You can import calendars that have been created from within other applications. The calendar you want to import needs to be available as iCal file.
How to import calendars from a file:
Click theicon next to . Click on .
You can also click theicon in the menu bar. Click on .
The Import from file window opens.
Click on. Select a file.
Enter a name for the new calendar. Click on.
Parent topic: Adding Calendars