I know this topic has been posted several times but I have recently lost a large chunk of my data for my prezi which was about 20+ pictures and a large amount of edits... all in all a good 4 hours of work Is it possible to revert it to a previous save? I think the last good save was around 8-8:30 on 4/5/13 My prezi is called "We Didn't Start The Fire"
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