Install-Now

.OAB File Extension

A .OAB file is a Offline Address Book, created by N/A.

Open with Microsoft Outlook 365. Available for Windows.

What is a .OAB file?

The file extension .OAB stands for Offline Address Book. This type of file is used by Microsoft Outlook, which is a program for sending and receiving emails, managing your calendar, and keeping track of your contacts. The .OAB file contains important information like people's names, their email addresses, and other details about contacts that you might have saved in Microsoft Outlook. This file is especially useful because it allows you to access your contact information even when you are not connected to the internet, hence the term "offline." To open a .OAB file, you will need to use Microsoft Outlook 365. Microsoft Outlook 365 is a part of the Microsoft Office 365 suite, which is a collection of productivity tools offered by Microsoft. It is available as a subscription service, meaning you pay regularly to use it, and it includes not only Outlook but also other applications like Word, Excel, and PowerPoint. Once you have Microsoft Outlook 365 installed on your computer, you can open the .OAB file by simply launching Outlook and the program will automatically recognize and use the .OAB file to display your contacts. This makes it easy for you to manage your email communications and keep in touch with people directly from the Outlook interface.

Verification

Our goal is to help people find the most up-to-date information about file extensions for Windows, Mac, Linux, Android and iOS. We researched over 10,000 file extensions and their respective programs that open those files. If you want to suggest edits or updates about .OAB file formats, example files, or programs that are compatible. Please contact us.

More extensions