We have someone who created a workbook in Excel 2010 and when we open it in Excel 2013 it will crash. You can open the doc and look at it, but once you start trying to do anything in it, after a random time period, it will crash. Also if you try to resave the document it will crash every time, no matter how long you've been in the doc.
Is there any way we can track down what in the doc might be causing this? I've tried it on several different systems with excel 2013, a few of which have SP1 installed already and it does the same thing. Any suggestions?