Love this add-in however after installing and quitting Excel, when re-opening the add-in tab isn't in the ribbon. Upon further confirmation when you go to the Add-ins screen under settings, XLG File Tools shows up under "Active" but the ribbon didn't load it. The only way to fix this is to disable the add-in and then apply/close. Then revisit the options and re-enable it. This resolves the issue.

The add in for my computer is in the %AppData%\Microsoft\AddIns\ folder and i'm using Office Professional Plus, Excel 2013. I don't have Admin rights however (shouldn't matter) and the addin does retain all other preferences when re-loaded. I have numerous other addins that load just fine including a custom one I built so security permissions shouldn't be the issue. I'm not receiving any error msgbox's or anything to indicate there is an issue. The ribbon just doesn't persist on opening excel...