ThinkFree Office Please expand this article . Further information might be found in a section of the talk page or at Requests for expansion . ThinkFree Office by Haansoft Corporation is an office suite written in Java that runs on Windows , Linux , and Macintosh . ThinkFree Office includes a word processor ( Write ) , a spreadsheet ( Calc ) , and a presentation program ( Show ) . ThinkFree Office reads and writes to Microsoft Office file formats ( .doc , .xls , and .ppt ) . ThinkFree Office has a look and feel similar to Microsoft Word , Excel and Powerpoint allowing users to switch over easily . ThinkFree Online is a free online edition that runs Write , Calc and Show in a browser using a mix of Java applet and Ajax technology . Each user is allotted 1 GB of online storage space for saving documents . ThinkFree Online lets users collaborate on documents with others , publish to a blog or the web . ThinkFree Online also keeps a version history per document of the changes that are made . The Java applet version , or Power Edit mode , exists for all three applications , and appears to be an applet port of the original desktop versions written in Java . Ajax -based Quick Edit mode ( offered for Write only ) can run without the need of starting up an applet . ThinkFree Online Features Accessibility of documents and applications from any computer online . Microsoft Office compatible Blog publishing Online storage and backup Supports inserting images from Flickr Print , Preview and Publish capability Export files to PDF format without any addtional software . Fully online Product family ThinkFree Office Desktop Edition ThinkFree Office Portable editions : ThinkFree Office 3 , Portable Edition for U3 -Windows and U3 smart drive required ThinkFree Office 3 Show , iPod Edition ThinkFree Office 3 , Server Edition ThinkFree Online - free online service See also List of office suites List of online spreadsheets External links ThinkFree Office Review of ThinkFree Online  This software -related article is a stub . You can help Wikipedia by expanding it . Categories : Articles to be expanded | Software stubs | Ajax ( programming ) | Office suites | Web applications In other languages : Français 