The File Extensions Database

.ASF File Extension

  • Developer by: Microsoft
  • Category: Video Files
  • Format: Binary

What is an .ASF file?

.ASF is Advanced Systems Format File

An ASF file is a media file stored in the Advanced Systems Format (ASF), a proprietary video and audio container format. It contains audio and video data and optional metadata, such as title, author, and copyright bibliographic data. ASF files are developed by Microsoft primarily for streaming media.

ASF files specify the structure of the audio or video stream, but not the encoding method. They often contain Windows Media Audio (.WMA) or Windows Media Video (.WMV) data. They can be compressed using a variety of video codecs.

Programs that open Advanced Systems Format File
File Viewer Plus
Microsoft Windows Media Player
Nullsoft Winamp
CyberLink PowerProducer 6
VideoLAN VLC media player
Applian Replay Converter
NCH WavePad
VideoLAN VLC media player
ShedWorx Smart Converter
Aiseesoft Video Converter Ultimate
NCH WavePad
VideoLAN VLC media player
PentaLoop PlayerXtreme Media Player

How to solve problems with ASF files

  • Associate the ASF file extension with the correct application. On :
    Windows: Right click on any ASF file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ASF files". Mac: Right click (or Ctrl-click) the ASF 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 .ASF is Advanced Systems Format File. Because only the current version supports the latest ASF file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .ASF is Advanced Systems Format File update.
  • To make sure that your ASF file is not corrupted or virus-infected, get the file again and scan it with antivirus software.