Open Office 3.3 for Windows- Reads and writes MS Word Excel Powerpoint files Includes Word Processor, Spreadsheet, Database, Presentation, and Graphing programs Fully compatible with nearly all modern office file formats, including .doc, .xls, .ppt, .wps, etc.. Will export directly to all of these formats, plus will create .PDF files natively Has an easy-to-use and familiar layout and format Supported by a massive user and programmer community