Pretty much all there is to it. Recently got office365 and it's been nothing but trouble, poor integration with my windows phone and now i can't even open my files. Excel 2013 (desktop) is useless to me because it can't open an excel sheet I want to work
on. It's only 7.5 mb in size.
It can open previous versions of the file but the latest version of my sheet i'm working on refuses to open. I have no idea why this could be.
If the file your having troubles with was created with 365 try to create another file to see if it is corrupt. Otherwise restart your computer or try to repair office. Let me know if any of these worked.
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