There's only other folder it might be in, and that's only if you're running
Windows Vista. In that case, look in C:\Users\<your
name>\AppData\Local\Microsoft\OFFICE.
I'll repeat, in case you missed it, that first you must set the option in
Windows Explorer (a.k.a. My Computer or just Computer, depending on version) to
display hidden files and folders. If that option is turned off, you won't find
the file even with a search of the entire disk.