How to fix: Excel Data not showing – not visible – data area is grayed out.ġ. Finally after some research I found the following solution to resolve the 'Excel Worksheet data not showing' problem. As a first try, I repaired the MS Office (2007) installation but the problem still exists. One of my customers, faced the following strange problem when he opens several Excel files: The Excel file seem to open normally, but the Excel won't show the worksheet (Worksheet area is grayed out and the data doesn't appear at all).
