OpenOffice.org is a free, Open Source alternative to MS Office with a Word compatible word processor, a complete Excel compatible spread sheet program and a Power Point like presentation software and drawing program and also allows to save to PDF file.
In addition, OpenOffice.org offers enhanced printing capabilities and options for direct connection with external email programs as well as form-letter management to send letters to addresses from a database.

OpenOffice.org includes:

Writer – a word processor you can use for anything from writing a quick letter to producing an entire book.
Calc – a powerful spreadsheet with all the tools you need to calculate, analyse, and present your data in numerical reports or sizzling graphics.
Impress – the fastest, most powerful way to create effective multimedia presentations.
Draw – lets you produce everything from simple diagrams to dynamic 3D illustrations.
Base – lets you manipulate databases seamlessly. Create and modify tables, forms, queries, and reports, all from within OpenOffice.org
Math – lets you create mathematical equations with a graphic user interface or by directly typing your formulas into the equation editor.

OpenOffice.org is easy to use:

* the software looks and feels familiar and is instantly usable by anyone who has used a competitive product
* it’s easy to change to OpenOffice.org – the software reads all major competitors’ files
* few language barriers – if it’s not yet available in your language, the chances are it will be soon
* OpenOffice.org is supported by a global community of friendly volunteers, only too happy to provide assistance to newcomers and advanced users alike

OpenOffice.org is free software:

* you may download OpenOffice.org completely free of any licence fees
* install it on as many PCs as you like
* use it for any purpose – private, educational, government and public administration, commercial…
* pass on copies free of charge to family, friends, students, employees, etc.

OpenOffice.org is standards compliant – certified by OSI as open-standard compliant, and the first software package in the world to use OASIS OpenDocument Format (ISO 26300) as its native file format.

You can download OpenOffice.org 3 to test (145 MB):

But this version software is not recommended for production use at this stage. For production, download (127 MB):