All Outlook data is in one file. The file you need 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

Signature
Russ Valentine
[MVP-Outlook]
> What is the name of the file that the Contacts for Outlook
> is stored?