Add-ins ribbon missing in Excel 2007

I was amazed that for some reason my installation of Excel 2007 didn’t have the Add-Ins ribbon like everyone else does. I don’t know how this happened, but here is the fix that worked for me.

1. Open Excel
2. Click Office button.
3. Click Excel Options button.
4. Click the Customize tab on the left.
5. Choose Commands Not in the Ribbon from the Choose commands from drop down list.
6. Click the Add-Ins item in list
7. Click the Add >> button
8. Click the OK button.