Opening an HH File

The HH file type is primarily associated with Visual Studio.

HH	File extension: HH
	File type:	header

What is an HH file

HH files mostly belong to Visual Studio by Microsoft. HH is the filename extension of a header file containing macros and the declaration of variables, functions, and classes to be used across multiple modules in a C++ project. A header file can be imported into a CC or CPP file using the #include directive. Most C, C++, and Objective-C projects use H files to store headers. However, some developers and compilers use HH files to differentiate the filename extension of C and C++ headers. Another type of HH file contains a help topic map which is automatically generated by RoboHelp documentation authoring software when creating a help document.

How to open HH files

You need a suitable software like Visual Studio to open an HH 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 HH file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HH file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HH Text Viewer

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Online File Viewer

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Programs that open and convert HH files:

Visual Studio by Microsoft
See the previous paragraphs to learn more about the main application. HH files are often referred to as Visual Studio developers because this type of file is primarily created or used by this software.
HammerHead (drum loop) by Three Chords
HammerHead is a digital audio workstation for creating drum samples. Drum loops created with HammerHead are saved in HH files. This file format is classified as Audio.
RoboHelp (help topic map) by Adobe
RoboHelp is a program for authoring help documents and knowledgebases using various document formats including CHM, PDF, and HTML. The HH file generated by RoboHelp contains a topic map for creating a help document. This file format is classified as Data.

Technical Data for HH File Extension

File classification:

Developer

Related files:

cc, h, hpp, tlh, config

Mime type:

text/x-c++hdr, text/x-c++src, application/x-httpd-php

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: Photoshop.SHHFile.8
EXEFile: %ProgramFiles%\Adobe\Photoshop CS\Photoshop.exe %1

ProgramID: CodeBlocks.hh
EXEFile: %ProgramFiles%\CodeBlocks\codeblocks.exe %1

an hh header is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with HH files

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