It heavily depends on the version of Outlook. But I found searching for 'file locations' in the Help to always give a suitable answer.
And it heavily depends also on the configuration. If you're connected to an Exchange server, everything is there. If you're stand alone, most - but not all - is kept in one gigantic pst-file (by default, I think, called Outlook.pst) located in c:\windows in older OS'es and somewhere in your Documents and Settings in newer OS'es.
You don't tell why you ask the question, but you might find this a handy link: http://support.microsoft.com/default.aspx?scid=kb;en-us;196492 (How to backup, restore or move Outlook data) for Outlook 2000. Details vary for other versions.
Hope this helps.
Kees
Can someone tell me the name and file extensions of the following files in MS Outlook?
1. Outlook contacts list
2. Mailboxes
3. Outlook appointments
Are they all in the same file or in 3 individual files?
Thanks

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