I'm not sure I fully understand, but if you're looking to transfer files from the 8500 to a Windows PC, you have a few options:
1. You could get a SCSI CD burner (I use a Yamaha, but I've also had good results with NEC / Sony drives), and install that in your Power Macintosh. Get yourself an old copy of Roxio's Toast, and you'll be able to burn Windows-compatible CDs, easily.
2. You could buy a USB floppy drive for your PC, and use your Mac's built-in floppy drive to read PC floppies. Aka sneakernet.
3. You could buy a USB PCI card for the 8500, install Apple's USB drivers under 8.5 / 8.6 and use some bargain basement flash drive.
4. You could use the built-in Ethernet on the Mac to either setup a file server or connect to the Windows machine setup as a file server. This can be tricky with older OS versions, but there's quite a few guides and utilities on the net.
Good luck!