.DMO File Extension

Apogee Software
File Type:
Duke Nukem 3D Demo File

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

What is a DMO file?

Dmo file extension has Duke Nukem 3D Demo file type, developed by Apogee Software, which is associated with the "game files" category.

Duke Nukem 3D is a classic video game in the first-person shooter genre. Demo files created by this game are saved with the .DMO extension. They store short recorded gameplay clips of player actions or events happening in the game world.  

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

dmo file icon
Apogee Software
File Type:
Duke Nukem 3D Demo File
Game Files

How to open DMO file?

Double click the dmo 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 .dmo 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 dmo 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 dmo 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 DMO files

  • Windows Windows
    • Apogee Duke Nukem 3D Apogee Duke Nukem 3D

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 dmo file as well. Download Universal File Viewer for your OS.

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