da http://www.codeplex.com/PHPExcel/Wik...itle=Documents
# Output your spreadsheet object to different file formats

* Excel 2007 (spreadsheetML)
* BIFF5 (Excel 97 and higher)
* PHPExcel Serialized Spreadsheet
* CSV (Comma Separated Values)
* HTML

# Read different file formats into your spreadsheet object

* Excel 2007 (spreadsheetML)
* PHPExcel Serialized Spreadsheet
* CSV (Comma Separated Values)