alphabetical list of extensions

File extension .H

File description

There are some programming languages (C, C++, Objective-C) that adapt header files. Header files permit programmers to isolate certain components of a program’s source code into reusable files. Header files consist of subroutines, variables, identifiers and declarations of classes. Programmers who wants to declare standardized identifiers in not only one source file can put such identifiers in a single header file that other code can imply whenever the header contents are claimed. The aim of this is to provide the interface in the header isolated from the implementation.

There are some new languages such as Java that do not use forward declarations. Identifiers are identified automatically from source files and read from dynamic library symbols.

Description of the problem

If you have on your computer a .H file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .H extension. Directly on this website you can find a solution of the most common problem with the .H file – that you do not have on your computer the appropriate program to open the file.

Solution

From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .H file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.

Category

Developer Files

Developer

N/A

Popularity

File name: C/C++/Objective-C Header File

Programs that will open this file:

Windows

Adobe Dreamweaver

Adobe ExtendScript

Apache http server

Borland C++

C++ Builder

CodeWarrior Development Studio

Dev-C++

Eclipse IDE

gVim

Microsoft Visual Studio

Microsoft Windows NotePad

NotePad++

PSPad

Text editor

Vim

Visual Studio

Mac OS

Apple Xcode

Eclipse IDE

MacVim

Text editor

TextEdit

TextMate

Xcode

Linux

Eclipse IDE

gedit

GNU Emacs

Text editor

Remember!

The .H file extension can correspond to several not related file formats. If there is more than one file format with the .H extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .H file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .H file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .H file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .H file, so download the update and check again.

2. Incorrect .H file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

Right-click the .H file
Go to the "Open with" - then "Choose default program ..."
Locate the appropriate application
Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.