A daily updated filename extension database!

OAB file extension

The table below provides useful information about the .oab file extension. It answers questions such as:

  • What is the .oab file?
  • What program do I need to open a .oab file?
  • How can the .oab file be opened, edited or printed?
  • How can I convert .oab files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Outlook Offline Address Book

OAB file is a Microsoft Outlook Offline Address Book. An offline address book (OAB) is a copy of a collection of address lists that has been downloaded so that a Microsoft Outlook user can access the information it contains while disconnected from the Exchange server.
Category: Data files
Application: Microsoft Outlook
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
OAB aliases:
OAB related links:
OAB related extensions:
Microsoft Outlook Navigation Bar

Microsoft Outlook Template

Microsoft Outlook Profile

Microsoft Outlook Personal Folder File

Microsoft Outlook Form Storage

Microsoft Outlook Rules Wizard

Microsoft Outlook Offline Folder File

Microsoft Outlook Personal Address Book

Microsoft Outlook 2000 Auto Complete Nick List

Microsoft Outlook 2002 Auto Complete Nick List

Other types of files may also use the .oab file extension.

🚫 The .oab file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

ab, aob, iab, kab, lab, oa, oaf, oav, ob, oba, oxb, ozb, pab

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Iomega Automatic Backup Data
DB/TextWorks Image Annotation List Backup
Steinberg WaveLab CD/DVD Label Set
MRMC Label Data
ETH Oberon Applet
Orbit Annotation Data
Applix Builder Data
Microsoft Outlook Personal Address Book
Microsoft Flight Simulator Texture Data
Android ADB Backup Archive

🔴 Can't open a .oab file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .oab file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .oab file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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