How to generate Excel files ??

http://pear.php.net/package/Spreadsheet_Excel_Writer/download/All

http://pear.php.net/package/OLE/download

http://pear.php.net/manual/en/package.fileformats.spreadsheet-excel-writer.intro.php

http://twpug.net/modules/newbb/viewtopic.php?post_id=6230

http://www.wretch.cc/blog/godisverygoo