Today’s major 15.21.1 update for Microsoft Office 2016 brings the much-heralded Add-In Store to the Mac version of Word and Excel (although not yet to other components of the suite). Users can update immediately by opening any Office app and clicking Help > Check for Updates.
Once the update’s been installed, the Add-In Store is accessible by clicking its entry on the Insert ribbon (Add-Ins > Store), and new Add-Ins can be installed by double-clicking to view their details, then clicking the Trust It button.
In our tests we counted just 61 add-ins for Excel, and 48 for Word, although the number and type of Add-Ins you see depends on the version of Office 365 you’re subscribed to (our test Mac was subscribed to Office 365 Home).
All add-ins appeared to be free-of-charge, although several tied-into third-party subscription services, such as Mail Chimp.
Add-ins are also managed via the Insert > Add-Ins ribbon option, which opens a dialog box where they can be uninstalled. The easiest way to activate an Add-In for use is to open the Insert ribbon, then select the Add-Ins icon, and then select the add-in from the list.