MDD File

What are MDD files and how to open them

Are you having problems opening a MDD file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your MDD files.

What is a MDD file?

MDD files have multiple uses, and MacDraft Drawing is one of them. Read more about the other uses further down the page.

MacDraft Drawing

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open MDD files

Important: Different programs may use files with the MDD file extension for different purposes, so unless you are sure which format your MDD file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different MDD openers which you will find listed below.

Last updated: January 22, 2025

All known file formats using extension .MDD

While MacDraft Drawing is a popular type of MDD-file, we know of 2 different uses of the .MDD file extension. Different software may use files with the same extension for different types of data.

MDict Resource

We know that one MDD format is MDict Resource. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of MDD files. Remember, different programs may use MDD files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about MDD file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.