To import an ICS file into Apple Calendar, open the app on your Mac, go to File > Import, select the ICS file, choose the destination calendar, and click Import. This keeps event details like title, date, time, description, and location intact. If you have multiple files or want to review events first, you can check them using the SysInfo ICS Converter Tool before importing. Read more: https://www.sysinfotools.com/blog/import-ics-to-apple-calendar/