Excel addins problems

[henryg]

I am using Excel 365 (beta 2212 build 1591.2000) and somehow my add-ins seem to have become corrupted.

In particular I want to use the Advanced Formula Environment which I originally installed some time ago which shows under Insert/"My Add-ins", but after (re?)adding it it initially shows on the toolbar, but when I reopen excel it is gone again.

I have two other add-ins that I don't use, so I thought I would remove the whole lot and start again, but the process fails "We are unable to remove.... Try again in a few seconds". Clicking on "Manage My Add-ins" takes me to the the Store but where only the Advanced Formula Environment shows on my account.

How can I delete all these add-ins from my pc/Excel so I can start again please?

 

[henryg]

In the end I managed to get the add-in into my account, but it still did not show on the Ribbon in the Home tab. I had to create a new group and then add it manually.