NDB File Extension

What is NDB file?

NDB filename suffix is mostly used for ClamAV Extended Signature Format files. ClamAV Extended Signature Format format was developed by Sourcefire. NDB files are supported by software applications available for devices running Linux, Mac OS, Windows. NDB file format, along with 1326 other file formats, belongs to the Data Files category. ClamWin supports NDB files and is the most frequently used program to handle such files, yet 2 other tools may also be used.

Programs which support NDB file extension

Below you will find an index of software programs that can be used to open NDB files divided into 3 categories according to system platform supported. NDB files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with NDB extension?

Problems with accessing NDB may be due to various reasons. On the bright side, the most encountered issues pertaining to ClamAV Extended Signature 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 NDB files.

Step 1. Get the ClamWin

Problems with opening and working with NDB files are most probably having to do with no proper software compatible with NDB files being present on your machine. The most obvious solution is to download and install ClamWin or one to the listed programs: ClamXav, ClamAV. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading ClamWin installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Verify the you have the latest version of ClamWin

If the problems with opening NDB files still occur even after installing ClamWin, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of ClamWin is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that ClamWin cannot handle files with NDB may be that the software is outdated.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 ClamWin.

Step 3. Assign ClamWin to NDB files

If you have the latest version of ClamWin installed and the problem persists, select it as the default program to be used to manage NDB on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

The procedure to change the default program in Windows

• Right-click the NDB file and choose Open with option
• Click Choose another app and then select More apps option
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the ClamWin installation folder. Confirm by checking Always use this app to open NDB files box and clicking OK button.

The procedure to change the default program in Mac OS

• By clicking right mouse button on the selected NDB file open the file menu and choose 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 NDB extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the NDB 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 NDB file. Problems with opening the file may arise due to various reasons.

1. The NDB may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the NDB is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the NDB file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

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

If the NDB file was sent to you by someone else, ask this person to resend the file to you. 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. It could happen the the download process of file with NDB 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

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the ClamAV Extended Signature Format file.

4. Verify that your device fulfills the requirements to be able to open ClamWin

If the system is under havy load, it may not be able to handle the program that you use to open files with NDB extension. In this case close the other applications.

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

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with ClamAV Extended Signature Format file. It is possible that one of the available system or driver updates may solve the problems with NDB files affecting older versions of given software.

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