Basic information about MQH file

When there is a problem with opening files with the file extension MQH（*.MQH or *.mqh）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the MQH file yourself.

There are 1 file types using the MQH file extension in our database. In the further part of this page, you will find detail information about all the MQH file with their brief description and a list of programs that support MQH file sorted by operating systems. The table below provides useful information about the MQH file extension. It answers questions such as:
  • What is the MQH file?
  • How to open a MQH file?
  • What programs do I need to open a MQH file?
  • What programs help to create and edit a MQH file?
  • How to convert MQH files to another file format?
  • How to convert another files to MQH file format?


1.Detail information about MQH file extension: MetaTrader Include File

File type MetaTrader Include File Category Developer Files
Developer MetaQuotes Software File format Text
Description MQH file is a MetaTrader Include File developed by MetaQuotes Software. An MQH file is an include file created by MetaTrader, an online trading platform. It contains definitions for common variables and functions that programmers can use for developing custom indicators, Expert Advisors, and scripts.
Software programs that will open, edit or convert MQH files

Windows		 MetaQuotes MetaTrader

macOS		 MetaQuotes MetaTrader

Linux		 MetaQuotes MetaTrader

Android		 MetaQuotes MetaTrader

iOS		 MetaQuotes MetaTrader



Can't open a MQH file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.MQH”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the MQH extension without any issue.


Where I can download the application that support MQH file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How 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.


Can I change the extension of MQH files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a MQH file?

The reasons for the lack of the ability to open a MQH file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a MQH file. If there is still something wrong, you might want to check:

  • Whether the MQH file is damaged.
  • Whether the MQH file is incorrectly linked in the registry entries.
  • Whether the MQH file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the MQH file format is incompletely.
  • Whether the MQH file is infected.
  • Whether the drivers of the equipment used for opening a MQH file are up to date.
  • Whether your computer has enough hardware resources to open a MQH file.

If the MQH file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.