Hello Robert,

my bet is that xenix is what the filesystem signature is shown as by linux tools (cfdisk etc), but if the drive is from an OpenServer system, it's more likey formatted as HTFS - xenix is *very* old. I don't think linux ever was able to mount these, unfortunately. Your best bet might be to try to find someone with an OpenServer system willing to mount your disk and copy its data over a network or say a FAT filesystem. SCO used to allow home users to get free evaluation copies of their OS, so if you're desperate enough, you might try to see if that is still possible and install it on a spare machine and salvage what you can yourself.