Opening an HHC File

The HHC file type is primarily associated with HTML Help Workshop.

HHC	File extension: HHC
	File type:	plain text file

What is an HHC file?

HHC files mostly belong to HTML Help Workshop. HHC files are HTML Help Contents files used by Microsoft HTML Help Workshop.
They store the organized list of help topics that form the table of contents for compiled help systems such as .CHM files. The file is written in plain text using HTML markup, which means you can open it with any text editor to see or edit the code.
Key details compiled by FilExt.com include:

Purpose: It provides the navigation structure for help documents by listing topics and subtopics.

Format: The file is encoded in HTML or UTF-8 and employs standard HTML tags (like <li>) for list items.

Management: The file is primarily created and modified using Microsoft HTML Help Workshop. For additional resources, visit Microsoft's website.

How to open an HHC file

You need a suitable software like HTML Help Workshop to open an HHC file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your HHC file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HHC file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HHC Text Viewer

Choose your .hhc file to view

or drag and drop it here

Online File Viewer

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How to extract texts from HHC files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from HHC file or capture a screenshot, you can use our free Online HHC File Viewer:

To do this, click the button "Choose your .hhc file to view" on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert HHC files:

HTML Help Workshop
See the previous paragraphs to learn more about the main application. HHC files are often referred to as HTML Help Workshop simple text files because this type of file is primarily created or used by this software.
HTML Help (Table of Contents) by Microsoft Corporation
These files store the information needed for the contents pane and are in sitemap format. Program ID is Hhc.File Related links: Unofficial (Preliminary) HTML Help Specification
TurboTax (Contents File) by Intuit

HHC file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. Knowledge is power - this also applies when dealing with unknown or faulty files. Our analysis of the HHC files produces the following result:

HHC is seldom used as a file extension and predominantly uses a uniform format. However, the following two file formats are common:

75% of all HHC files use the popular HTML file format. HTML is short for HyperText Markup Language. It is the standard markup language for documents designed to be displayed in a web browser. The content consists of readable text data, which can be read using a text editor. The files are 2 KB to 590 KB in size, with a median of 47 KB. The file type was created 10 years ago, but is still used today. Several words can almost always be found in the files, e.g. <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">, <HTML>, <HEAD>, , <meta name="GENERATOR" content="Microsoft® HTML Help Workshop 4.1">, </HEAD><BODY> and <OBJECT type="text/site pr. The file name Table of Contents.hhc is typical for these files. These files can be linked to help and documents.

All the rest of the HHC files (25%) have different formats. These files sometimes refer to manual. Drag & drop your file here to see the file format and a preview of your HHC file!

Technical Data for HHC File Extension

File classification:

Simple text file

Program ID:

Hhc.File

Related files:

chm, hhp, hhk, htm, txt, hhs, html

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Hhc.File
EXEFile: %ProgramFiles%\HTML Help Workshop\hhw.exe %1

ProgramID: Hhc.File
EXEFile: D:\Help Tools\HTML Help Workshop\hhw.exe %1

ProgramID: Hhc.File
EXEFile: blank

ProgramID: hfile
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\IDE\devenv.exe /dde

Show all 4 listings To Top

an hhc plain text file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with HHC files

Associate the HHC file extension with the correct application.
Update your software that should actually open plain text files. Because only the current version supports the latest HHC file format. Search, therefore, e.g. on the manufacturer website after an available HTML Help Workshop update.
To make sure that your HHC file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .HHC file online - secure, fast, and no downloads needed.