OpenOffice.org - The Free and Open Productivity Suite

OpenOffice.org - The Free and Open Productivity Suite

OpenOffice.org 3 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. It 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 completely free of charge for any purpose.

My comment: This is a great alternative to a paid-for version, such as Microsoft Office. I can also use it to open & create PDF files.