To import an .ics file into Apple's iCal, simply drag and drop the .ics file onto the iCal icon in the Finder or dock, or choose "Import" from iCal's File menu.

Since simply downloading the .ics file from an email invite or the web won’t get it into your Google Calendar – you’ll need to take a few steps to import it. 1. Download the .ics file to ...

Click the gear icon in the upper right corner and select ... With multiple calendars, this will be ICS files within a ZIP format. Unzip this file to access the individual ICS files.