Also See: How to export my schedule as iCal/ics file?


iOS:

1. Select the attachment and follow the prompts


Android: 

To support calendar files, please first install a calendar import app like 'iCal Import/Export CalDAV' from Google Play. Once installed, follow these steps:

1. Press the View button for the attachment in this email

2. Select iCal App when prompted

3. Choose the calendar into which you would like to import the events

4. Press the Import button


Google Calendar:

1. Save the attached .ics file on your computer

2. Click the down-arrow next to Other calendars and select Import calendar

3. Click Choose file and find the file that contains your events, then click Open

4. Select the Google Calendar where you'd like to import events, then click Import


Outlook Calendar:

1. Save the attached .ics file on your computer

2. Open the Calendar view in Outlook

3. Drag and drop the .ics file onto one of your calendar categories