5 1/4″ floppy

Ok, first you have to know what a 5 1/4″ floppy is. If not, keep going. The next is, don’t ask why this needs to be done. It really doesn’t. Here’s the situation. I have a user that (may)want to access some files on a 5 1/4″ floppy. Getting past a BIOS that won’t support this, is that any way to take an external 3.5 USB floppy and plug in the 5.25? Any other alternatives, (yes, I know get an old computer). I don’t think it’s worth the trouble, but I would like to know if it’s possible.
Thanks.