.NDB File Extension

File Type:
ClamAV Extended Signature File

Having trouble opening .ndb extension? Don't panic! This page explains what ndb files are as well as suggests programs you may use to open ndb files. You can download these programs through this page.

What is a NDB file?

Ndb file extension has ClamAV Extended Signature file type, developed by Sourcefire, which is associated with the "data files" category.

ClamAV is an open source antivirus. It uses files with this extension to do its job as they contain signatures for malware programs. NDB files are needed for custom signatures that help with virus recognition and malware detection. They extend virus descriptions in .CVD files.

To learn how you can open the given file, read the information below.

ndb file icon
File Type:
ClamAV Extended Signature File
Data Files

How to open NDB file?

Double click the ndb file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .ndb extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the ndb extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the ndb file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open NDB files

  • Windows Windows
  • MacOS MacOS
    • ClamXav ClamXav
  • Linux Linux
    • Sourcefire ClamAV Sourcefire ClamAV

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the ndb file as well. Download Universal File Viewer for your OS.

Download for Win
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Download for Mac
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