File Extension Library

.M3 File Extension

  • Developer by: Blizzard Entertainment
  • Category: 3D Image Files
  • Format: Binary

What is an .M3 file?

.M3 file extension is created by Blizzard Entertainment. .M3 has been classified as 3D Image Files. The format of .M3 file is Binary.

.M3 is Blizzard MDX3 Model File

3D model used by StarCraft II: Wings of Liberty, a sci-fi real-time strategy game; created in Blizzard's MDX3 format, which is the successor to the .MDX file format used in Warcraft 3 and the .M2 format used in World of Warcraft; used for storing models for game units and structures for the Protoss, Terran, and Zerg races; also used for other game objects.

M3 files are commonly found within in .SC2ASSETS files, which are stored in Blizzard's .MPQ format.

List of all softwares that can open the Blizzard MDX3 Model File
Blizzard StarCraft 2
Autodesk 3ds Max with M3 Import plugin
Blizzard StarCraft 2

How to Open .M3 file on different platforms

Open .M3 File on Windows

  • Right-click a .M3
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .M3 file and Select check box "Always use this app to open .M3 files" Press "Ok"

Open .M3 File on Mac

  • Right-click (or Ctrl + Left-click) the .M3 file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .M3 File on Linux

Right click on the .M3 file, choose "Open with" and select a program from the list above

Open .M3 File on iPhone

Select a file. If you don't see an application to open the .M3 file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .M3 File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .M3 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .M3 files

  1. You need to update the application that you normally use to open .M3 files. Only the latest version of the software supports the current .M3 file format
  2. You need to check the .M3 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)