Shared Calendar heading, with the person's name who shared the calendar below it. Let’s take a look at how to share an Outlook calendar, whether the recipient is in the same organization as you or not. In the Calendar Properties box, choose Add. Note: If the Open Shared Calendar or Calendar Permissions buttons are. On the Organize tab, choose Calendar Permissions.
Note: The shared calendar appears in the left navigation pane under the Sharing your Outlook calendar is easy, but how you do, it matters if you don’t want the people you share it with struggling to access it. Share a calendar with someone At the bottom of the navigation pane, select the Calendar icon. Mac users accepting a shared calendar go to Step 3. When using Outlook for iOS(iPhone, iPad, etc.) or the online version of Outlook, calendars will share without any extra steps or help.
At the bottom of the navigation bar, click Calendar.Follow the steps below to open it on Mac: If both recipients are using the Exchange account in Outlook for Mac, we should not directly open the xml file to view the shared Calendar. I notice that you are sharing the Exchange Calendar to recipients, what's the account type for your recipients? Exchange account with the same Organization as yours or other Internet account type?