Understanding What is OLK File Extension?
Overview: OLK file format
The OLK file extension is an acronym for Outlook Address Book, associate with Mac Outlook and introduced by Microsoft.
The .olk files are used by Mac Outlook email application to store address book information for people and organization such as phone numbers, names, addresses, company data and other contact information.
Application Category
Database files
Organization
Microsoft Corporation
Operating System
Mac OS X
Different Types of OLK File
Outlook for Mac uses specific file variants for different data types:
Version Specifics:
- Outlook 2011 for Mac: Uses OLK14MESSAGE and OLK14MSGSOURCE.
- Outlook 15 for Mac: (Office 365 subscribers) uses OLK15MESSAGE file.
Data Records:
- OLK14Message: Saves header information of emails.
- OLK14Msgsource: Stores email body information.
- OLK14Category: Saves categories (Personal, Family, holiday).
- OLK14Event: Stores event info (time, date, visitors).
- OLK14Contact: Saves emails, names, phone numbers.
- OLK14Signature: Saves mail signatures in HTML format.
- OLK14Mailaccount: Account info and login details.
Technical Specifications
MIME Type
application/octet-stream
File Extension Details
.olk
File extension for Outlook Address Book
OLK File Location
- OLK14MSGSOURCE:
Username\Documents\MicrosoftUserData\Office2011Identities\MainIdentity\Data Records\Messages_Source\OM\OB\OT - OLK14Message:
Username\Documents\MicrosoftUserData\Office2011Identities\MainIdentity\Data Records\Messages\OM\OB\OT
Application Support
Outlook 2011 for Mac
Outlook for Mac
How to open and view OLK file
OLK file can be opened using Outlook for Mac and its various versions or free tools mentioned below.