The OAB file extension is for the Offline Address Book. It contains contact information from Microsoft Outlook. OAB files store names, emails, phone numbers, and other details.
OAB files are data fi...
The OAB file extension is for the Offline Address Book. It contains contact information from Microsoft Outlook. OAB files store names, emails, phone numbers, and other details.
OAB files are data files. They are not documents or media files. OAB files are not meant to be viewed directly.
OAB files are supported on 2 operating systems. Different software is needed to open OAB files on each system. Microsoft Outlook is the most popular program to handle OAB files. There are 1 other programs that also support the format.
If you need to open an OAB file, this article explains the best solution. We will discuss how to view multiple OAB files without using Outlook.
To associate OAB files with the right application:
On Windows, right-click an OAB file then “Open with” and “Choose another app”. Select a program and check “Always use this app”.
On Mac, right-click the OAB file and “Open with” > “Other…”. Choose a program and check “Always Open With”.
On Linux, right click the file and select “Open with” to pick another program.
On iPhone, tap the file.
You may need to update the application you normally use for OAB files. Only the latest version supports the format. Or scan the OAB file for viruses with antivirus software.
OAB files cannot open directly in Outlook. Use third party applications to view OAB file data.
Microsoft Outlook
Exchange Server