The Document Foundation offer the new version of its free office suite in the final release candidate and available for download: LibreOffice 3.6.1 RC1.
LibreOffice, besides being an excellent alternative to the known and Payment: Microsoft Office has a word processor (Writer), spreadsheet (Calc), a multimedia presentation tool (Impress), a creator of diagrams (Draw), a database manager (database) and an equation editor (Math). In addition, LibreOffice is compatible with the annotated Microsoft Office documents. This free office suite is available for all major operating systems Windows, Mac OS X and Linux.
In addition, LibreOffice can be installed in parallel with the final version of office suite or have multiple versions installed on your system without problems.
Do not forget that these versions of LibreOffice candidates are not recommended for normal use and everyday. For this type of daily use is best to installed final version.