OpenOffice is quite widely used by Linux users and has applications that serve as good clones of Microsoft Office apps. With open office you can create spreadsheets, presentations, compose documents and perform a wide range of functions that are usually performed using Office apps.
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The Freedom Stick contains a fully accessible version of the Firefox web browser, the full Open Office suite (comparable to Microsoft Office), the Balabolka Text-To-Speech system, an on-screen calculator which allows students to paste their math work into homework or test documents, a "mind mapper" (similar to Inspiration), the Audacity audio recorder/player, and many, many more supports.