.CFG File Extension

File Type 1

Configuration File

Developer N/A
Popularity
4.2  |  908 Votes
Category Settings Files
Format Text

What is a CFG file?

A CFG file is a generic preference file that stores settings and configuration information. It is used by various programs, which means different CFG files may store data in different formats. CFG files typically should not be opened manually but may be saved in a text format that can be viewed in a text editor.

More Information

Generic configuration files are often named "config.cfg". Text-based CFG files often contain one variable and value per line in the following format:

var1=low
var2=med
var3=high

To test if a program automatically generates a default CFG file, move the configuration file out of the default directory when the program is not running. Then open the program and check the directory to see if a new CFG file has been created. Also, a CFG file can sometimes be moved or deleted to revert to a program's default settings.

NOTE: Linux configuration files typically use the .CONF extension rather than CFG.

Open and view .CFG files with File Viewer Plus.Free Download

Programs that open CFG files

Windows
Included with OS
Included with OS
Mac
Included with OS
Free
Updated August 24, 2016
File Type 2

Celestia Configuration File

Developer Celestia Development Team
Popularity
4.2  |  588 Votes
Category Settings Files
Format Text

What is a CFG file?

Settings file used by Celestia, a 3D universe simulation program; saved in a plain text format and specifies the data files to load when the program is started; can be edited by the user, but should be done so carefully since improper changes to the file can cause Celestia's loading process to fail.

More Information

Celestia configuration files contain references to .STC, .SSC, .DSC data files, .CEL scripts, .TXF font definitions, and other startup parameters.

Programs that open or reference CFG files

Windows
Mac
Linux
Updated July 1, 2011
File Type 3

Cal3D Model Configuration File

Developer Cal3D
Popularity
4.2  |  135 Votes
Category 3D Image Files
Format Text

What is a CFG file?

Three-dimensional model configuration file used by Cal3D, an open source character animation toolkit; saved in a plain text format and contains references to model components; used for putting all model components together.

More Information

CFG files contain references to Cal3D skeleton files (.CSF or .XSF extension), animation files (.CAF or .XAF extension), meshes (.CMF or .XMF files), and materials (.CRF or .XRF files). They also store the root directory for the referenced files and the model scale.

Programs that open CFG files

Windows
Included with OS
Mac
Included with OS
Linux
Free
Updated July 6, 2017
File Type 4

MAME Configuration File

Developer The MAME Team
Popularity
4.2  |  103 Votes
Category Settings Files
Format XML

What is a CFG file?

XML keyboard configuration file used by MAME arcade video game emulators; contains keyboard mappings and hotkeys used for playing a game; used for configuring keyboard controls based on the player's preferences.

More Information

Separate CFG files can be saved for different games. This gives players the ability to customize controls separately depending on the game being played.

Programs that open or reference CFG files

Windows
Free
Free Trial
Mac
Updated November 16, 2010
File Type 5

LightWave Configuration File

Developer NewTek
Popularity
4.0  |  99 Votes
Category Settings Files
Format N/A

What is a CFG file?

Preferences file created by LightWave 3D, a modeling and rendering application for still frames and animation sequences; saves various application configuration options; used for remembering presets for the user.

Programs that open or reference CFG files

Windows
Mac
Updated May 17, 2011
File Type 6

Citrix Server Connection File

Developer Citrix Systems
Popularity
4.2  |  59 Votes
Category Settings Files
Format N/A

What is a CFG file?

Contains connection information for connecting to a Citrix server; may include hostname, IP address, server port, username, password, etc; multiple CFG files may be used by Citrix client software to connect to various servers.

Programs that open or reference CFG files

Windows
Citrix Access Client
Mac
Citrix Access Client
Linux
Citrix Access Client
Updated April 30, 2007
File Type 7

Wesnoth Markup Language File

Developer The Battle for Wesnoth
Popularity
4.1  |  65 Votes
Category Game Files
Format Text

What is a CFG file?

Game file used by The Battle for Wesnoth, a free turn-based strategy game for Mac, Windows, and Linux; contains source code written in the Wesnoth Markup Language (WML), a proprietary language used for creating scenarios, campaigns, units, and other game content for The Battle for Wesnoth.

More Information

CFG files can be edited using any text editor. Some WML syntax highlighting plugins have been developed for text editors such as Emacs and Vi.

Programs that open or reference CFG files

Windows
Updated March 22, 2011
File Type 8

M.U.G.E.N Configuration File

Developer Elecbyte
Popularity
4.0  |  3 Votes
Category Game Files
Format Text

What is a CFG file?

A CFG file is a configuration file used by M.U.G.E.N, a free sprite-based game engine used to create 2D fighting games. It contains settings that control a fighting game's gameplay, sounds, and appearance. CFG files used with M.U.G.E.N are typically named mugen.cfg.

More Information
Screenshot of a .cfg file in Microsoft Notepad
CFG file open in Microsoft Notepad

A M.U.G.E.N CFG file allows fighting game creators to modify their game's basic rules, including round time, game difficulty, game speed, combo damage multipliers, and more. It also allows creators to choose what resolution M.U.G.E.N shows their game at, as well as whether M.U.G.E.N should play sound effects and music. Advanced M.U.G.E.N users can customize a number of additional game-related settings using a CFG file.

M.U.G.E.N's default CFG file, mugen.cfg, is stored in the program's data folder. While you can edit game settings directly within mugen.cfg, it's recommended that you create a copy of the file before editing it, so you can easily revert M.U.G.E.N to its original settings if necessary.

Common CFG Filenames

mugen.cfg - The default configuration file included with M.U.G.E.N. It is located in the program's data folder.

How to open a CFG file

Because they are plain text documents, you can open mugen.cfg or any other M.U.G.E.N CFG file with any text editor. In Windows, you can open a CFG file with Microsoft Notepad or Microsoft WordPad. In macOS, you can use Apple TextEdit.

Programs that open or reference CFG files

Mac
Linux
Updated August 20, 2020

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