I need to tar, copy or zip an ASCII text file that is large onto multiple floppy disks from a Unix machine. Then I need to restore this file onto a Windows PC for a data conversion process. Can anyone tell me how I do the initial step in Unix that will allow Windows to access the file? Thanks!

Look at the pax command. It will span multiple volumes. So will cpio. You will probably have an easier time finding a utility to handle a pax archive extract for Windows than you will a cpio program. pax -wvf /dev/rfd0 mybigfile As each diskette becomes full, you will be prompted with: pax: Ready for volume X pax: Type "go" when ready to proceed (or "quit" to abort): I found a number of Windows versions of pax with a simple search. It's been a lot of years since I used SCO, so I'm not sure of the name of the raw device for the floppy. If I remember correctly, they use some strange thing like: /dev/rfd0135ds18 (for a 3 1/2 hi-density diskette drive).