FAQ
Clicking on Generate trimming options freezes
It is very likely that you have to enable the ActiveX support in your Excel.
To do that, go to Excel -> Options. There, select Trust Center and pick ActiveX Settings. From the list, try different levels of restrictions.
Note
It should work if you choose Prompt me before enabling all controls with minimal restrictions.. If that's not the case, just choose Enable all controls without restrictions....
Buttons are unresponsive
Very likely Clicking on Generate trimming options freezes solves this issue as well.