Where's the irony? Microsoft started (ignore the DOS part) as a company that developed applications for Macintosh specifically word and excel which started on the Mac and only got Windows support in later versions with Word 4/Word for Windows 1.0 and Excel 2.0.
> Microsoft started (ignore the DOS part) as a company that developed applications for Macintosh
I think you're saying we should ignore the first 10 years of the company. The company started in 1975 creating a BASIC interpreter for the Altair; the first version of Excel for Macintosh was released in 1985.
Looks like you are correct Excel 1.0 and Word 1.0 were released for the Mac in 1985, Word 1.0 was released for MS-DOS 18 months earlier.
Excel was never released for the MSDOS and both it and Word came to Windows in 1987.
The first Microsoft spreadsheet, which ran on DOS, was called Multiplan.
The graphical versions of Word and Excel were developed for the Mac. Windows versions of Word and Excel superseded the DOS versions of Word and Multiplan.
