What features do you need, and what interface are you comfortable with? Check out these software packages and see what you like.

	OpenOffice.org 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. OpenOffice.org 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 free of charge for any purpose.
	LibreOffice is a comprehensive, professional-quality productivity suite that you can download and install on computers running the Windows, Macintosh and GNU/Linux operating systems. LibreOffice has six feature-rich applications: Writer (for word processing), Calc (for spreadsheets), Impress (for presentations), Draw (for diagrams and charts), Base (for databases and reports), and Math (to edit and insert equations and formulas).
	The benefits of the SSuite Personal Office Suite are its small size, the fact that it does not need to be interpreted by another operating system like Java or DotNet to run, and that it can operate on any Windows platform with a consistent graphical user interface. It also incorporates a PDF creator for true document format compatibility.
	You can now download fully functional and permanently usable versions of SoftMaker FreeOffice for Windows and Linux for free. SoftMaker FreeOffice is a complete office suite with a word processor, a spreadsheet, and a presentation-graphics program.
	WPS Office Free is your dream solution for a low-budget, no-commitment, free productivity office suite. The smallest size office suite consisting of Writer, Presentation, and Spreadsheets, plus PDF tools to fulfill all of your document needs. Includes a brand new Docer Templates page. Available in English, French, German, Spanish, Portuguese, Polish and Russian.
	The PortableApps.com Suite is a complete collection of portable apps including a web browser, email client, office suite, calendar/scheduler, instant messaging client, antivirus, audio player, password manager, PDF reader, backup utility and integrated menu. Just plug in your flash drive, portable hard drive, iPod or other portable device and you're ready to go.
	Google Docs allows people to create and share documents on the web and access them from any computer or smart phone. The familiar desktop feel makes collaborative editing easy. There are modules for Documents, Spreadsheets, Presentations, Drawings (charts and diagrams), and Forms (creating forms as web pages).