NK2 file icon

NK2 File Extension

Outlook 2002 Nickname Format
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What is NK2 file?

NK2 is a file extension commonly associated with Outlook 2002 Nickname Format files. Microsoft defined the Outlook 2002 Nickname Format format standard. NK2 file format is compatible with software that can be installed on Windows system platform. Files with NK2 extension are categorized as Misc Files files. The Misc Files subset comprises 6033 various file formats. The most popular program for handling NK2 files is Microsoft Outlook, but users can choose among 1 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 NK2 and other supported file formats.

Programs which support NK2 file extension

Programs that can handle NK2 files are as follows. Files with NK2 extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support NK2 file

How to open file with NK2 extension?

There can be multiple causes why you have problems with opening NK2 files on given system. On the bright side, the most encountered issues pertaining to Outlook 2002 Nickname Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the Microsoft Outlook

Install software to open NK2 file The main and most frequent cause precluding users form opening NK2 files is that no program that can handle NK2 files is installed on user’s system. The most obvious solution is to download and install Microsoft Outlook or one to the listed programs: Microsoft Office. The full list of programs grouped by operating systems can be found above. 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 NK2If the problems with opening NK2 files still occur even after installing Microsoft Outlook, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Microsoft Outlook is available. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why NK2 files are not compatible with Microsoft Outlook. The latest version of Microsoft Outlook should support all file formats that where compatible with older versions of the software.

Step 3. Associate Outlook 2002 Nickname Format files with Microsoft Outlook

If the issue has not been solved in the previous step, you should associate NK2 files with latest version of Microsoft Outlook you have installed on your device. The method is quite simple and varies little across operating systems.

Associate software with NK2 file on Windows

The procedure to change the default program in Windows

  • Clicking the NK2 with right mouse button will bring a menu from which you should select the Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • 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 NK2 files and clicking OK.
Associate software with NK2 file on Mac

The procedure to change the default program in Mac OS

  • From the drop-down menu, accessed by clicking the file with NK2 extension, select Information
  • Find the Open with option – click the title if its hidden
  • Select the appropriate software and save your settings by clicking Change all
  • Finally, a This change will be applied to all files with NK2 extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the NK2 for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper NK2 file. Being unable to access the file can be related to various issues.

Check NK2 file for viruses
1. The NK2 may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the NK2 file hinders attempts to open it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the NK2 file is indeed infected follow the instructions below.

2. Ensure the file with NK2 extension is complete and error-free

Did you receive the NK2 file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with NK2 extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

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. Make sure that the system has sufficient resources to run Microsoft Outlook

If the systems has insufficient resources to open NK2 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 2002 Nickname Format files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with NK2 files affecting older versions of given software.

Do you want to help?

If you have additional information about the NK2 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 NK2 file.

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