Outlook:: Open a Shared Calendar

1. In Outlook, navigate to your calendar

2. On the Home Tab, find the Manage Calendars group.

3. Click the dropdown next to Add Calendar and Open Shared Calendar

4. In the Open a Shared Calendar box that opens, click Name...

5. In the Select Name box that opens, make sure Global Address List is chosen under Address Book

6. Find the person or shared calendar you want to open and click OK. 

7. Once you've opened a calendar, you will be able to easily access it again in your Shared Calendars section by clicking the checkbox next to it.