.MDD File Extension

Octopus Studio
File Type:
MDict Resource File

Having trouble opening .mdd extension? Don't panic! This page explains what mdd files are as well as suggests programs you may use to open mdd files. You can download these programs through this page.

What is a MDD file?

Mdd file extension has MDict Resource file type, developed by Octopus Studio, which is associated with the "data files" category.

Associated with MDict, the file saves different content, such as sounds, pictures, etc., which allows enhancing dictionary definitions.

To learn how you can open the given file, read the information below.

mdd file icon
Octopus Studio
File Type:
MDict Resource File
Data Files

How to open MDD file?

Double click the mdd file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .mdd extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the mdd extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the mdd file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open MDD files

  • Windows Windows
    • Octopus Studio MDict Octopus Studio MDict
  • iOS iOS
    • Octopus Studio MDict Octopus Studio MDict

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the mdd file as well. Download Universal File Viewer for your OS.

Download for Win
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Download for Mac
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