Home : File Types : OLK File

.OLK File Extension

File TypeOutlook Address Book File

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CategoryData Files


This file is saved in a binary format, which requires a specific program to read its contents.

What is a OLK file?

Address book created by Microsoft Outlook, an email application; may contain contact information for people and organizations; can store names, phone numbers, addresses, titles, organization data, and other contact information; used for saving and loading contacts.

More Information

OLK files can be opened manually in Outlook 2003 by typing the following command: Outlook.exe /l olk_filename. OLK files can also be opened by Microsoft Word 2003 and used for mail merge and other document operations.

Outlook contacts are more often stored as Personal Address Book (.PAB) files.

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Programs that open OLK files
Microsoft Outlook 2016
Microsoft Word 2016
Updated 5/24/2010

.OLK Extension Information

This page contains information about the file extension OLK and its known file associations. Our goal is to help you understand what a *.olk file is and how to open it.

The Outlook Address Book file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

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