iCal 3.0 Help
Exporting and importing iCal information
If you want to move a copy of all the events on one calendar to a calendar on another computer, you can export the calendar information, and then import it into iCal on the other computer. You might want to do this if you want to archive a calendar or if you want to edit the calendar on another computer.
To transfer calendar information between computers, do one of the following:
To export the events on a calendar, select the name of the calendar in the Calendars list, and then choose File > Export. The events are exported as a “.ics” file.
To import calendar events, choose File > Import, locate the calendar (.ics file) you want to import, and then choose the calendar you want to add the events to. You can also drag a .ics file from your desktop to iCal.
You can also create a backup copy of your calendars by choosing File > “Back up iCal.”