1. Format a 720 floppydisk on the PC or Mac, if you only have HD floppies, put some tape over the extra hole
2. Copy the file files to that floppy on the Atari
3. Read the files on the PC or Mac

IE, the Atari will read and write your PC or Mac 720 floppydisks directly.

PS. The captcha here is terrible, I had to reload 20 times before I got one which was not hopeless to read.

--
Anders Eriksson
ae@dhs.nu