If you are seeking information about file extensions, then you are in the right place at the right time.

Details of extension .wab

On this page, we're going to take a closer look at the .wab file extension, which is related to Windows Address Book Data.

We'll explain what exactly a .wab file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .wab files into different formats, we'll give you some tips on how to do that too.

Let's see the file format associated with this file extension!


  1. Windows Address Book Data

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Windows Address Book Data

wab file - Windows Address Book Data
The WAB file belongs to the Data category and works with Windows Address Book, being used as a Windows Address Book Data. Windows Address Book is a component of Microsoft Windows that lets users keep a single list of contacts that can be shared by multiple programs. It is most commonly used by Outlook Express. The developer is still actively supporting the Windows Address Book, likely. According to our data, Windows Address Book uses one more file types.
Application: Windows Address Book
Program name: -
Category: Data files
Mime-type: application/octet-stream
Related extensions:
.wab~ Windows Address Book Backup
.contact Windows Vista Contacts Data
.group Windows Vista Contacts Group Data
.nab Novell GroupWise Addressbook

The .wab file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .wab extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .wab file extension wrong?

In our database, we came across the following similar extensions:

.wwb Corel WordPerfect Button Bar Data
.wag Urban Chaos Saved Game
.eab Sybase PowerDesigner Enterprise Architecture Model Backup
.awb ActiveWords WordBase Data
.wba WindowBlinds Skin
.waf Internet Explorer Cache

The .wab extension is frequently misused

People sometimes confuse the .wab filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

wwb (1), wag (1), eab (1), awb (1), wba (1), waf (1), dab (1), aab (1), wxb (1), wb (1)

Having trouble opening a .wab file?

If you want to open a .wab file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .wab association can trigger this error.

Windows can't open this file:

File: example.wab

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android