The File Extensions Database

.AC3 File Extension

  • Category: Audio Files
  • Format: Binary

What is an .AC3 file?

.AC3 is Audio Codec 3 File

Audio file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and game consoles.

Programs that open Audio Codec 3 File
File Viewer Plus
Microsoft Windows Media Player
Apple QuickTime Player with AC3 Codec
Nero 2018
Nullsoft Winamp
CyberLink PowerDVD 17
Apple QuickTime Player with AC3 Codec
ShedWorx Smart Converter
Aiseesoft Video Converter Ultimate
PentaLoop PlayerXtreme Media Player

How to solve problems with AC3 files

  • Associate the AC3 file extension with the correct application. On :
    Windows: Right click on any AC3 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.AC3 files". Mac: Right click (or Ctrl-click) the AC3 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .AC3 is Audio Codec 3 File. Because only the current version supports the latest AC3 file format. Search, therefore, e.g. on the N/A manufacturer website after an available .AC3 is Audio Codec 3 File update.
  • To make sure that your AC3 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.