NULL File Extension

What is NULL file?

Files with .NULL extension can contain images in NULL Image format. Some Windows programs also use this extension for empty or corrupted/damaged files. Files with .NULL extension can also be used by ransomware for encrypted files or for any other files on the computer.

Support for NULL Image Format files

If a .NULL cannot be opened by an image viewer, user can try to check its contents in Notepad, which opens simple TXT files. After opening given .NULL file suing Notepad user can inspect its header section, which may contain useful information pertaining to the file contents.

Programs which support NULL file extension

Below is a table that list programs that support NULL files. Files with NULL suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Updated: 04/27/2023

How to open file with NULL extension?

Problems with accessing NULL may be due to various reasons. What is important, all common issues related to files with NULL extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install FileAlyzer software

Problems with opening and working with NULL files are most probably having to do with no proper software compatible with NULL files being present on your machine. The solution is straightforward, just download and install FileAlyzer. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. If you want to download FileAlyzer installer in the most secured manner, we suggest you visit Safer-Networking Ltd. website and download from their official repositories.

Step 2. Check the version of FileAlyzer and update if needed

If the problems with opening NULL files still occur even after installing FileAlyzer, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of FileAlyzer is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why NULL files are not compatible with FileAlyzer. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using FileAlyzer.

Step 3. Associate NULL Image Format files with FileAlyzer

If you have the latest version of FileAlyzer installed and the problem persists, select it as the default program to be used to manage NULL 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

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the NULL file
• Next, select the Choose another app option and then using More apps open the list of available applications
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the FileAlyzer installation folder. Confirm by checking Always use this app to open NULL files box and clicking OK button.

The procedure to change the default program in Mac OS

• From the drop-down menu, accessed by clicking the file with NULL extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with NULL extension. By clicking Continue you confirm your selection.

Step 4. Verify that the NULL is not faulty

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 NULL file. Problems with opening the file may arise due to various reasons.

1. The NULL 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 NULL file hinders attempts to open it. 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 NULL file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

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

If you obtained the problematic NULL file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with NULL extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

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. Check whether your system can handle FileAlyzer

The operating systems may note enough free resources to run the application that support NULL files. Close all running programs and try opening the NULL file.

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

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

Do you want to help?

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