.CHM File

File extension chm is used for Microsoft compiled HTML help files. CHM  is acronym for Compiled Help Modules. This format is used in Microsoft HTML Help, the standard help system for the Windows platform.

The chm file represents a collection of HTML documents and other data such as images and JavaScript compressed into a single file.

These chm files contain a number of powerful features present in the specifications available here including: Table of Contents, Index of keywords and Full-text search functionality.

Files with chm extension are mainly related to Microsoft compiled HTML help file format. CHM is acronym for Compiled Help Modules.

How to open:

You can open *.chm file with Microsoft Windows Help viewer included in Windows system.

How to convert:

Some tools are able to export data from *.chm files.