I installed an excel add-in two months ago which has been working fine. I am using Microsoft 365
Today I opened a worksheet that uses the add-in, but it is no longer available
I have gone to 'Manage Add-ins' (from the 'Developer' tab and then from File>Options>addins, and the add-in is listed but is not enabled.
I check the box next to it and press 'OK'
However, the add-in is not re-enabled and remains disabled.
I have conducted a quick repair of office but this does not solve the problem
I could think of two ways forward but all suggestions welcome
(1) re-install the add-in from a different location. But then there would be two 'versions' of the add-in known to excel, which could create problems
(2) remove the add-in and re-install. But I can find no way to remove the add-in
Help on either of these, or a further suggestion, would be welcome.
