OLK file icon

OLK File Extension

Outlook Address Book Format
  • Developer
    Microsoft
  • Category
  • Popularity
    4.4 (5 votes)

What is OLK file?

OLK is a file extension commonly associated with Outlook Address Book Format files. Outlook Address Book Format specification was created by Microsoft. Files with OLK extension may be used by programs distributed for Windows platform. Files with OLK extension are categorized as Data Files files. The Data Files subset comprises 1326 various file formats. The most popular program for handling OLK files is Microsoft Outlook, but users can choose among 2 different programs that support this file format. On the official website of Microsoft Corporation developer not only will you find detailed information about theMicrosoft Outlook software, but also about OLK and other supported file formats.

Programs which support OLK file extension

Programs that can handle OLK files are as follows. Files with OLK suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support OLK file

How to open file with OLK extension?

Being unable to open files with OLK extension can be have various origins. Fortunately, most common problems with OLK files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with OLK files.

Step 1. Install Microsoft Outlook software

Install software to open OLK file The most common reason for such problems is the lack of proper applications that supports OLK files installed on the system. The most obvious solution is to download and install Microsoft Outlook or one to the listed programs: Microsoft Word, Microsoft Office. Above you will find a complete listing of programs that support OLK files, classified according to system platforms for which they are available. If you want to download Microsoft Outlook installer in the most secured manner, we suggest you visit Microsoft Corporation website and download from their official repositories.

Step 2. Update Microsoft Outlook to the latest version

Update software that support file extension OLKYou still cannot access OLK files although Microsoft Outlook is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. The reason that Microsoft Outlook cannot handle files with OLK may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Microsoft Outlook.

Step 3. Assign Microsoft Outlook to OLK files

If the issue has not been solved in the previous step, you should associate OLK files with latest version of Microsoft Outlook you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with OLK file on Windows

Change the default application in Windows

  • Right-click the OLK file and choose Open with option
  • Select Choose another app → More apps
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where Microsoft Outlook is installed. Now all that is left is to confirm your choice by selecting Always use this app to open OLK files and clicking OK.
Associate software with OLK file on Mac

Change the default application in Mac OS

  • Right-click the OLK file and select Information
  • Find the Open with option – click the title if its hidden
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • If you followed the previous steps a message should appear: This change will be applied to all files with OLK extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the OLK file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the OLK file is valid. Problems with opening the file may arise due to various reasons.

Check OLK file for viruses
1. Check the OLK file for viruses or malware

If the OLK is indeed infected, it is possible that the malware is blocking it from opening. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the scanner detected that the OLK file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the OLK file’s structure is intact

If you obtained the problematic OLK file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. When downloading the file with OLK extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle Microsoft Outlook

If the systems has insufficient resources to open OLK files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with Outlook Address Book Format files and ensure security of your device and operating system. It may be the case that the OLK files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the OLK file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on OLK file.

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