It is a good thing to keep your Office updated because with each new update Microsoft adds new useful features and fixes bugs. In order our Office add-ins could work correctly on your machine, make sure you are using the most up-to-date Office version.
The easiest way is to check updates via your Office account. Open an Excel file and go to File > Account. Under Product Information, click Update Options > Update Now:
But it may happen that you won't see this pane in your Office. In this case, you can tune updates via Windows Settings.
Responses
I followed your recommendations. Windows / MS office (365) updated.
Abelbits Ultimate Suite checked in com addin menu
No Abelbits tab in Excel (it was there a few hours ago!?
Jay Shulman
Hello Jay,
Please make sure you have installed the latest update of Ultimate Suite to your PC: https://www.ablebits.com/files/get.php?addin=xl-suite
If you still don't see the Ablebits tabs in your Ribbon, follow the steps of Solution 1 described here: https://www.ablebits.com/docs/excel-no-ablebits-tabs/#enable-suite