Create a new blank presentation in PowerPoint, and save it under a new name.
Then, go to Format -> Slide Design, choose to show all documents, and choose the corrupt PowerPoint file. Now, go to Insert -> Slides from File, and
select the corrupt PowerPoint file. Make sure you are set to insert all slides, and then import. If that works, great! I suspect, however, that you might crash at that point. If so, try repeating the process, inserting specific slides one by one until you
find the problem one. After that, save the file, making sure that Fast Saves are off (in Preferences / Save).
If you are unable to open your PowerPoint files then try
PPTX Repair Kit recovery tool. This utility recovers your corrupt and damaged PowerPoint presentations (.ppt, .pot, .pps, pptx and ppsx formats) from MS PowerPoint files.
Visit:-
http://www.pptx.repair/ to
know more about the tool and download free trial version.
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Edited by
johnstevens38
Saturday, July 26, 2014 9:05 AM
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Marked as answer by
albanmontgomery
Saturday, July 26, 2014 5:51 PM