OpenOffice (open source)

[Tami]

Compatible with other major office suites, http://www.openoffice.org/product/product.html is free to download, use, and distribute. Download it now, and get:

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.