What is it, how to open a CHW file and what is it for? Step by step

You came across a CHW file and you don't know how to open it? It is a file used frequently by applications, but little known. Read on to find out what it's for.

What is a CHW file?

CHW are an index file that contains information for various CHM files. They are files that are not compressed, so they usually have a lot of memory weight.

What is it, how to open a CHW file and what is it for? Step by step

CHM files are nothing more than papers di help used by various programs to archive documentation of their use and operation. It may include instructions for use, the definition of the functions it contains, or a series of questions and answers.




CHMs are saved in a file in HTML format because it includes multimedia information such as images, audio, text and hyperlinks. The advantage of this format is that it can be opened with any browser.

Files with the CHW extension they cannot be converted directly. By opening the file and accessing the CHM files they can be edited in other text formats such as PDF, TXT or EPUB.

How to open a CHW file

If you are an application developer, you are interested in how this type of file works and how to open it. The most commonly used application to open a CHW is FAR HTML.

You can download it directly from its website to download and enjoy one free version. It is a lightweight application with a simple interface.

To open a document file, run the application on your PC. Click on the menu option Creation / Help in File Explorer (Ctrl + Alt + X).



What is it, how to open a CHW file and what is it for? Step by step

Now, if you want to access CHM files, you can use any browser to access the content. It also uses tools like Notepad, although it shows it to you in a limited way.


Notepad ++ version can be used for open the CHW file. Show content as plain text, but can be limiting if it also contains image, audio, or document files.

I can't open the CHW file

Application errors

If for some reason you can't open the file when you double-click it, change the default application to open it. Right-click on the file and choose the Open with option.

In case you are using FAR HTML, check that the application has been installed correctly. In case an error is generated, retry the installation.

Damaged file

A possible error in uploading or downloading the file could cause data loss in the process. In such cases, it is best to download the file again and try to open it again.


Virus in the system

Malware e viruses can affect operation PC applications and file integrity. Perform a thorough analysis for potential threats.


Use an antivirus updated. If not, you can remove the threat without using an application.

Hardware problems

The main hardware problems that usually affect the normal functioning of applications are the driver updates e the disk or memory errors.


If you've done a recent driver update, roll back the driver version that worked for you. If not, it is out of date, go to the hardware page to download the latest version.

It also performs a disk and memory scan for check that they do not contain errors. If everything works fine, the problem is probably the.

File extension

It's possible confuse the format of one file with another, especially those very similar extensions. Check the extension name and if it is spelled correctly.

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