The following is a list of data store and configuration files used by Microsoft Outlook. Some of the folders might be hidden folders. To view them, do one of the following:
Windows XP
- Click Start, and then click My Computer.
- On the Tools menu, click Folder Options, click the View tab, and then click the Show hidden files and folder option.
Windows 2000
- Double-click My Computer on your desktop.
- On the Tools menu, click Folder Options, click the View tab, and then click the Show hidden files and folder option.
Your configuration may not include all of the following files. Some files are created only when you customize Outlook features.
Outlook data files (.pst)
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Outlook
Offline Folders file (.ost)
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Outlook
Personal Address Book (.pab)
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Outlook
Offline Address Books (.oab)
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Outlook
Command bar and menu customizations (.dat)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Outlook
Navigation Pane settings (.xml)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Outlook\Outlook.xml
This file includes Shortcuts, Calendar, and Contact links.
Registered Microsoft Exchange extensions (.dat)
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Outlook
Outlook contacts nicknames (.nk2)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Outlook
Rules (.rwz)
Print styles (Outlprnt with no extension)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Outlook
Signatures (.rtf, .txt, .htm)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Signatures
Stationary (.htm)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Stationary
Custom forms
drive:\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\Forms
Dictionary (.dic)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Proof
Templates (.oft)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Templates
Send/Receive settings (.srs)
drive:\Documents and Settings\<user>\Application Data\Microsoft\Outlook
Message (.msg, .htm, .rtf)
drive:\Documents and Settings\<user>\My Documents