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OpenOffice.org is the second most commonly-used office suite on the planet, and it is the fastest-growing in number of users. It has been downloaded more than 100 million times, and is used by possibly 130 million people around the world. (See the latest download statistics at the Stats Project page.)
Natively using the ISO standard ODF file format, and also highly compatible with the formats used by Microsoft Office, OpenOffice’s components are Writer (word processing), Calc (spreadsheet), Impress (slideshow presentations), Draw (vector graphics), and Base (database). It also includes a mathematical equation editor, HTML composing tool, and programming interface.
OpenOffice is distributed under the LGPL license. In short, this means it is free for anyone to download, use and share, without paying anything at any time.
Not only is it free, but OpenOffice is very powerful and polished. It includes one-click export to PDF or Flash, sophisticated handling of images within documents, advanced style capabilities, a robust and standard XML-based file format of archival quality (OpenDocument Format, or ODF), and many other advanced features.
OpenOffice runs on Windows, Linux, Mac OS X, Solaris, FreeBSD and other platforms.
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| Writer [word processor] | Calc [spreadsheet] | Draw [vector graphics] | Base [database] | Impress [like PowerPoint] |
