>> MJ2 file

MJ2 file format description

Many people share .mj2 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .mj2 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .mj2 files.

1 filename extension(s) found in our database.

.mj2 - Motion JPEG 2000 Video

The MJ2 video files are related to Mainconcept Reference 2. MJ2 file is a Motion JPEG 2000 Video. JPEG 2000 is a wavelet-based image compression standard. It was created by the Joint Photographic Experts Group (JPEG).

Mainconcept Reference 2
Video files
- / -
Motion JPEG 2000 Video related extensions:
Surveillance Video
ScreenCam Movie File
Gens Game Recording
Gens Game Recording Format 2 File
FAST Video
DivX Video On Demand Movie

Naturally, other applications may also use the .mj2 file extension. Even harmful programs can create .mj2 files. Be especially cautious with .mj2 files coming from an unknown source!

Can't open a .mj2 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .mj2 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

j2, m2, m2j, mi2, mj, mn2

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Gargoyle Story Document
AutoDesk Softimage Data
MovieJack DVD Ripper File
Palladio ModelJoin Query File
Descent 2 Mission Data
World of Warcraft Model Object

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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