How to Delete Apple Subscribed Calendars

Open iCal on your Apple computer. It will be in the Dock or in the Applications folder.
Highlight the subscribed calendar you would like to delete from the list of calendars on the left side of the iCal window.
Press the “Delete” button on your keyboard. A window will open asking if you are sure you want to delete the calendar. You can also choose 'Delete' from the 'Edit' menu in the iCal menu bar
Click “Delete.”
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