ThinkFree is a free office suite package that includes ThinkFree Write (word processing), ThinkFree Calc (spreadsheet), and ThinkFree Show (presentation). ThinkFree is designed to look, feel and behave like Microsoft Office and runs the Microsoft Office formats (.doc, .docx, .xls, .ppt and .pptx). It includes multi-language support and the ability to save a document to secure online storage, to control who has access to your document and to publish documents to your own web site or blog.