This one was an annoying one…
I had to help a customer uninstall the Excel addin for Dynamics 365 for Operations. This should be a simple task (everything is if you know how to do it). So I went into Excel Add-ins using File – Options – Add-Ins… No Dynamics Excel addin:
WFT!!! A nice person then showed me that there is another place for Excel Addins (obviously)… You go to Insert – My Add-ins… Presto!