- Open the Microsoft 365 admin center.
- Click Show all on the left hand pane:
- This will display further administration options. Click SharePoint under Admin centers:
- Click on More features:
- Click on Apps -> Open in the right hand pane:
- Click on App Catalog
- Click on Apps for SharePoint:
- Click on Upload, browse to the app file which you can download here, and upload it to your SharePoint tenant.
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