How Can I Open MJPEG Files?

The same file extension may be used by different file types and different programs, and sometimes it can be tough to figure out which program to use. When you need to open MJPEG files, start by double-clicking it. If it doesn’t open, or you receive an error message, take the following steps to try to open it.

Step 1: Try Different Software Programs

If you can’t open MJPEG files, you may not have the right program installed on your computer. You can start by installing some of the most common programs associated with MJPEG files. A few of these associated software titles include Firefox, QuickTime, and Chrome. You can download one of these programs from the developer’s website.

Step 2: Use the File Type as a Hint

If you know the type of file you’re working with, that might help you figure out how to open it. MJPEG files are usually Video Files. Look for a program on your computer that opens this type of file, and see if it will open the MJPEG file.

If you’re not sure of the file type, you can find it within the MJPEG file itself. Follow the steps below to find this information.

File Woman
On a Windows Computer:
  1. Right-click the file icon.
  2. Select “Properties” from the drop-down menu.
  3. Find the file type listed under “Type of File”.
On a Mac:
  1. Right-click on the file icon.
  2. Select “More Info” from the drop-down menu.
  3. Look for the file type listed under “Kind”.

Step 3: Ask a Developer

If you’re still having trouble opening your MJPEG file, a software developer may be able to help. If you know which software program should open your file, contact the developer who created that program. If you’re not sure which program to use, consult the list below to find the developers for the most common programs associated with MJPEG files:

Software Developer
Firefox Mozilla Foundation
QuickTime Apple, Inc.
Chrome Google, Inc.
PlayStation SONY
Safari Apple, Inc.


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