title: How to import text file for xmlbuilder in node.js
body: <p>I am using xmlbuilder npm package - which looks powerful , except I want to import an existing xml file into the xmlbuilder and manipulate elements / attributes etc as opposed to building the whole thing from scratch.  It is possible to do it with this package , or maybe a workaround?</p>
  
  <pre><code>var builder = require('xmlbuilder');
  fs.readFile('my-file.txt', 'utf8', function(err, data) {  
  if (err) throw err;
      //Load data into xmlbuilder?
      //
  });
  </code></pre>