LibreOffice.org 4 LibreOffice is a comprehensive, professional-quality productivity suite that you can download and install for free, with no fear of copyright infringement. There is a large base of satisfied LibreOffice users worldwide, and it is available in more than 30 languages and for all major operating systems, including Microsoft Windows, Mac OS X and GNU/Linux.
OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose