Hi John1397,
Excel 4.0 is a 16-bit application. Is the windows 10 going to be the 32 or 64-bit version?
I looked at the net, that with 64-bit version there isn't a direct way to run 16 bit applications, because the 16 bit subsystem was removed in the 64 bit versions, but the 32 bit versions still have it.
BTW, I'm just curious, why do you need to run Excel 4.0 in a modern computer?