Just to warn you not to write anything on to the floppy (if you have not already), as you should still be able to recover it. I don't have access to my computer at the moment and I can't remember what I used to recover documents - maybe somebody else can help.
If all else fails, you could try a shareware or freeware programme to recover the file. Try www.webattack.com or Tucows for more information. They have several links to this type of software