A PST file is a comprehensive backup of all your data stored in Outlook. If you want to switch from Outlook to Gmail, importing a PST file is the best way to transfer the most data with minimal work.

Archiving (automatic or manual) in Microsoft Outlook helps you to enhance applications’ performance and optimize storage by moving older emails and other items to a separate (archive) PST file. It ...

What is a PST File? The PST File of Microsoft Outlook is a useful application that allows the storage of Outlook emails for both received and sent emails in the hard drive of the computer.