Microsoft Excel is a spreadsheet application written and distributed by Microsoft for Microsoft Windows. It allows using calculation, graphing tools, pivot tables and a macro programming language called VBA. So, it is the most popular table processor available for these platforms since version 5 in 1993.

 

Microsoft Excel up until Excel 2007 version used a proprietary binary file format called Binary Interchange File Format (BIFF) and .xls file extension. Specification was closed but since 2008 it was published. Besides, most of Microsoft Excel can read CSV, DBF, SYLK, DIF, and other formats.