Not Able to find Files in Microsoft Outlook 2007

I am not able to find the suffix for Microsoft outlook 2007 ? I was using Microsoft outlook early. Can any one help me how to find suffix in Microsoft Outlook 2007.

For Microsoft Outlook 2007 suffix is .pst and it depends on what operating System your using too.

I am using Windows Vista for the time being

The deafult location of Microsoft Outlook 2007 in Vista is

C:\Users\username\AppData\Local\Microsoft\Outlook