How/why the hell....

[Shoddy]

Use a ThinkDOS computer's wizwrite program, you can then either copy and paste or move that file to the disk, you do this by switching drives. The command for this is "drive fd0" (fd0 is the disk). Once you are done transferring files you may return to the hardrive using the command "drive hd0" (hd0 being the hardrive)