OAB File Extension

The OAB file extension was created by Developer and is also known as the Offline Address Book. OAB is classified as a Data Files and The format of this file type has not been determined yet. You can open OAB files in Microsoft Outlook program.

Offline Address Book File Type

What is a OAB File Type?

Free Online OAB Tools & Apps

Access powerful and secure free online OAB tools to convert, view, edit, merge, split, and compare OAB files — all without installing any software. Our tools support the .OAB (Offline Address Book) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your OAB files directly from your device with ease.

OAB Converter

Open OAB

Edit OAB

Compare OAB Files

Merge OAB Files

Split OAB Files

OAB Metadata Viewer

OAB Files Common Issues

There are few common issues with the Offline Address Book .OAB File Extensions while opening the .OAB files on Windows and MacOs, we have solution to those issues such as:

Can't Open OAB Files?

1. You must have supported software programs installed for Offline Address Book on your system such as Microsoft Outlook.
2. Associate default Microsoft Microsoft Outlook program for *.oab (Offline Address Book) files.
   
   

   Associate OAB Default Program on Windows

   1. Right-click a *.OAB (e.g example.oab) file and click Open With.
   2. In the Open with dialog box, click Microsoft Microsoft Outlook program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .oab files.
   
   

   Associate OAB Default Program on MacOs

   1. Click *.OAB (e.g example.oab) file and click information -> Open With.
   2. In the programs list, click Microsoft Microsoft Outlook program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Microsoft Outlook extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related OAB File Extensions

OAB default file extension is .OAB and other similer related extensions are:

All Platform Software Programs for OAB File Extension

List of all softwares that can open the OAB files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open OAB File on Windows

	Software	License	Developer
	Microsoft Outlook 365 for Windows	Commercial	Microsoft

Open OAB File on Mac OS

	Software	License	Developer
	Microsoft Outlook 365 for MacOs	Commercial	Microsoft

Open OAB file on Linux

Open OAB file on Web

Open OAB file on iOS

Open OAB file on Android

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About OAB - Offline Address Book