what is the extension for files in Microsoft Outlook?

[paulinlondon]

I need to back up all my MS Outlook files, and I have forgotten the relevant
file extension.

Many thanks

Paul

 

[Mary]

It's .PST. The MS Office download site has a Backup utility for Outlook that
you can download and use that works well.

 

[Russ Valentine [MVP-Outlook]]

The file you need to back up is your Personal Folders file (*.pst) It's
where all the mail, calendar, contacts etc are stored.

Take a look at these pages for info on Outlook data backup:
http://www.slipstick.com/config/backup.htm