title: Copying Excel Worksheets in POI
body: <p>Does anyone know of a means to copy a worksheet from one workbook to another using POI? The Workbook class has a cloneSheet method, but there doesn't seem to be able to insert a cloned sheet into a new workbook?</p>
  
  <p>If there isn't an API to do this easily, does anyone have the code to copy all of the data (styles, column widths, data, etc) from one sheet to another?</p>
  
  <p>The jxls has methods to copy sheets, but they don't work when copying between workbooks.</p>