.IAF File Extension

Settings file created by Microsoft Outlook, an email and calendar program; stores Internet Mail Account settings in a proprietary format; used for exporting email settings to another Outlook installation.

IAF files can no longer be exported by current versions of Outlook. However, Outlook 2002 Standard Edition, Outlook 2003, and Outlook 2007 can import them through the following menu option: File → Import and Export → Import Internet Mail Account Settings.

IAF files can also be opened using the Online IAF Decoder Web browser-based application.