I tried copying a .mp3 file I downloaded to the Pi to a USB drive. I want to move that file to Windows 10. It is on the USB stick, but Windoze now can't read the stick. I think I have the wrong filesystem on the stick. I have spent two days trying to figure out how to move the file, but without success. How do I format a USB drive so that Win10 can recognize it? Thanks in advance.