H__ File: What is it?

Written by:   |   Updated: November 26, 2018

Microsoft Silver

H__ File Summary

There is one file type associated with the H__ File Extension, the C++ Header File format. According to our database, three distinct software programs (conventionally, Microsoft Notepad developed by Microsoft Corporation) will enable you to view these files. These files can be categorized as Developer Files.

We have found H__ files on the Windows, Mac, and Linux operating systems. They are both mobile and desktop device friendly. The Popularity Rating for H__ files is "Low", which means these files are not ordinarily found on an everyday user's device.

Although there is a lot more to know about H__ files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Prevalence
7175
Position

/ 11690

Active

File Status

26

November

2018

Amended

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Kinds of H__ Files


Main H__ Affiliation

.H__
Formatting:.h__
Class:C++ Header File

C or C++ programming language header file, a source code file that include extra variables, constants, functions, or other data. These files can be viewed by any text editor.

Organization: Microsoft Corporation
Function:Developer Files
Entry: HKEY_CLASSES_ROOT\.h__

Software Programs That Open The C++ Header File:


Microsoft Notepad by Microsoft Corporation

Windows
Mac
Linux

MacroMates TextMate by MacroMates

Mac

Apple Xcode by Apple

Mac
iOS
OS X El Capitan

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H__ File Popularity


Browser Rankings

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


H__ Troubleshooting


Common H__ Opening Problems

Microsoft Notepad Removed

You encounter an error message such as "%%os%% Can't Open H__ Files" when trying to open your H__. When this happens, it is commonly due to Microsoft Notepad missing in %%os%%. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.


Tip: When another H__ application is installed, you can choose to open it by selecting "Show Apps" and using that program.


Wrong Version of Microsoft Notepad is Installed

It is possible that your version of Microsoft Notepad isn't able to open your C++ Header File file due to incompatibility. If you've got the wrong version of Microsoft Notepad installed, you'll need to install the correct version. This problem is predominately due to having a C++ Header File file version that was created by a newer version of Microsoft Notepad than what you have installed on your PC.


Tip: Investigate your H__ file by right-clicking and selecting "Properties" to find clues on what version you need.


Summary: Not having the right Microsoft Notepad version on your computer can cause problems opening H__ files.


Other Causes of H__ File Opening Problems

Errors opening C++ Header File files can still occur even with the latest Microsoft Notepad software installed on your computer. There can be other issues - unrelated to software - preventing you from opening H__ files. Other contributing causes:

  • H__ file type Registry entries are wrong
  • Deletion of the H__ file description from the Registry by mistake
  • Microsoft Notepad or another H__ application experienced a flawed installation
  • Your H__ can't be loaded properly (file corruption)
  • Your H__ is infected with malware
  • Hardware related to H__s has device driver corruption
  • Windows cannot load your C++ Header File file due to insufficient resources (eg. RAM)

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