You need CrossDos on the Amiga to read PC formatted floppies, but beware. The stock Amiga can only read DD disks, not HD disks. You need an external HD floppy disk drive, like the Power Computing one, to read HD disks.
Ther eis a freeware crossdos type program on Aminet, but not sure what it's called. Search for PC format disk or something like that.
But, I think CrossDos came with WB2 onwards (?) so you should have it, I think.
:shrug: