How to recover unsaved documents includes DEMONSTRATION.
EDIT For MAC see end of description.
This is an example on WINDOWS 8 but it should work on ANY WINDOWS. I used Word 2013 as an example (works with Word 2003, 2007, 2010).
This worked for me, I hope it helps you.
The Locations (please was explanation): C:\Users\[username]\AppData\Local\Microsoft\Office\UnsavedFiles You must change [username]. Watch the video for details.
OTHER LOCATIONS:
C:\Users\[username]\AppData\Local\Microsoft\Office
C:\Users\[username]\AppData (watch video on replacing “[username]”)
C:\Users\[username]\AppData\Roaming\Microsoft\Word\ (same again with replacing "[username]")
THEN in the search box for the whole app data folder just type in "autosave" or the document name and hopefully yours comes up. If not, try just part of the document name.
C:\Users\[username]\AppData\Local\Microsoft\Office\UnsavedFiles (same, change name)
PATH UPDATE for Mac:
Library -- Applications -- Support -- Microsoft -- Office -- Office 2011 Autorecovery
I don't have a Mac on which I can test variations but based on the variations for the windows examples, using this location path as a base, you should be able explore around to find your work.