There are two types of Outlook backup files: Personal Folders Backup (.pst) and Outlook Express Backup (.dbx).
The Personal Folders Backup (.pst) file type is used to back up your e-mail, contacts, and calendar information. The .pst file can be restored to your computer if your Outlook data is lost or corrupted.
The Outlook Express Backup (.dbx) file type is used to back up your e-mail messages. The .dbx file can be restored to your computer if your Outlook Express …
