MMX file format description

Many people share .mmx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .mmx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .mmx files.

2 filename extension(s) found in our database.

.mmx - Command and Conquer Map

The MMX game data files are related to Command & Conquer. The MMX file is a Command and Conquer Map. Command & Conquer is a video game franchise, mostly of the real-time strategy style as well as a first-person shooter game based on the former.

Command & Conquer
Game Data files
- / -
Command and Conquer Map related extensions:
Crazy Machines 2 Data
Train Simulator Environment Data
Descent 3 Mission Data
Fallout 4 Sceleton Data
Jedi Knight: Jedi Academy Saber Data
ZZT Game Data

.mmx - Oracle Forms Menu Module Executable

The MMX development files are related to Oracle Forms. The MMX file is an Oracle Forms Menu Module Executable. Oracle Forms is a software product for creating screens that interact with an Oracle database.

Oracle Forms
Development files
- / -
Oracle Forms Menu Module Executable related extensions:
SQL Developer Data Modeler Design
Oracle Forms Menu Module Text
Oracle Forms Form Module Binary
Nvidia Vertex Shader Profile
Portable Translation Memories
IPC Protocol Definition Language Document

Naturally, other applications may also use the .mmx file extension. Even harmful programs can create .mmx files. Be especially cautious with .mmx files coming from an unknown source!

Can't open a .mmx file?

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

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .mmx file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

hmx, jmx, kmx, lmx, mhx, mjx, mkx, mlx, mm, mma, mmc, mmd, mms, mmz, mnx

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Starcraft Saved Game
Media Processing Server Audio Data
Nokia Landmark Exchange File
Meshlab Filter Script
Mangodata Database
MakeHuman eXchange Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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