Inspect document doesn't show anything, Excel 2010

In my Excel 2010 workbook I wen through File > Info > Check for Issues > Inspect document. But as it's shown following, it doesn't show anything. Why? Thanks in advance.

I have all of the comments, hidden row and sheets and invisible objects, but Inspector doesn't see them!
I don't know does my Office need to be repaired (is it faulty!?) or not but I do it if it's needed.

koolkat77 said:

Does this happen on just one excel file or all?

If yes, try repairing your Office installation.

• Office 2010 - Perform Repairs

Maybe this link could also help:

• Using the Document Inspector

I repaired the Office and the problem became solved! Thank you very much.:)