.3MM File Extension

File Type:
3D Movie Maker Movie Project

Having trouble opening .3mm extension? Don't panic! This page explains what 3mm files are as well as suggests programs you may use to open 3mm files. You can download these programs through this page.

What is a 3MM file?

3mm file extension has 3D Movie Maker Movie Project file type, developed by Microsoft, which is associated with the "video files" category.

Typically created with the 3D Movie Maker for Windows, a movie or animation contains three-dimensional scenes, which include 3D objects and characters. It also provides various effects, such as music, speech, etc.

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

3mm file icon
File Type:
3D Movie Maker Movie Project
Video Files

How to open 3MM file?

Double click the 3mm 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 .3mm 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 3mm 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 3mm 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 3MM files

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 3mm file as well. Download Universal File Viewer for your OS.

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