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MP3 file extension

The table below provides useful information about the .mp3 file extension. It answers questions such as:

  • What is the .mp3 file?
  • What program do I need to open a .mp3 file?
  • How can the .mp3 file be opened, edited or printed?
  • How can I convert .mp3 files to another format?
  • Where can I find the specifications for .mp3?
  • Which MIME-type is associated with the .mp3 extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.mp3 file extension details

MPEG Audio Layer 3 File

MPEG Audio Layer 3 File .mp3 file icon
MP3 file is a MPEG Audio Layer 3 File. MP3 is a popular digital audio encoding and lossy compression format invented and standardized in 1991 by a team of engineers directed by the Fraunhofer Society in Germany.
Category: Audio files
Application: WinAMP
Mime-type: audio/mpeg
Magic number: -
Magic string: -
Sample: -
MP3 aliases:
mpeg3, mpga
MP3 related links:
MP3 related extensions:
Audio Interchange File

CD Audio Track

Lyrics Data

MIDI Music

Napster Secured Audio

Real Audio Sound

Macintosh Sound Resource

Amiga 8SVX Sound

Creative Labs Sound Blaster Sound

Windows Waveform Sound

Other types of files may also use the .mp3 file extension.

.mp3 file extension error

The .mp3 file extension is often given incorrectly!

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

lp3, p3, mpw, mp, ml3, m3, pm3, np3, mpr, mo3, m3p

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Modula-3 Source Code
NP3 Compressed Nucleotide Database
Monochrome Picture TIFF Image
Mach3 Plugin
Primavera Project Planner Data
Race Studio 2 Map File
Milestones v3 Project
Crouzet Millenium 3 Program
MetaPost Source Code
MO3 Audio
open .mp3 file

Can't open a .mp3 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .mp3 file association, check the FAQ.

.mp3 file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .mp3 file extension, write to us!

.mp3 file extension

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