I worked at a Viking store a few years ago when they first came out with the USB connection on machines. had a
viking at home that used floppy discs to transfer designs. In order to use my designs from home on the new Diamond machine I used an external Floppy disc reader. Plugged the reader into the machine USB, and it transferred the info on the floppy to the machine. Where there's a will there's a way. That way we were able to use two machines at once for embroidery demonstrations.