OpenOffice.org is the open source project through which Sun Microsystems is releasing the technology for the popular StarOffice productivity suite. It is an international office suite that will run on all major platforms and provide access to all functionality and data through open-component based APIs and an XML-based file format. It establishes the necessary facilities to make this open source technology available to the developer community.
OpenOffice原是Sun公司的一套商业级Office软件：StarOffice，经过Sun公司公开程序码之后，正式命名为 OpenOffice发展计划，并由许许多多热心于自由软件的人士共同来维持。让大家能在MS OFFICE之外，还能有免费的Office可以使用。OpenOffice是个整合性的软件，里面包含了许许多多的工具，其功能绝对不比微软的MS Office还差，不但可以有Word一样的字处理，制作简单的图形，更有功能强大的图表功能，也能编写网页，还可以做出MS Office中很难处理的数学符号等等，支持了XML、微软的doc、Excel、ppt文件等格式。
Download: OpenOffice.org 2.3.0 Final for Windows (English,105.9 MB)
Download: OpenOffice.org 2.3.0 Final for Linux (English,136.6M)