Thinkfree Office for Mac OS X Easy-to-use applications for word processing, spreadsheets, and presentation graphics ThinkFree Write, Calc, and Show are compatible with Word, Excel, and PowerPoint Effortlessly opens, edits, and saves documents into the Microsoft Office file formats ThinkFree's cross-platform technology eliminates file conversion and compatibility issues Integrated, Internet-based file sharing and storage with end-to-end security