this is from Glirock on another post, hope this helps,
Re: Autosave
« Reply #2 on: July 23, 2016, 08:25:11 PM »
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While you are working the file that is saved is your sequence with a .xbkp extension. So you need to rename that file back to .xml to use it. But if you reopened the sequence file in the same directory then it trashes that file with a new backup I believe. You should be able to find the .xbkp file in one of the ...OnStart folders in the backup directory.