This is a file that my gf really needs for work. Every time she opens it, excel "unexpectedly quits." Same thing happens on my computer. It only happens with this one file - every other excel workbook opens as normal. Sometimes, when we reopen excel after a quit, it will, by default, open to a certain file. When that happens, it is possible to open the problem file by opening it as a copy or as read only from within excel- not as the original. However, any attempt to copy the data to another file or to save the file under a different name causes excel to quit. The file will open on a PC, but that's not an option for her to do her work. It seems this document is corrupted. Do you agree? What can be done? This is very important for her job... G4, 10.3.5 thanks!