Microsoft Excel is a spreadsheet developed by Microsoft for Windows, Mac OS X, Android and iOS. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. It has been a very widely applied spreadsheet for these platforms, and it has replaced Lotus 1-2-3 as the industry standard for spreadsheets. Excel forms part of Microsoft Office.
"A few people have paid me 'a penny' as a joke. I'd get them in the mail, or in person if someone introduced me as the author of Solitaire and the obligatory no royalties conversation came up. I think I'm up to about 8 cents now."