MetaEditor Help

Structure of Catalogs

Structure of Catalogs

All data that refers to programming in the MQL5/MQL4 language at the MetaEditor environment is located in /MQL5 (or /MQL4) folder of the client terminal. You can quickly open it by pressing the "Open Data Folder Open Data Folder" in the "File" menu. Depending on the mode of MetaEditor start, the main or guest one, the variable data can be stored at different locations on the computer.

/MQL5 (/MQL4) folder contains subfolders that divide the resources that are used during programming according to their types:

Files and Folders

Description

/Experts

The folder where compiled (*.ex5, *.ex4) and source code (*.mq5, *.mqh, *.mq4) files of Expert Advisors are stored.

/Files

The folder where different files used by Expert Advisors and scripts are stored.

/Images

The folder where images in the *.bmp format used by programs are stored.

/Include

The folder where shared files *.mqh included in different programs are stored.

/Indicators

The folder where compiled and source code files of custom indicators are stored.

/Libraries

The folder for storing the MQL5/MQL4 libraries.

/Logs

Contains files of Expert Advisor journal (yyyymmdd.log). Such files are created for each working day separately, their names correspond to the date of their creation: yyyy — year, mm — month, dd — day.

/Presets

This folder contains the sets of parameters for launching Expert Advisors (input parameters).

/Scripts

The folder where compiled and source code files of scripts are stored.

experts.dat

It contains the database of Expert Advisors.

When creating a program by template using the MQL4/MQL5 Wizard the files are automatically placed to the necessary folders depending on their type.