The main components of the OpenOffice.org Suite are the Writer (word processor); the Calc (spreadsheet); Impress (presentations); Draw (graphics); and Base (database). OpenOffice.org provides everything most people need in an office productivity suite.
OpenOffice.org is both easy to use and easy to migrate to, for both beginners and experienced users. It has a familiar user interface, and is able to read and write the vast majority of legacy file formats, including those of Microsoft Office.
OpenOffice.org is released under an open-source licence (the LGPL), which means it may be used free of any licence fees, for any purpose: private, governmental, commercial, etc. Once acquired, either as a free download or as a CD, it may be installed on an unlimited number of computers, and may be copied and distributed without restriction. It is supported in over seventy languages world-wide.