To export data from Outlook 2011 for Mac, do the following steps:
- Launch Outlook
- On the File menu, click Export.
- Click Outlook for Mac Data File.
- Select an option to filter by category or item type.
To export all items in Outlook, click Items of the following types, and then select all the check boxes.
- Click the right arrow twice to continue.
- In the window that opens, choose where you want to save the data file and click Save.
The Outlook for Mac Data File uses the .olm extension.