Doofus user full disclosure dept.: I'm, uh, <gulp>, heh heh, still
running Excel 97 SR2.
Thanks.
***
The below formula will work, as long as the workbook you are placing
it in is saved. If it's not, you will receive an error because there
isn't a filename associated with it until it is saved.
=MID(CELL("filename",A1),FIND("]",CELL("filename",A1))
+1,LEN(CELL("filename",A1))-FIND("]",CELL("filename",A1)))