Sorry, but Excel and Multiplan were concurrent with multiplan being Microsoft’s DOS offering and Excel being on the Mac. Excel didn't move to the PC until later v2.0. There were actually quite a few of us running CP/M via Z80 cards in our Apple II’s. CP/M stuck around for quite awhile on the strength of Wordstar and Supercalc, though dBase was the killer app for CP/M. For home use, it would be years before Microsoft released an app with the simplicity, power and flexibility of AppleWorks. Even then, they finally released Microsoft Works, basically copying much of the functionality of AppleWorks. The 5MB hard drive I mentioned actually came out in 1981 for the AppleII. My first Apple was the //c in 1984. I cold not afford the Mac. The little //c, 9” green monitor, and an Imagewriter was $2500. It was the first instance of a theory I have held ever since that the computer you REALLY want is always $2500. That number has been pretty solid for me for over 30 years.