All about MDX Files

The MDX file type is primarily associated with Daemon Tools.

MDX	File extension: MDX
	File type:	disc data and volume formatting metadata file

What is an MDX file

MDX files mostly belong to Daemon Tools by Disc Soft. MDX stands for Media Data eXtended file. The MDX file format is used to store extended media descriptor information creating by DT Soft's DAEMON Tools software.

Main Use: DAEMON Tools is a virtual drive and optical disc authorization software that can be installed on Windows PCs and Macs. MDX files are present in the CD/DVD disc image files created by this software. The collective information concerning the disc formatting present in MDS and MDF files can be embedded in a single MDX file.
Other Uses: MDX files are also used by the real-time strategy video game Warcraft III. Warcraft III uses MDX files to store 3D game modeling data containing textures and meshes that make up the skeletal framework for units or buildings. Besides saving the default 3D models, MDX files can also be used in the customization of existing 3D models and the creation of new ones using editors such as MDX Squisher for Windows. MDX file format can also be used by database software such as dBase IV or Borland InterBase to store multiple index file data. The MDX files are generally accompanied by a DBF database file of the same name and contain the data needed to read the DBF database file.

How to open an MDX file

You need a suitable software like Daemon Tools to open an MDX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MDX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MDX file directly in the browser:. Just drag the file onto this browser window and drop it.

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Programs that open and convert MDX files:

Daemon Tools by Disc Soft
See the previous paragraphs to learn more about the main application. MDX files are often referred to as Daemon Tools disk images because this type of file is primarily created or used by this software.
Astroburn (disc data and volume formatting metadata file) by Disc Soft
Disc Soft Astroburn is a CD/DVD/Blu-Ray/HD-DVD media burning and mastering tool. It supports all types of optical storage media. The MDX (Media Data eXtended format) is a Disc Soft proprietary format and stores the disc data and volume formatting metadata. This file format is classified as Disk Image. Related links: FAQ, Astroburn on Wikipedia
Borland Database Engine (index file) by Micro Focus
Borland Database Engine is a Windows-based core database engine and connectivity program that supports Borland Delphi, C++ builder, IntraBuilder, Paradox for Windows, and Visual dBASE for Windows. It defines a library of API calls that can create, restructure, fetch data from, update, and otherwise manipulate local and remote database servers. This file format is classified as Data. Related links: Borland Database Engine on Wikipedia
dBASE (multiple index file) by dBASE
dBase represents one of the first database management systems for microcomputers, and it consists of the core database engine, a query system, a forms engine, and a programming language. It is deployed for creating various applications including - web applications hosted on a Windows server, Windows-rich client applications, and middleware applications. MDX file is usually paired with a DBF file of the same name. This file format is classified as Data. Related links: File Structure, Support, dBase on Wikipedia
Label Pro (re-index file) by Avery
Marketed by Avery Dennison Corporation, the Avery Label Pro software solution is developed for printing on label templates. It was produced back in the early 1990s but later rebranded in the late 1990s as Avery Design Pro and then replaced by an online and desktop application called Avery Design & Print. This file format is classified as Data. Related links: Avery Label Pro on Wikipedia, Suuport and FAQ, User Guide, Getting started
MDict (dictionary file) by Octopus Studio
MDict is a multi-language dictionary software for Windows and mobile platforms, and it does not have its own dictionary data - but uses libraries from other dictionaries. It works under the Microsoft Windows, Apple iOS, and Windows Phone operating systems. MDX file provides users the ability to create and use custom dictionaries. This file format is classified as Data. Related links: Tutorial, FAQ, Contact
Rational ROSE XDE (model file) by IBM
IBM Rational ROSE XDE (Rational Object-Oriented Software Engineering and eXtended Development Environment) is a development environment that serves for the development of object-oriented software with its suite of visual modeling tools. Rational Rose XDE is now a legacy suite, superseded by Rational Software Architect and Rational Data Architect. This file format is classified as Data. Related links: Rational ROSE XDE on Wikipedia
SQL Server (database index file) by Microsoft
Microsoft SQL Server is a comprehensive suite of relational database applications and tools that provides reliable management of mission-critical data and confidently runs increasingly complex business applications. It supports various business intelligence operations, analytics operations, and data processing. This file format is classified as Data. Related links: Guides, Tutorials, SQL Server on Wikipedia
Warcraft III (3 D game model file) by Blizzard
Warcraft III is a computer fantasy real-time strategy game - developed and published by Blizzard Entertainment in July 2002. This is a game where players build and develop their bases and control units and battles in the fictional world of Azeroth. The MDX file contains 3D game models, meshes, and textures - needed for units and buildings. The game is using this file for storing pre-fabricated 3D models or for customizing 3D models using editors. This file format is classified as Graphics. Related links: Beginners Guide, Support, World Editor Tutorials, Warcraft III on Wikipedia

MDX file format:

If you know the file format, you can also find out how to open or edit the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our examination of the MDX files comes to the following conclusion:

The MDX file extension is used very often and covers different formats for different programs. But the following two file formats are common:

50% of all MDX files have the same signature MEDIA DESCRIPTOR. These are binary files, so they do not contain words or text. Most of these files are 160 MB to 6 GB in size. The file type was developed only in the last few years. The following keywords are characteristic: MEDIA DESCRIPTOR, (C) 2000-2011 DT Soft Ltd and Disc. The file name Tomb Raider.mdx is characteristic of these files. Files like these are sometimes connected to oxford, atpl, raider, tomb, project, preparation, frenglish, builder and exam.
10% of all MDX files are MDict dictionary files. The contents of these files cannot be read by a human; only a computer program can interpret the data. A typical file size is 10 MB. Several words can almost always be found in the files, e.g. <Dictionary GeneratedByEngineVersion="2.0" RequiredEngineVersion="2.0" Format="Html" KeyCaseSensit. Such files sometimes refer to dictionary, english, advanced, persian and ldoce.

All the rest of the MDX files (40%) have different formats, frequently e.g. Blizzard 3D Model. Sometimes used for electrics, flight, repack, tutor, interaktive, tafelbilder, beginner, headway, makifes, panda or akai. Drag & drop your file here to see the file format and a preview of your MDX file!

Technical Data for MDX File Extension

File classification:

Disk Image

Related files:

dmx, mdt, mdd, cbt, dbf, dbt, mdz, tmdx, mxd, mdk, mds, msx, rar, zip, drv, s7p, iso, mdl, exe, dbo

Mime type:

application/octet-stream, text/x-gfm

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: MusicDirector.File
EXEFile: %ProgramFiles%\eJay\MusicDirectorGold\musicdirector.exe

ProgramID: Magos.War3ModelEditor.mdx
EXEFile: %ProgramFiles%\WoW Extracted Models\War3ModelEditor\War3ModelEditor\War3ModelEditor.exe

ProgramID: sqlwb.mdx.9.0
EXEFile: %ProgramFiles%\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\sqlwb.exe

ProgramID: SOURCENEXT.Keikai.Files.MemDial
EXEFile: %ProgramFiles%\SOURCENEXT\Keikai15\keikai.exe

Show all 4 listings To Top

an mdx disc data and volume formatting metadata file is a special file format by Disc Soft and should only be edited and saved with the appropriate software.

How to solve problems with MDX files

Associate the MDX file extension with the correct application.
Update your software that should actually open disc data and volume formatting metadata files. Because only the current version supports the latest MDX file format. Search, therefore, e.g. on the Disc Soft manufacturer website after an available Daemon Tools update.
To make sure that your MDX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MDX file online - secure, fast, and no downloads needed.