HH File Description

Writer:   |   Updated: November 26, 2018

Microsoft Silver

HH File Summary

Four known software programs (notably, Microsoft Notepad developed by Microsoft Corporation) are related to the HH file extension. In addition, they are categorized under two distinct file types, but mainly identified as the C++ Header File format. HH files are categorized ordinarily as Developer Files. Other file types can be Audio Files.

We have found HH files on the Windows, Mac, and Linux operating systems. They are both mobile and desktop device friendly. These files have a Popularity Rating of "Low", meaning they are not very commonly observed on your average hard disk.

Although there is a lot more to know about HH 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
File Type Popularity
5768
Standing

/ 11690

Active

File Status

26

November

2018

Refreshed

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Known HH Files

  2 known file types use this extension

Principal HH Type

.HH
File Name:.hh
Category: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.

Developer: Microsoft Corporation
Function:Developer Files
Registry Key: HKEY_CLASSES_ROOT\.hh

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

Other HH File Associations

.HH
File Name:.hh
Category:HammerHead Drumloop File

Audio file created by HammerHead, a simple TR-909-like drum computer program aiming at the dance-scene.

Developer: Open Source
Function:Audio Files

Software Programs That Open HammerHead Drumloop File Files:


HammerHead Rhythm Station by Open Source

Compatible with:

Windows

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HH Popularity


Primary Browsers

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


Sources of HH Problems


Common Problems Opening HH Files

Microsoft Notepad Removed

If you attempt to load your HH file, you experience a message such as "Can't Open HH Files". Customarily, this means that Microsoft Notepad is not installed on %%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: If you have another software that you know opens HH files, you can select it by hitting the "Show Apps" button.


Microsoft Notepad Requires Update

Sometimes your installed version of Microsoft Notepad won't support your C++ Header File file. If you've got the wrong version of Microsoft Notepad installed, you'll need to install the correct version. This issue mainly occurs when your C++ Header File file was created by a newer version of Microsoft Notepad than you have on your PC.


Tip: If you right-click on your HH file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.


Conclusion: The majority of HH file opening issues are due to not having the correct Microsoft Notepad version installed.


Other HH File Opening Causes

Although you might already have Microsoft Notepad or another HH-associated software installed on your computer, you can still encounter problems opening C++ Header File files. There can be other issues - unrelated to software - preventing you from opening HH files. These other problems include (listed in order from most to least common):

  • File references in the Windows Registry for HH are wrong
  • Mistaken removal of the Windows registry HH description
  • Corrupt install of Microsoft Notepad or other HH-related program
  • The HH itself is corrupted
  • Your HH is infected with malware
  • Hardware related to HHs has device driver corruption
  • Your computer does not have the adequate system resources to open the C++ Header File format

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