OLK14PREF File Extension

OLK14PREF file icon

Outlook Preferences Format

What is a OLK14PREF file?

Outlook Preferences Format, identified by the OLK14PREF extension, is a Settings Files type and includes 1190 files.

The Outlook Preferences Format (OLK14PREF), created by Microsoft, is one of file format they developed, and they also built 242 programs to support them.

OLK14PREF file support extends to various operating systems, including Mac OS. When working with OLK14PREF files, you can rely on 2 programs, including Microsoft Outlook and Microsoft Office.

Programs that support OLK14PREF files

How to open a OLK14PREF file?

If you can’t open a OLK14PREF file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.

When it comes to opening and working with OLK14PREF files, Microsoft Outlook and Microsoft Office are the top choices for users. To install the updated version of Microsoft Outlook, simply go to the Microsoft site and download the installer compatible with all major platforms.

Once the process is complete, Microsoft Outlook should take over as the default application for OLK14PREF files.

Set Microsoft Outlook as the default OLK14PREF program

Changing Default Programs in Windows

  1. Right-click on your OLK14PREF file, then choose the "Open with" option and select "Choose another application" from the available options;
  2. In the pop-up window, select the Microsoft Outlook application;
  3. Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening OLK14PREF files.

Change Default Program on Mac

  1. Right click or Control + left click on the desired OLK14PREF file;
  2. Select "Open in application" and click "Other";
  3. At the bottom of the window, you will find the "Enable" menu. Default, will be set to "Recommended Programs";
  4. Choose "All Programs" in this menu and search for Microsoft Outlook. Check the box next to "Always open in app" to make it the default program.

How to edit a OLK14PREF file?

To edit OLK14PREF files, it is essential to install software that supports not only viewing but also editing the settings files. Online OLK14PREF editors provide limited functionality compared to full-featured software for Outlook Preferences Format.

List of Top OLK14PREF editors 2026

Based on the criteria above, here is a selection of OLK14PREF editors you can use.

OLK14PREF Editor SoftwareDeveloperPlatformsOverall Rating
Microsoft OutlookMicrosoftWindows, Mac OS4.8 out of 5 (43 reviews)

Solve problems with OLK14PREF files

Rest assured, any issues with OLK14PREF files can typically be addressed with simple software adjustments. See the tips below for help.

Why does Microsoft Outlook stop responding or crash intermittently?

Microsoft Outlook crashes can be caused by outdated software. Keep your Microsoft products up to date by installing the latest updates.

Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.

What are the best practices for repairing a OLK14PREF file that has gone bad?

Use a data recovery program to open the damaged OLK14PREF file and from the menu choose "Repair" function to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged settings files.

What are the warning signs that my OLK14PREF file may be corrupted?

Common indications of damaged OLK14PREF settings files are:

  • Error messages appear during the course of working with the file;
  • Editing the archive in Microsoft Outlook results in slow or unresponsive behavior;
  • Opening the file results in an error or a failed attempt;
  • Unexpected expansion of the total size of the OLK14PREF file;
  • Opening the file in Microsoft Outlook or other programs causes them to hang or crash;