Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .h

2 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .h file?
  • Which program can create the .h file?
  • Where can you find a description of the .h format?
  • What can convert .h files to a different format?
  • Which MIME-type is associated with the .h extension?
C  Header File .h file icon

C Header File

C language header file. Information that is needed by several different files or functions is collected into a header file. A header file contains C-language definitions and structures. Centralizing information into a header file facilitates the creation and update of programs.
Detailed description not available
Category: Development files
Application: -
Program name: -
Mime-type: text/plain
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
C Source Code
C++ Source Code
Visual C++ Dialog
Visual C++ Import Library
Microsoft Visual Studio Workspace Options
Visual C# .NET Class
Visual Studio Resource Script
Miranda IM SmileyAdd Plugin .h file icon

Miranda IM SmileyAdd Plugin

H file is a Miranda IM SmileyAdd Plugin. Miranda IM is an open source, multi-protocol instant messaging client.
Detailed description not available
Category: Data files
Application: Miranda IM
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
WinAMP Skin
GOM Player Skin
Maxthon 2 Browser Skin
Miranda IM Skin
WinAMP 3 Playlist
WinAMP 5 System Plugin
WinAMP Component Plugin
WinAMP Links
WinAMP Equalizer Presets

Other types of files may also use the .h file extension. If you have helpful information about .h extension, write to us!

Can't open a .h file?

If you want to open a .h file on your computer, you just need to have the appropriate program installed. If the .h association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.h

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android