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Microsoft Access stores data in its own format based on the Access Jet Database Engine. Microsoft Access is a database management system for Windows that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools. It is used to create slideshows, composed of text, graphics, and other objects, which can be displayed on-screen and shown by the presenter or printed out on transparencies or slides. Microsoft PowerPoint is a presentation program for Windows and OS X. It provided more functionality than the previous version. Microsoft released the first version of Excel for the Mac OS in 1985, and the first Windows version (numbered 2.05 to line up with the Mac and bundled with a standalone Windows run-time environment) in November 1987. It is available for the Windows and OS X platforms. Microsoft Excel is a spreadsheet program that originally competed with the dominant Lotus 1-2-3, and eventually outsold it. Word for Mac was the first graphical version of Microsoft Word. Following the precedents of LisaWrite and MacWrite, Word for Macintosh attempted to add closer WYSIWYG features into its package. Word 1.0 could be purchased with a bundled mouse, though none was required. The first version of Word, released in the autumn of 1983, was for the MS-DOS operating system and had the distinction of introducing the mouse to a broad population. Word is also available in some editions of Microsoft Works. DOCX, which has been standardized by Ecma International as Office Open XML, and its SP2 update supports PDF and a limited ODF. Its proprietary DOC format is considered a de facto standard, although Word 2007 can also use a new XML-based, Microsoft Office-optimized format called. Microsoft Word is a word processor and was previously considered the main program in Office.
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