NDF File Extension

NDF file icon
SQL Server Secondary Database Format
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What is NDF file?

Full format name of files that use NDF extension is SQL Server Secondary Database Format. SQL Server Secondary Database Format specification was created by Microsoft. NDF files are supported by software applications available for devices running Windows. NDF file belongs to the Database Files category just like 348 other filename extensions listed in our database. Microsoft SQL Server is by far the most used program for working with NDF files. Software named Microsoft SQL Server was created by Microsoft Corporation. In order to find more detailed information on the software and NDF files, check the developer’s official website.

Programs which support NDF file extension

Below is a table that list programs that support NDF files. NDF files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support NDF file

How to open file with NDF extension?

Problems with accessing NDF may be due to various reasons. On the bright side, the most encountered issues pertaining to SQL Server Secondary Database Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with NDF files.

Step 1. Install Microsoft SQL Server software

Problems with opening and working with NDF files are most probably having to do with no proper software compatible with NDF files being present on your machine. The solution is straightforward, just download and install Microsoft SQL Server. The full list of programs grouped by operating systems can be found above. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Microsoft SQL Server website and download the installer.

Step 2. Check the version of Microsoft SQL Server and update if needed

If you already have Microsoft SQL Server installed on your systems and NDF files are still not opened properly, check if you have the latest version of the software. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Microsoft SQL Server cannot handle files with NDF may be that the software is outdated. The latest version of Microsoft SQL Server should support all file formats that where compatible with older versions of the software.

Step 3. Assign Microsoft SQL Server to NDF files

If you have the latest version of Microsoft SQL Server installed and the problem persists, select it as the default program to be used to manage NDF on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

The procedure to change the default program in Windows

  • Clicking the NDF with right mouse button will bring a menu from which you should select the Open with option
  • Click Choose another app and then select More apps option
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where Microsoft SQL Server is installed. Now all that is left is to confirm your choice by selecting Always use this app to open NDF files and clicking OK.

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected NDF file open the file menu and choose Information
  • Open the Open with section by clicking its name
  • Select Microsoft SQL Server and click Change for all...
  • Finally, a This change will be applied to all files with NDF extension message should pop-up. Click Continue button in order to confirm your choice.

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

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the NDF file in question. Being unable to access the file can be related to various issues.

1. Verify that the NDF in question is not infected with a computer virus

If the NDF is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. NDF file is infected with malware? Follow the steps suggested by your antivirus software.

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

If the NDF file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the NDF file has been downloaded from the internet only partially, try to redownload it.

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

Sometimes in order to access files user need to have administrative 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 SQL Server

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

5. Ensure that you have the latest drivers and system updates and patches installed

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with SQL Server Secondary Database Format files. It may be the case that the NDF files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the NDF 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 NDF file.

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