How to: Change default calendar app

You can choose which app opens when you click calendar links or invite files. Follow these steps to set Outlook as your default calendar app.

1. Open the Calendar app (default one)
2. In the menu bar, choose Calendar > Settings (or Preferences, on older macOS versions)
3. In the General tab, find Default Calendar App
4. If Outlook is listed, select it
5. If it isn’t listed, click Other, then go to your Applications folder and choose Outlook
6. Close the Settings/Preferences window