  	var o = opts||{};
  	if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
  	switch(o.type) {
  		case "base64": zip = new jszip(d, { base64:true }); break;
  		case "binary": case "array": zip = new jszip(d, { base64:false }); break;
  		case "buffer": zip = new jszip(d); break;
  		default: throw new Error("Unrecognized type " + o.type);
  	}
  	return parse_zip(zip, o);
  }
  
  function read_plaintext(data, o) {
  	var i = 0;
  	main: while(i < data.length) switch(data.charCodeAt(i)) {
  		case 0x0A: case 0x0D: case 0x20: ++i; break;
  		case 0x3C: return parse_xlml(data.slice(i),o);
  		default: break main;
  	}
  	return PRN.to_workbook(data, o);
  }
  
  function read_plaintext_raw(data, o) {
  	var str = "", bytes = firstbyte(data, o);
  	switch(o.type) {
  		case 'base64': str = Base64.decode(data); break;
  		case 'binary': str = data; break;
  		case 'buffer': str = data.toString('binary'); break;
  		case 'array': str = cc2str(data); break;
  		default: throw new Error("Unrecognized type " + o.type);
  	}
  	if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str);
  	return read_plaintext(str, o);
  }
  
  function read_utf16(data, o) {
  	var d = data;
  	if(o.type == 'base64') d = Base64.decode(d);
  	d = cptable.utils.decode(1200, d.slice(2), 'str');
  	o.type = "binary";
  	return read_plaintext(d, o);
  }
  
  function bstrify(data) {
  	return !data.match(/[^\x00-\x7F]/) ? data : utf8write(data);
  }
  
  function read_prn(data, d, o, str) {
  	if(str) { o.type = "string"; return PRN.to_workbook(data, o); }
  	return PRN.to_workbook(d, o);
  }
  
  function readSync(data, opts) {
  	reset_cp();
  	if(typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) return readSync(new Uint8Array(data), opts);
  	var d = data, n = [0,0,0,0], str = false;
  	var o = opts||{};
  	_ssfopts = {};
  	if(o.dateNF) _ssfopts.dateNF = o.dateNF;
  	if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
  	if(o.type == "file") { o.type = has_buf ? "buffer" : "binary"; d = read_binary(data); }
  	if(o.type == "string") { str = true; o.type = "binary"; o.codepage = 65001; d = bstrify(data); }
  	if(o.type == 'array' && typeof Uint8Array !== 'undefined' && data instanceof Uint8Array && typeof ArrayBuffer !== 'undefined') {
  		// $FlowIgnore
  		var ab=new ArrayBuffer(3), vu=new Uint8Array(ab); vu.foo="bar";
  		// $FlowIgnore
  		if(!vu.foo) {o=dup(o); o.type='array'; return readSync(ab2a(d), o);}
  	}
  	switch((n = firstbyte(d, o))[0]) {
  		case 0xD0: return read_cfb(CFB.read(d, o), o);
  		case 0x09: return parse_xlscfb(d, o);
  		case 0x3C: return parse_xlml(d, o);
  		case 0x49: if(n[1] === 0x44) return read_wb_ID(d, o); break;
  		case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return DIF.to_workbook(d, o); break;
  		case 0x50: return (n[1] === 0x4B && n[2] < 0x09 && n[3] < 0x09) ? read_zip(d, o) : read_prn(data, d, o, str);
  		case 0xEF: return n[3] === 0x3C ? parse_xlml(d, o) : read_prn(data, d, o, str);
  		case 0xFF: if(n[1] === 0xFE) { return read_utf16(d, o); } break;
  		case 0x00: if(n[1] === 0x00 && n[2] >= 0x02 && n[3] === 0x00) return WK_.to_workbook(d, o); break;
  		case 0x03: case 0x83: case 0x8B: case 0x8C: return DBF.to_workbook(d, o);
  		case 0x7B: if(n[1] === 0x5C && n[2] === 0x72 && n[3] === 0x74) return RTF.to_workbook(d, o); break;
  		case 0x0A: case 0x0D: case 0x20: return read_plaintext_raw(d, o);
  	}
  	if(n[2] <= 12 && n[3] <= 31) return DBF.to_workbook(d, o);
  	return read_prn(data, d, o, str);
  }
  
  function readFileSync(filename, opts) {
  	var o = opts||{}; o.type = 'file';
  	return readSync(filename, o);
  }
  function write_cfb_ctr(cfb, o) {
  	switch(o.type) {
  		case "base64": case "binary": break;
  		case "buffer": case "array": o.type = ""; break;
  		case "file": return write_dl(o.file, CFB.write(cfb, {type:has_buf ? 'buffer' : ""}));
  		case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
  		default: throw new Error("Unrecognized type " + o.type);
  	}
  	return CFB.write(cfb, o);
  }
  
  /*global encrypt_agile */
  function write_zip_type(wb, opts) {
  	var o = opts||{};
  	var z = write_zip(wb, o);
  	var oopts = {};
  	if(o.compression) oopts.compression = 'DEFLATE';
  	if(o.password) oopts.type = has_buf ? "nodebuffer" : "string";
  	else switch(o.type) {
  		case "base64": oopts.type = "base64"; break;
  		case "binary": oopts.type = "string"; break;
  		case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
  		case "buffer":
  		case "file": oopts.type = has_buf ? "nodebuffer" : "string"; break;
  		default: throw new Error("Unrecognized type " + o.type);
  	}
  	var out = z.generate(oopts);
  	if(o.password && typeof encrypt_agile !== 'undefined') return write_cfb_ctr(encrypt_agile(out, o.password), o);
  	if(o.type === "file") return write_dl(o.file, out);
  	return o.type == "string" ? utf8read(out) : out;
  }
  
  function write_cfb_type(wb, opts) {
  	var o = opts||{};
  	var cfb = write_xlscfb(wb, o);
  	return write_cfb_ctr(cfb, o);
  }
  
  function write_string_type(out, opts, bom) {
  	if(!bom) bom = "";
  	var o = bom + out;
  	switch(opts.type) {
  		case "base64": return Base64.encode(utf8write(o));
  		case "binary": return utf8write(o);
  		case "string": return out;
  		case "file": return write_dl(opts.file, o, 'utf8');
  		case "buffer": {
  			// $FlowIgnore
  			if(has_buf) return Buffer_from(o, 'utf8');
  			else return write_string_type(o, {type:'binary'}).split("").map(function(c) { return c.charCodeAt(0); });
  		}
  	}
  	throw new Error("Unrecognized type " + opts.type);
  }
  
  function write_stxt_type(out, opts) {
  	switch(opts.type) {
  		case "base64": return Base64.encode(out);
  		case "binary": return out;
  		case "string": return out; /* override in sheet_to_txt */
  		case "file": return write_dl(opts.file, out, 'binary');
  		case "buffer": {
  			// $FlowIgnore
  			if(has_buf) return Buffer_from(out, 'binary');
  			else return out.split("").map(function(c) { return c.charCodeAt(0); });
  		}
  	}
  	throw new Error("Unrecognized type " + opts.type);
  }
  
  /* TODO: test consistency */
  function write_binary_type(out, opts) {
  	switch(opts.type) {
  		case "string":
  		case "base64":
  		case "binary":
  			var bstr = "";
  			// $FlowIgnore
  			for(var i = 0; i < out.length; ++i) bstr += String.fromCharCode(out[i]);
  			return opts.type == 'base64' ? Base64.encode(bstr) : opts.type == 'string' ? utf8read(bstr) : bstr;
  		case "file": return write_dl(opts.file, out);
  		case "buffer": return out;
  		default: throw new Error("Unrecognized type " + opts.type);
  	}
  }
  
  function writeSync(wb, opts) {
  	check_wb(wb);
  	var o = opts||{};
  	if(o.type == "array") { o.type = "binary"; var out = (writeSync(wb, o)); o.type = "array"; return s2ab(out); }
  	switch(o.bookType || 'xlsb') {
  		case 'xml':
  		case 'xlml': return write_string_type(write_xlml(wb, o), o);
  		case 'slk':
  		case 'sylk': return write_string_type(write_slk_str(wb, o), o);
  		case 'htm':
  		case 'html': return write_string_type(write_htm_str(wb, o), o);
  		case 'txt': return write_stxt_type(write_txt_str(wb, o), o);
  		case 'csv': return write_string_type(write_csv_str(wb, o), o, "\ufeff");
  		case 'dif': return write_string_type(write_dif_str(wb, o), o);
  		case 'dbf': return write_binary_type(write_dbf_buf(wb, o), o);
  		case 'prn': return write_string_type(write_prn_str(wb, o), o);
  		case 'rtf': return write_string_type(write_rtf_str(wb, o), o);
  		case 'eth': return write_string_type(write_eth_str(wb, o), o);
  		case 'fods': return write_string_type(write_ods(wb, o), o);
  		case 'biff2': if(!o.biff) o.biff = 2; /* falls through */
  		case 'biff3': if(!o.biff) o.biff = 3; /* falls through */
  		case 'biff4': if(!o.biff) o.biff = 4; return write_binary_type(write_biff_buf(wb, o), o);
  		case 'biff5': if(!o.biff) o.biff = 5; /* falls through */
  		case 'biff8':
  		case 'xla':
  		case 'xls': if(!o.biff) o.biff = 8; return write_cfb_type(wb, o);
  		case 'xlsx':
  		case 'xlsm':
  		case 'xlam':
  		case 'xlsb':
  		case 'ods': return write_zip_type(wb, o);
  		default: throw new Error ("Unrecognized bookType |" + o.bookType + "|");
  	}
  }
  
  function resolve_book_type(o) {
  	if(o.bookType) return;
  	var _BT = {
  		"xls": "biff8",
  		"htm": "html",
  		"slk": "sylk",
  		"socialcalc": "eth",
  		"Sh33tJS": "WTF"
  	};
  	var ext = o.file.slice(o.file.lastIndexOf(".")).toLowerCase();
  	if(ext.match(/^\.[a-z]+$/)) o.bookType = ext.slice(1);
  	o.bookType = _BT[o.bookType] || o.bookType;
  }
  
  function writeFileSync(wb, filename, opts) {
  	var o = opts||{}; o.type = 'file';
  	o.file = filename;
  	resolve_book_type(o);
  	return writeSync(wb, o);
  }
  
  function writeFileAsync(filename, wb, opts, cb) {
  	var o = opts||{}; o.type = 'file';
  	o.file = filename;
  	resolve_book_type(o);
  	o.type = 'buffer';
  	var _cb = cb; if(!(_cb instanceof Function)) _cb = (opts);
  	return _fs.writeFile(filename, writeSync(wb, o), _cb);
  }
  function make_json_row(sheet, r, R, cols, header, hdr, dense, o) {
  	var rr = encode_row(R);
  	var defval = o.defval, raw = o.raw || !o.hasOwnProperty("raw");
  	var isempty = true;
  	var row = (header === 1) ? [] : {};
  	if(header !== 1) {
  		if(Object.defineProperty) try { Object.defineProperty(row, '__rowNum__', {value:R, enumerable:false}); } catch(e) { row.__rowNum__ = R; }
  		else row.__rowNum__ = R;
  	}
  	if(!dense || sheet[R]) for (var C = r.s.c; C <= r.e.c; ++C) {
  		var val = dense ? sheet[R][C] : sheet[cols[C] + rr];
  		if(val === undefined || val.t === undefined) {
  			if(defval === undefined) continue;
  			if(hdr[C] != null) { row[hdr[C]] = defval; }
  			continue;
  		}
  		var v = val.v;
  		switch(val.t){
  			case 'z': if(v == null) break; continue;
  			case 'e': v = void 0; break;
  			case 's': case 'd': case 'b': case 'n': break;
  			default: throw new Error('unrecognized type ' + val.t);
  		}
  		if(hdr[C] != null) {
  			if(v == null) {
  				if(defval !== undefined) row[hdr[C]] = defval;
  				else if(raw && v === null) row[hdr[C]] = null;
  				else continue;
  			} else {
  				row[hdr[C]] = raw ? v : format_cell(val,v,o);
  			}
  			if(v != null) isempty = false;
  		}
  	}
  	return { row: row, isempty: isempty };
  }
  
  
  function sheet_to_json(sheet, opts) {
  	if(sheet == null || sheet["!ref"] == null) return [];
  	var val = {t:'n',v:0}, header = 0, offset = 1, hdr = [], v=0, vv="";
  	var r = {s:{r:0,c:0},e:{r:0,c:0}};
  	var o = opts || {};
  	var range = o.range != null ? o.range : sheet["!ref"];
  	if(o.header === 1) header = 1;
  	else if(o.header === "A") header = 2;
  	else if(Array.isArray(o.header)) header = 3;
  	switch(typeof range) {
  		case 'string': r = safe_decode_range(range); break;
  		case 'number': r = safe_decode_range(sheet["!ref"]); r.s.r = range; break;
  		default: r = range;
  	}
  	if(header > 0) offset = 0;
  	var rr = encode_row(r.s.r);
  	var cols = [];
  	var out = [];
  	var outi = 0, counter = 0;
  	var dense = Array.isArray(sheet);
  	var R = r.s.r, C = 0, CC = 0;
  	if(dense && !sheet[R]) sheet[R] = [];
  	for(C = r.s.c; C <= r.e.c; ++C) {
  		cols[C] = encode_col(C);
  		val = dense ? sheet[R][C] : sheet[cols[C] + rr];
  		switch(header) {
  			case 1: hdr[C] = C - r.s.c; break;
  			case 2: hdr[C] = cols[C]; break;
  			case 3: hdr[C] = o.header[C - r.s.c]; break;
  			default:
  				if(val == null) val = {w: "__EMPTY", t: "s"};
  				vv = v = format_cell(val, null, o);
  				counter = 0;
  				for(CC = 0; CC < hdr.length; ++CC) if(hdr[CC] == vv) vv = v + "_" + (++counter);
  				hdr[C] = vv;
  		}
  	}
  	for (R = r.s.r + offset; R <= r.e.r; ++R) {
  		var row = make_json_row(sheet, r, R, cols, header, hdr, dense, o);
  		if((row.isempty === false) || (header === 1 ? o.blankrows !== false : !!o.blankrows)) out[outi++] = row.row;
  	}
  	out.length = outi;
  	return out;
  }
  
  var qreg = /"/g;
  function make_csv_row(sheet, r, R, cols, fs, rs, FS, o) {
  	var isempty = true;
  	var row = [], txt = "", rr = encode_row(R);
  	for(var C = r.s.c; C <= r.e.c; ++C) {
  		if (!cols[C]) continue;
  		var val = o.dense ? (sheet[R]||[])[C]: sheet[cols[C] + rr];
  		if(val == null) txt = "";
  		else if(val.v != null) {
  			isempty = false;
  			txt = ''+format_cell(val, null, o);
  			for(var i = 0, cc = 0; i !== txt.length; ++i) if((cc = txt.charCodeAt(i)) === fs || cc === rs || cc === 34) {txt = "\"" + txt.replace(qreg, '""') + "\""; break; }
  			if(txt == "ID") txt = '"ID"';
  		} else if(val.f != null && !val.F) {
  			isempty = false;
  			txt = '=' + val.f; if(txt.indexOf(",") >= 0) txt = '"' + txt.replace(qreg, '""') + '"';
  		} else txt = "";
  		/* NOTE: Excel CSV does not support array formulae */
  		row.push(txt);
  	}
  	if(o.blankrows === false && isempty) return null;
  	return row.join(FS);
  }
  
  function sheet_to_csv(sheet, opts) {
  	var out = [];
  	var o = opts == null ? {} : opts;
  	if(sheet == null || sheet["!ref"] == null) return "";
  	var r = safe_decode_range(sheet["!ref"]);
  	var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
  	var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
  	var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
  	var row = "", cols = [];
  	o.dense = Array.isArray(sheet);
  	var colinfo = o.skipHidden && sheet["!cols"] || [];
  	var rowinfo = o.skipHidden && sheet["!rows"] || [];
  	for(var C = r.s.c; C <= r.e.c; ++C) if (!((colinfo[C]||{}).hidden)) cols[C] = encode_col(C);
  	for(var R = r.s.r; R <= r.e.r; ++R) {
  		if ((rowinfo[R]||{}).hidden) continue;
  		row = make_csv_row(sheet, r, R, cols, fs, rs, FS, o);
  		if(row == null) { continue; }
  		if(o.strip) row = row.replace(endregex,"");
  		out.push(row + RS);
  	}
  	delete o.dense;
  	return out.join("");
  }
  
  function sheet_to_txt(sheet, opts) {
  	if(!opts) opts = {}; opts.FS = "\t"; opts.RS = "\n";
  	var s = sheet_to_csv(sheet, opts);
  	if(typeof cptable == 'undefined' || opts.type == 'string') return s;
  	var o = cptable.utils.encode(1200, s, 'str');
  	return String.fromCharCode(255) + String.fromCharCode(254) + o;
  }
  
  function sheet_to_formulae(sheet) {
  	var y = "", x, val="";
  	if(sheet == null || sheet["!ref"] == null) return [];
  	var r = safe_decode_range(sheet['!ref']), rr = "", cols = [], C;
  	var cmds = [];
  	var dense = Array.isArray(sheet);
  	for(C = r.s.c; C <= r.e.c; ++C) cols[C] = encode_col(C);
  	for(var R = r.s.r; R <= r.e.r; ++R) {
  		rr = encode_row(R);
  		for(C = r.s.c; C <= r.e.c; ++C) {
  			y = cols[C] + rr;
  			x = dense ? (sheet[R]||[])[C] : sheet[y];
  			val = "";
  			if(x === undefined) continue;
  			else if(x.F != null) {
  				y = x.F;
  				if(!x.f) continue;
  				val = x.f;
  				if(y.indexOf(":") == -1) y = y + ":" + y;
  			}
  			if(x.f != null) val = x.f;
  			else if(x.t == 'z') continue;
  			else if(x.t == 'n' && x.v != null) val = "" + x.v;
  			else if(x.t == 'b') val = x.v ? "TRUE" : "FALSE";
  			else if(x.w !== undefined) val = "'" + x.w;
  			else if(x.v === undefined) continue;
  			else if(x.t == 's') val = "'" + x.v;
  			else val = ""+x.v;
  			cmds[cmds.length] = y + "=" + val;
  		}
  	}
  	return cmds;
  }
  
  function sheet_add_json(_ws, js, opts) {
  	var o = opts || {};
  	var offset = +!o.skipHeader;
  	var ws = _ws || ({});
  	var _R = 0, _C = 0;
  	if(ws && o.origin != null) {
  		if(typeof o.origin == 'number') _R = o.origin;
  		else {
  			var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
  			_R = _origin.r; _C = _origin.c;
  		}
  	}
  	var cell;
  	var range = ({s: {c:0, r:0}, e: {c:_C, r:_R + js.length - 1 + offset}});
  	if(ws['!ref']) {
  		var _range = safe_decode_range(ws['!ref']);
  		range.e.c = Math.max(range.e.c, _range.e.c);
  		range.e.r = Math.max(range.e.r, _range.e.r);
  		if(_R == -1) { _R = range.e.r + 1; range.e.r = _R + js.length - 1 + offset; }
  	}
  	var hdr = o.header || [], C = 0;
  
  	js.forEach(function (JS, R) {
  		keys(JS).forEach(function(k) {
  			if((C=hdr.indexOf(k)) == -1) hdr[C=hdr.length] = k;
  			var v = JS[k];
  			var t = 'z';
  			var z = "";
  			if(v && typeof v === 'object' && !(v instanceof Date)){
  				ws[encode_cell({c:_C + C,r:_R + R + offset})] = v;
  			} else {
  				if(typeof v == 'number') t = 'n';
  				else if(typeof v == 'boolean') t = 'b';
  				else if(typeof v == 'string') t = 's';
  				else if(v instanceof Date) {
  					t = 'd';
  					if(!o.cellDates) { t = 'n'; v = datenum(v); }
  					z = o.dateNF || SSF._table[14];
  				}
  				ws[encode_cell({c:_C + C,r:_R + R + offset})] = cell = ({t:t, v:v});
  				if(z) cell.z = z;
  			}
  		});
  	});
  	range.e.c = Math.max(range.e.c, _C + hdr.length - 1);
  	var __R = encode_row(_R);
  	if(offset) for(C = 0; C < hdr.length; ++C) ws[encode_col(C + _C) + __R] = {t:'s', v:hdr[C]};
  	ws['!ref'] = encode_range(range);
  	return ws;
  }
  function json_to_sheet(js, opts) { return sheet_add_json(null, js, opts); }
  
  var utils = {
  	encode_col: encode_col,
  	encode_row: encode_row,
  	encode_cell: encode_cell,
  	encode_range: encode_range,
  	decode_col: decode_col,
  	decode_row: decode_row,
  	split_cell: split_cell,
  	decode_cell: decode_cell,
  	decode_range: decode_range,
  	format_cell: format_cell,
  	get_formulae: sheet_to_formulae,
  	make_csv: sheet_to_csv,
  	make_json: sheet_to_json,
  	make_formulae: sheet_to_formulae,
  	sheet_add_aoa: sheet_add_aoa,
  	sheet_add_json: sheet_add_json,
  	aoa_to_sheet: aoa_to_sheet,
  	json_to_sheet: json_to_sheet,
  	table_to_sheet: parse_dom_table,
  	table_to_book: table_to_book,
  	sheet_to_csv: sheet_to_csv,
  	sheet_to_txt: sheet_to_txt,
  	sheet_to_json: sheet_to_json,
  	sheet_to_html: HTML_.from_sheet,
  	sheet_to_dif: DIF.from_sheet,
  	sheet_to_slk: SYLK.from_sheet,
  	sheet_to_eth: ETH.from_sheet,
  	sheet_to_formulae: sheet_to_formulae,
  	sheet_to_row_object_array: sheet_to_json
  };
  
  (function(utils) {
  utils.consts = utils.consts || {};
  function add_consts(R/*Array<any>*/) { R.forEach(function(a){ utils.consts[a[0]] = a[1]; }); }
  
  function get_default(x, y, z) { return x[y] != null ? x[y] : (x[y] = z); }
  
  /* get cell, creating a stub if necessary */
  function ws_get_cell_stub(ws, R, C) {
  	/* A1 cell address */
  	if(typeof R == "string") return ws[R] || (ws[R] = {t:'z'});
  	/* cell address object */
  	if(typeof R != "number") return ws_get_cell_stub(ws, encode_cell(R));
  	/* R and C are 0-based indices */
  	return ws_get_cell_stub(ws, encode_cell({r:R,c:C||0}));
  }
  
  /* find sheet index for given name / validate index */
  function wb_sheet_idx(wb, sh) {
  	if(typeof sh == "number") {
  		if(sh >= 0 && wb.SheetNames.length > sh) return sh;
  		throw new Error("Cannot find sheet # " + sh);
  	} else if(typeof sh == "string") {
  		var idx = wb.SheetNames.indexOf(sh);
  		if(idx > -1) return idx;
  		throw new Error("Cannot find sheet name |" + sh + "|");
  	} else throw new Error("Cannot find sheet |" + sh + "|");
  }
  
  /* simple blank workbook object */
  utils.book_new = function() {
  	return { SheetNames: [], Sheets: {} };
  };
  
  /* add a worksheet to the end of a given workbook */
  utils.book_append_sheet = function(wb, ws, name) {
  	if(!name) for(var i = 1; i <= 0xFFFF; ++i) if(wb.SheetNames.indexOf(name = "Sheet" + i) == -1) break;
  	if(!name) throw new Error("Too many worksheets");
  	check_ws_name(name);
  	if(wb.SheetNames.indexOf(name) >= 0) throw new Error("Worksheet with name |" + name + "| already exists!");
  
  	wb.SheetNames.push(name);
  	wb.Sheets[name] = ws;
  };
  
  /* set sheet visibility (visible/hidden/very hidden) */
  utils.book_set_sheet_visibility = function(wb, sh, vis) {
  	get_default(wb,"Workbook",{});
  	get_default(wb.Workbook,"Sheets",[]);
  
  	var idx = wb_sheet_idx(wb, sh);
  	// $FlowIgnore
  	get_default(wb.Workbook.Sheets,idx, {});
  
  	switch(vis) {
  		case 0: case 1: case 2: break;
  		default: throw new Error("Bad sheet visibility setting " + vis);
  	}
  	// $FlowIgnore
  	wb.Workbook.Sheets[idx].Hidden = vis;
  };
  add_consts([
  	["SHEET_VISIBLE", 0],
  	["SHEET_HIDDEN", 1],
  	["SHEET_VERY_HIDDEN", 2]
  ]);
  
  /* set number format */
  utils.cell_set_number_format = function(cell, fmt) {
  	cell.z = fmt;
  	return cell;
  };
  
  /* set cell hyperlink */
  utils.cell_set_hyperlink = function(cell, target, tooltip) {
  	if(!target) {
  		delete cell.l;
  	} else {
  		cell.l = ({ Target: target });
  		if(tooltip) cell.l.Tooltip = tooltip;
  	}
  	return cell;
  };
  utils.cell_set_internal_link = function(cell, range, tooltip) { return utils.cell_set_hyperlink(cell, "#" + range, tooltip); };
  
  /* add to cell comments */
  utils.cell_add_comment = function(cell, text, author) {
  	if(!cell.c) cell.c = [];
  	cell.c.push({t:text, a:author||"SheetJS"});
  };
  
  /* set array formula and flush related cells */
  utils.sheet_set_array_formula = function(ws, range, formula) {
  	var rng = typeof range != "string" ? range : safe_decode_range(range);
  	var rngstr = typeof range == "string" ? range : encode_range(range);
  	for(var R = rng.s.r; R <= rng.e.r; ++R) for(var C = rng.s.c; C <= rng.e.c; ++C) {
  		var cell = ws_get_cell_stub(ws, R, C);
  		cell.t = 'n';
  		cell.F = rngstr;
  		delete cell.v;
  		if(R == rng.s.r && C == rng.s.c) cell.f = formula;
  	}
  	return ws;
  };
  
  return utils;
  })(utils);
  
  if(has_buf && typeof require != 'undefined') (function() {
  	var Readable = require('stream').Readable;
  
  	var write_csv_stream = function(sheet, opts) {
  		var stream = Readable();
  		var o = opts == null ? {} : opts;
  		if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
  		var r = safe_decode_range(sheet["!ref"]);
  		var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
  		var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
  		var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
  		var row = "", cols = [];
  		o.dense = Array.isArray(sheet);
  		var colinfo = o.skipHidden && sheet["!cols"] || [];
  		var rowinfo = o.skipHidden && sheet["!rows"] || [];
  		for(var C = r.s.c; C <= r.e.c; ++C) if (!((colinfo[C]||{}).hidden)) cols[C] = encode_col(C);
  		var R = r.s.r;
  		var BOM = false;
  		stream._read = function() {
  			if(!BOM) { BOM = true; return stream.push("\uFEFF"); }
  			if(R > r.e.r) return stream.push(null);
  			while(R <= r.e.r) {
  				++R;
  				if ((rowinfo[R-1]||{}).hidden) continue;
  				row = make_csv_row(sheet, r, R-1, cols, fs, rs, FS, o);
  				if(row != null) {
  					if(o.strip) row = row.replace(endregex,"");
  					stream.push(row + RS);
  					break;
  				}
  			}
  		};
  		return stream;
  	};
  
  	var write_html_stream = function(ws, opts) {
  		var stream = Readable();
  
  		var o = opts || {};
  		var header = o.header != null ? o.header : HTML_.BEGIN;
  		var footer = o.footer != null ? o.footer : HTML_.END;
  		stream.push(header);
  		var r = decode_range(ws['!ref']);
  		o.dense = Array.isArray(ws);
  		stream.push(HTML_._preamble(ws, r, o));
  		var R = r.s.r;
  		var end = false;
  		stream._read = function() {
  			if(R > r.e.r) {
  				if(!end) { end = true; stream.push("</table>" + footer); }
  				return stream.push(null);
  			}
  			while(R <= r.e.r) {
  				stream.push(HTML_._row(ws, r, R, o));
  				++R;
  				break;
  			}
  		};
  		return stream;
  	};
  
  	var write_json_stream = function(sheet, opts) {
  		var stream = Readable({objectMode:true});
  
  		if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
  		var val = {t:'n',v:0}, header = 0, offset = 1, hdr = [], v=0, vv="";
  		var r = {s:{r:0,c:0},e:{r:0,c:0}};
  		var o = opts || {};
  		var range = o.range != null ? o.range : sheet["!ref"];
  		if(o.header === 1) header = 1;
  		else if(o.header === "A") header = 2;
  		else if(Array.isArray(o.header)) header = 3;
  		switch(typeof range) {
  			case 'string': r = safe_decode_range(range); break;
  			case 'number': r = safe_decode_range(sheet["!ref"]); r.s.r = range; break;
  			default: r = range;
  		}
  		if(header > 0) offset = 0;
  		var rr = encode_row(r.s.r);
  		var cols = [];
  		var counter = 0;
  		var dense = Array.isArray(sheet);
  		var R = r.s.r, C = 0, CC = 0;
  		if(dense && !sheet[R]) sheet[R] = [];
  		for(C = r.s.c; C <= r.e.c; ++C) {
  			cols[C] = encode_col(C);
  			val = dense ? sheet[R][C] : sheet[cols[C] + rr];
  			switch(header) {
  				case 1: hdr[C] = C - r.s.c; break;
  				case 2: hdr[C] = cols[C]; break;
  				case 3: hdr[C] = o.header[C - r.s.c]; break;
  				default:
  					if(val == null) val = {w: "__EMPTY", t: "s"};
  					vv = v = format_cell(val, null, o);
  					counter = 0;
  					for(CC = 0; CC < hdr.length; ++CC) if(hdr[CC] == vv) vv = v + "_" + (++counter);
  					hdr[C] = vv;
  			}
  		}
  		R = r.s.r + offset;
  		stream._read = function() {
  			if(R > r.e.r) return stream.push(null);
  			while(R <= r.e.r) {
  				++R;
  				//if ((rowinfo[R-1]||{}).hidden) continue;
  				var row = make_json_row(sheet, r, R, cols, header, hdr, dense, o);
  				if((row.isempty === false) || (header === 1 ? o.blankrows !== false : !!o.blankrows)) {
  					stream.push(row.row);
  					break;
  				}
  			}
  		};
  		return stream;
  	};
  
  	XLSX.stream = {
  		to_json: write_json_stream,
  		to_html: write_html_stream,
  		to_csv: write_csv_stream
  	};
  })();
  
  XLSX.parse_xlscfb = parse_xlscfb;
  XLSX.parse_ods = parse_ods;
  XLSX.parse_fods = parse_fods;
  XLSX.write_ods = write_ods;
  XLSX.parse_zip = parse_zip;
  XLSX.read = readSync; //xlsread
  XLSX.readFile = readFileSync; //readFile
  XLSX.readFileSync = readFileSync;
  XLSX.write = writeSync;
  XLSX.writeFile = writeFileSync;
  XLSX.writeFileSync = writeFileSync;
  XLSX.writeFileAsync = writeFileAsync;
  XLSX.utils = utils;
  XLSX.SSF = SSF;
  XLSX.CFB = CFB;
  }
  /*global define */
  if(typeof exports !== 'undefined') make_xlsx_lib(exports);
  else if(typeof module !== 'undefined' && module.exports) make_xlsx_lib(module.exports);
  else if(typeof define === 'function' && define.amd) define('xlsx', function() { if(!XLSX.version) make_xlsx_lib(XLSX); return XLSX; });
  else make_xlsx_lib(XLSX);
  /*exported XLS, ODS */
  var XLS = XLSX, ODS = XLSX;
  