File extension .CNT
Full Name | Developer | Category |
---|---|---|
Help Contents Format | Microsoft | System Files |
The CNT (Help Contents File) file extension is most commonly associated with the HLP files in Microsoft Windows® operating systems. It is an index file which contains the structure to provide users with organized access over help indexes, nested within the Microsoft help contents tree. These help contents may include topics, reference guides and tutorials for understanding software applications and related Microsoft systems. The content of the CNT files are stored within the HLP files using a binary format. This content is linked together by fields like full-text concordance for Windows applications.
Getting Started
CNT files can be opened with certain development tools like Microsoft Visual Studio. While there appear to be other programs that can open the CNT extension, these may be limited in their capabilities. For additional help, it is advised to consult documentation provided with the program or contact the developer. Having said that, some infrequently used file extensions can also select Notepad, WordPad, and even other text editors for opening and viewing these files. In an unfortunate event where this text file is mistakenly deleted or corrupted, other helpful related files can include the .GID, .HHK, and .HHP extensions.
Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .CNT) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .CNT extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .CNT file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .CNT extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .CNT extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .CNT file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .CNT file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .CNT file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .CNT file) will be extended to the maximum.
It is also good to check
- if the .CNT file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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