Microsoft Excel was originally a Macintosh program but was later ported to OS/2 and Windows.
Microsoft's original spreadsheet program for the IBM PC was called Multiplan.
This is a 1991 16 bit version for OS/2.
Microsoft Word appeared first on the IBM PC and was available for MS-DOS, Atari TOS (as Microsoft Write), OS/2 (VIO and Presentation Manager), Windows, Windows NT, and Macintosh. I believe there was a version for NEXTSTEP too.
This is a 1992 16 bit version for OS/2.
Finally, this is a well-known version of Microsoft Word that ran natively under both MS-DOS and OS/2 from 1990. I am certain most people knew it from MS-DOS.
