LibreOffice is the free power-packed Open Source personal productivity suite for Windows, Macintosh and Linux, that gives you six feature-rich applications for all your document production and data processing needs. LibreOffice is compatible with other major office suites and available on a variety of platforms. Its developers' goal is to produce a vendor-independent office suite with ODF support and without any copyright assignment requirements.

Program Home Page: http://www.libreoffice.org/download
Download: http://www.libreoffice.org/download/
Windows
Linux
Mac OS X