An affordable suite of word processing, spreadsheet, and presentation graphics applications, ThinkFree Office is perfect both for home and business users. Its powerful yet easy-to-use applications can seamlessly open, edit, and save directly to corresponding Microsoft Office file formats, including DOC, XLS, and PPT files. ThinkFree Write, Calc, and Show allow users to effortlessly exchange files with friends and coworkers using Microsoft Office applications. The unique, pure Java architecture enables ThinkFree Office to run on Windows or Macintosh operating systems. ThinkFree Office features integrated, Internet-based file sharing and storage with end-to-end security, and includes free online upgrades for one year.