Opening M64 Files

The M64 file type is primarily associated with Project64.

M64	File extension: M64
	File type:	game data file

What is an M64 file?

M64 files mostly belong to Project64. M64 files serve multiple roles in the Nintendo 64 environment. They are not a single universal format but represent different types of data.
Common uses include:

Audio Data: Some M64 files hold audio content such as music and sound effects from titles like Super Mario 64 and Mario Kart 64. Programs like M64Py help handle these files.

Game Save Data: Other files function as save files for Super Mario 64. Emulators such as Project64 use these files to restore game progress. For more on this, check PJ64 Emulator.

Level Data: A few M64 files contain level designs for Super Mario 64. Tools like Mupen64Plus support these files. Additional info is found at Mupen64Plus.

CNC Machine Programs: Some M64 files are used with CNC machines via software such as TOL-Edit. These are not related to game content.

FilExt.com tips: Each file is built for a specific purpose. Knowing the file’s origin is key to choosing the right program to open or view it. If your file relates to Nintendo 64 gameplay, using an emulator like Project64 or Mupen64Plus will be appropriate. For audio content, a compatible audio editor that supports retro formats is needed.

How can I open an M64 file?

You need a suitable software like Project64 to open an M64 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your M64 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a M64 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online M64 Text Viewer

Choose your .m64 file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert M64 files:

Project64
See the previous paragraphs to learn more about the main application. M64 files are often referred to as Project64 games because this type of file is primarily created or used by this software.
Mupen64
Mupen64 (MUlti Platform Emulator for the N64) is a Nintendo 64 game console emulator. Mupen64 was originally developed on and for Linux, but is designed to be cross-platform. It has been ported to other operating systems supported by the SDL library, including Microsoft Windows, BeOS, Mac OS X, and FreeBSD. Released under the terms of the GNU General Public License, Mupen64 is free software. The identifying characters used for this association are - Hex: 4D 36 34 1A, ASCII: M64 . Related links: Wikipedia Mupen64 Page, M64 File Format Description

M64 file format details:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. In the following you will find our evaluation of the M64 files:

The M64 file ending is used by a few programs, each with its own file format. The two most common formats are as follows:

35% of all M64 files have the same signature D3 80. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The file size is in the range of 780 bytes to 8 KB. The file type was developed 20 years ago and is still in use today. A common filename is Bob-omb-s Battlefield.m64. These files are often associated with level, event, battlefield, cutscene, screen, title, spooky, slide and menu.
25% of all M64 files are associated with mupen64 movie capture. They consist of illegible, cryptic characters. The files are often between 6 KB and 560 KB in size. The files contain the following words: SUPE. The file name tylerkehnemkdashersonicpackersnarksilentslayersgaehnederutotplushsm64expert-sm64.m64 or Super Mario 64 (U) 1key.m64 is characteristic of these files. Files like these are about expert, mario, super, stars and sonicpacker.

All other M64 files (40%) have different formats. Tagged as star, castle, mkdasher, galaxy, thegreenstars, homerfunky, inside, mkdash, koopa, kyman, ninst, snark or sonic. Just click the "Choose your .m64 file to analyze" button on this page to find out what your M64 file is.

Technical Data for M64 File Extension

File classification:

Game

Identifier:

Hex: 4D 36 34 1A, ASCII: M64 (provided by TrID database)

Related files:

n64, z64, v64, elf, mid, zip, mp3, mp4, fr, nmv, vmv, sav

Mime type:

application/octet-stream

an m64 game data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with M64 files

Associate the M64 file extension with the correct application.
Update your software that should actually open game data files. Because only the current version supports the latest M64 file format. Search, therefore, e.g. on the manufacturer website after an available Project64 update.
To make sure that your M64 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .M64 file online - secure, fast, and no downloads needed.