tl;dr - Use this shortcut (shared on RoutineHub) to open .ics files (invite.ics/calendar.ics) and add them to your iOS calendar You know those attachment files that you get when someone sends you a meeting invite – invite.ics/calendar.ics? Well for some reason they don’t open right on iOS. iOS will let you review the details of the event, but won’t let you add it to your calendar. It’s infuriating. Generally there are only two known ways to get a calendar file to actually show the “...