To do this, select the File tab in Outlook and click Import and Export.. Select Export to a file, pick Comma Separated Values (CSV), and select the calendar you want to export. Then, go into Google Calendar, click the Settings tab, click Import Calendar, and select the CSV file you exported earlier.Syncing from iCal and Mozilla Sunbird. Google provides easy-to-follow directions if you want your Google Calendar to sync with Apple's iCal or Mozilla Sunbird.o do this, select the File tab in Outlook and click Import and Export.. Select Export to a file, pick Comma Separated Values (CSV), and select the calendar you want to export. Then, go into Google Calendar, click the Settings tab, click Import Calendar, and select the CSV file you exported earlier.