A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Tried everything (turning off hardware acceleration, ignore DDE, repair, KB2994633 etc) but none of it worked.
The Windows Explorer Preview pane showed the xlsx file fine but Excel showed a blank gray screen.
My solution:
- Double click the problematic Excel file
- Go to View tab in Excel
- Click on Unhide - a window appeared to me where I could select to Unhide workbook.
- Voila! :)
I had to re-save / overwrite the file to make the solution permanent. Perhaps if anyone has the same problem, take a backup of the problematic file and send it to Microsoft so they solve this problem once and for all.
I wasted 2½ hours on this - and even installed Office Configuration Analyzer but that did not help either.
Running Windows 10, Excel 2013 with all the latest updates as of Nov 10th 2015.