In order to export (save as a separate file) the calendar, do the following:
1.Click the Settings and sharing button that appears when you hover over the calendar line:
2.In the form that opens, click the Export button.
3.In the standard system window that opens, specify the folder where you want to save the calendar file. If necessary, change the file name (by default, the current calendar name is specified) and click Save.
The .iCalendar file will be exported to the specified folder.