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View Manage And Install Add Ins In. Turn on Allow in incognito. If you dont see Add from the Office Store as an option in the Exchange admin center under Organization Add-ins New you may be able to install an add-in for Outlook from a URL or file location.
In the Add-Ins available box select the check box next to the add-in that you want to activate and then click OK. Add a Get Add-ins icon to your message window. Go to Administration Utilities Installation Install addins for Office.
On your computer open Chrome.
Select the add-ins to add remove load or upload. Find a corrupted extension and click Repair. Open Excel File Options. Select AddIns Manage.