两个开源的Php输出Excel文件类

1.php-excel

php-excel is a very simple library for generating excel documents from php on-the-fly.

http://code.google.com/p/php-excel/
脚本之家下载
http://www.jb51.net/codes/24319.html
2.PHPExcel

Project providing a set of classes for the PHP programming language, which allow you to write to and read from different file formats, like Excel 2007, PDF, HTML, ... This project is built around Microsoft's OpenXML standard and PHP.

http://www.codeplex.com/PHPExcel/ 

脚本之家下载
http://www.jb51.net/codes/24320.html