.CNT File Extension

File Type:
Help Contents File

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

What is a CNT file?

Cnt file extension has Help Contents file type, developed by Microsoft, which is associated with the "system files" category.

These are help files for Windows applications that can be used by Windows OS itself as well. They store .HLP files saved in the plain text format. You can create CNT files using Microsoft Help Workshop, which is an older utility for creating help and support documentation. It is also possible to update old documents to the newer .HHC format with the help of HTML Help Workshop. You should not open unknown files with the .CNT extension – there is a security problem yet to be patched, which allows malicious code to infect your computer using a buffer overflow condition.  

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

cnt file icon
File Type:
Help Contents File
System Files

How to open CNT file?

Double click the cnt 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 .cnt 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 cnt 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 cnt 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 CNT files

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 cnt file as well. Download Universal File Viewer for your OS.

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