This article explains how to export emails to different file formats and how to back them up to Gmail. The instructions in this article apply to Outlook 2019, Outlook 2016, Outlook 2013, Outlook 2010, Outlook for Microsoft 365, and Outlook for Mac.
How to Export All Emails from Outlook | Export All Your Emails
An Outlook .pst file is a personal storage file containing items such as your emails, address book, signatures, and more. You can back up a .pst file and transfer it to Outlook on another computer, another version of Outlook, or another operating system.
Open Outlook, go to the File tab and select Info.
Select Account Settings > Account Settings.
