If you use Google Calendar, and wish to export, just open https://www.google.com/calendar/exporticalzip and you'll get an archive that contains your calendar data. “In the resulting compressed folder, you'll see an ICS file for each of the calendars to which you have permission to make changes and manage sharing. Note that this method will not export calendars in your Other Calendars list (e.g. public calendars you've added to your list, shared calendars with view access only, etc.),”
To export content from a specific calendar, follow these steps:
- In the calendar list on the left, click on the down-arrow next to the appropriate calendar and select "Calendar settings." (Alternatively, click on "Manage Calendars" at the bottom of the calendar list, then click on the name of the appropriate calendar.)
- Click on the "ICAL" button under "Private Address" and click on the displayed URL.
- Save the exported file to the desired folder on your computer.
If you use iGoogle to view your calendars, it's good to know that there's a new version of the Google Calendar Gadget, that uses infinite scrolling for the agenda and it shows event descriptions without opening a new page.
Source:→ Google System