If you're running something other than Mandrake, then you can open a terminal (the thing that looks like the ol' Windows DOS box) and type mount /mnt/floppy, and then you should be able to access the files from there (/mnt/floppy).
If you're running Mandrake 8.0+, then it is likely that it has already mounted the floppy when you put it in the drive... in which case, you can simply look in /mnt/floppy to see if there are any files there.
HTH
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