Close side loaded office add-in on excel online?

Question

I'm working on an Excel Task-pane Add-In, and have side loaded it on Excel Online following the instructions on Sideload an Office Add-In on Microsoft Office Online.

The Add-In is successfully loaded, nevertheless, I can't find a way to close/unload it.

On Excel for Mac, a close button is available at the top right corner of the task-pane, but no such button exists on Excel Online.

I`ve already tried to log out and close the browser, but it didn't work.

May you please help on that?

Thanks in advance

Answer 1

In Office Online, add-ins can't be closed, they can only be "collapsed". However, it's worth noting that even when you "close" add-ins in desktop Office, they remain loaded in the document or your user account.

You can remove add-ins by going to Insert > Office Add-ins/My Add-ins and clicking on the "..." on an add-in in tile and selecting Remove. For add-ins that are sideloaded in Office Online, they are stored in the browser's localStorage, so clearing the localStorage will remove them.

Answer 2

The information on what add-ins are loaded is saved together with the document itself. If you open an documented that has been saved with the add-in opened, you (or anyone really) will see this add-in again on opening. If you're talking about the uploaded add-in in the add-in catalog, the add-ins uploaded there should not be saved at all (other than in the document maybe). The add-ins listed there are sourced from the add-in catalog that your Office tenant admin provides.

Hope this helps, Jesse