Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .m3

1 extension(s) and 1 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .m3 file?
  • Which program can create the .m3 file?
  • Where can you find a description of the .m3 format?
  • What can convert .m3 files to a different format?
  • Which MIME-type is associated with the .m3 extension?
Modula-3 Source Code .m3 file icon

Modula-3 Source Code

M3 file is a Modula-3 Source Code. Modula-3 is a modern programming language that supports interfaces, objects, generics, lightweight threads of control, the isolation of unsafe code, garbage collection, exceptions, and subtyping.
Detailed description not available
Category: Development files
Application: Modula-3
Program name: -
Mime-type: text/plain
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
C Source Code
Visual Studio Resource Script
Haskell Source With C Hooks
Haskell Source
C To Haskell Interface File
HTL Source
GNU Automake Input File
Juki AMS Embroidery Data .m1 file icon

Juki AMS Embroidery Data

M1 file is a Juki AMS Embroidery Data. Juki AMS is a computer controlled cycle machine.
Detailed description not available
Category: Data files
Application: Embird
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
m2, m3
Related extensions:
Embird Editor File
Embird Cross Stitch Format File
Embird Vector Embroidery Format File
Embird Color Palette Data
Eltac Embroidery Stitch Data
Embird Embroidery Data
Embird Embroidery F14 Data
Embird Embroidery F15 Data

Other types of files may also use the .m3 file extension. If you have helpful information about .m3 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Wii U Hash Data
jBASE J3 Data
DataFlex Index
L3 Media File
Readme Document
Mapped Read Format Data
MacWrite Text Document
Notation3 Document

The .m3 filename extension is often given incorrectly!

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

n3 (1), me (1), j3 (1), 3m (1), mw (1), l3 (1), h3 (1)

Can't open a .m3 file?

If you want to open a .m3 file on your computer, you just need to have the appropriate program installed. If the .m3 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.m3

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android