I know there is or was an emulator for that called DOSBOX. I used it
once for grins some years ago. I can't recall any DOS programs I'd want
to run on my MACs, though.
I still run a couple. I still like dBase for database work. It is a
lot easier and more flexible than Access. People seem to use Excel but
it is really a spreadsheet program that people use as a database
program.
I also have a DOS text editor that does things you can't do in any
Windoze word processing program. There are work arounds with Excel but
that is driving an 18 wheeler to the corner store when all you need is
a bike.