A daily updated filename extension database!

MDJ file extension

The table below provides useful information about the .mdj file extension. It answers questions such as:

  • What is the .mdj file?
  • What program do I need to open a .mdj file?
  • How can the .mdj file be opened, edited or printed?
  • How can I convert .mdj files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ StarUML Project File

MDJ file is a StarUML Project File. StarUML is a tool to create class diagrams and other types of diagrams in the Unified Modeling Language (UML).
Category: Project files
Application: StarUML
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
MDJ aliases:
MDJ related links:
MDJ related extensions:
StarUML v1 Model Data

StarUML UML Fragment Data

StarUML UML Project

Other types of files may also use the .mdj file extension.

🚫 The .mdj file extension is often given incorrectly!

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

dj, md, mdh, mdi, mdk, mdm, mdn, mdu, mdy, mfj, mj, mjd, msj, mvj, ndj

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft Document Imaging File
Moldex3D eDesign Project
Chaos Desktop Metadata
Sega Genesis ROM MD
Mayura Draw Document
MuseData Score
MIDI Music
DJGPP Source Code
Palladio ModelJoin Query File
Microsoft Access Blank Database Template

🔴 Can't open a .mdj 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .mdj file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .mdj file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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