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.HH File Extension

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File TypeC++ Header File

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Rare Uncommon Average Common Very Common
CategoryDeveloper Files


This file is saved in a plain text format. You can open and view the contents of this file using a text editor.


Contains header information referenced by a C++ source code file; may include extra variables, constants, functions, or other data used by the C++ program; typically referenced at the beginning of the source code.

Programs that open HH files
Microsoft Visual Studio 2015
Embarcadero Technologies C++ Builder
Any text editor
Apple Xcode
MacroMates TextMate
Freescale CodeWarrior Development Tools
Any text editor
Updated 8/24/2015

FileInfo - The File Extensions Database

This page contains information about the .HH extension and its known file associations. Our goal is to help you understand what an HH file is and how to open it.

The C++ Header file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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