I must say I never thought of this site as a source humor, but I had to laugh
at your response. If the idea was, as you thought, to retrieve a document,
I have actually been able to retrieve a prior document by turning the
computer off quickly (as soon as you realize what you've done), without
shutting it down. If you're lucky, when the computer is booted up normally
again, Excel will recover the last autosaved version which can be renamed.