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.WAB File Extension

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File TypeWindows Address Book

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CategoryData Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


Address book file that contains contact information, such as names and e-mail addresses; used by Microsoft Outlook Express, a popular free email program; similar to the .PAB file used by the full version of Microsoft Outlook.

More Information

WAB files can be copied and used to backup and restore Outlook Express contact data. They can also be used to import contacts into Outlook.

NOTE: The Stellar DBX to PST Converter program can be used to convert Outlook Express WAB files to the Outlook .PST format. You can then save converted files to PDF, HTML, Office 365, and RTF formats.

Programs that open WAB files
Microsoft Windows LogoWindows
Microsoft Windows Contacts
Microsoft Outlook Express
Microsoft Outlook 2016
Microsoft Internet Mail and News
Stellar DBX to PST Converter
Updated 8/12/2015