High Quality Content by WIKIPEDIA articles! Microsoft Excel is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called VBA. It has been the most widely used spreadsheet application available for these platforms since version 5 in 1993. Excel forms part of Microsoft Office. The current versions are Microsoft Office Excel 2007 for Windows and 2008 for Mac. In late 2009, Microsoft released the beta version of Microsoft Excel 2010.