1. Download the .ics file to your computer Save or download the .ics file to your computer. It doesn’t really matter where you put it, so save it in downloads or wherever you'll easily find it.

Microsoft is investigating an issue that triggers Outlook security alerts when trying to open .ICS calendar files after installing December 2023 Patch Tuesday Office security updates.

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.