Adobe Acrobat Reader (1994) 18 Document Windows OS2

Acrobat Reader is the free software from Adobe used to read, view, and print documents created by the commercial Adobe Acrobat product. Its primary strength is that documents appear and print identically across differing systems.

• 3.x

Microsoft Excel (1985) 133 Spreadsheet OS2 MacOS Windows

Excel, from Microsoft, is a powerful spreadsheet application for Mac, Windows, and OS/2. Excel was first released for the Mac. When it was ported to Windows 2.x, they started at version "2.0" to one up current Mac version. There was never a DOS version. Instead, DOS and 8-bit platforms used the older Microsoft Multiplan. Excel was later bundled as part of Microsoft Office

• 2.2
• 3.x