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AC3 file - How do I open a .ac3 file?

The table below provides useful information about the .ac3 file extension. It answers questions such as:

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

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

✅ AC-3 Compressed Audio

AC-3 Compressed Audio .ac3 file icon
The AC3 file is an AC-3 Compressed Audio. Lossy format designed for the efficient encoding of surround sound, developed to support motion picture presentations in theaters and at home.
Category: Audio files
Application: AC3 Filter
Mime-type: audio/ac3
Magic number: -
Magic string: -
Sample: -
AC3 aliases:
AC3 related links:
AC3 related extensions:
Audio Interchange File

CD Audio Track

MIDI Music

MPEG Audio Layer 3 Data

Real Audio Sound

Macintosh Sound Resource

✅ SPICE AC/Frequence Data

SPICE AC/Frequence Data .ac1 file icon
The AC1 file is a SPICE AC/Frequence Data. SPICE (Simulation Program with Integrated Circuit Emphasis) is a widely-used circuit simulation program. It was developed as public domain software at the University of California and versions 2G6 (vanilla SPICE) and 3.0 are still used.
The AC1 format description is not yet available
Category: Data files
Application: SPICE
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
AC1 aliases:
ac2, ac3, ac4, ac5, ac6, ac7, ac8, ac9
AC1 related links:
AC1 related extensions:
SPICE Status Data

SPICE Sweep Operations Output Data

SPICE Transient Analysis Output Data

SPICE Initial Condition Data


Other types of files may also use the .ac3 file extension.

🚫 The .ac3 file extension is often given incorrectly!

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

a3, a3c, ac, ace, acr, acw, ad3, af3, as3, av3, ax3, c3, ca3, qc3, xc3

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Alan v3 Adventure Code
Casio WK-1800 Save All Data
Micrografx ABC FlowCharter 3 Document
GNU Autoconf Input File
Quick Chart 3 Map
ActionScript 3.0 Source Code

🔴 Can't open a .ac3 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 .ac3 file association, check the FAQ.

🔴 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 .ac3 file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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