Files with asf extension are mainly multimedia files saved in Advanced Systems (streaming) format, a standard video format used by Microsoft Windows.
.ASF file extension - Advanced Systems (streaming) format
What is asf file? How to open asf files?
File extension asf is associated with the Advanced Systems (streaming) format. It is one of the standard video format included in basic media formats supported by Microsoft Windows.
ASF is an extensible file format that stores synchronized multimedia data. It supports data delivery over a wide variety of networks and protocols. It is also suitable for local playback.
ASF supports advanced multimedia capabilities including extensible media types, component download, scalable media types, author-specified stream prioritization, multiple language support, and extensive bibliographic capabilities that include document and content management.
Typically, asf files that contain audio content that is compressed with the Windows Media Audio (WMA) codec use the wma extension.
Similarly, asf files that contain audio content, video content, or both, that is compressed with Windows Media Audio (WMA) and Windows Media Video (WMV) codecs use the wmv extension.
Mime types:
application/asx
application/ms-asx-plugin
application/ms-asx
video/x-ms-asf
Updated: January 5, 2025
The default software associated to open asf file:
Microsoft Windows Media Player 
Company or developer:
Microsoft Corporation
Microsoft Windows Media Player is the default multimedia player/manager pre-installed in Microsoft Windows. WMP can manage music, videos, and pictures on a computer, play or view them, sync them with portable devices, or burn them on CD/DVD media. It also supports home media sharing with other computers. In Windows 11, you can still find it under the name Windows Media Player Legacy.
Company or developer:
VideoLAN Project Team
VLC media player for Mac is popular multimedia player that supports variety of audio and video formats as well as DVDs, VCDs, and streaming protocols.
Company or developer:
VideoLAN Project Team
VLC media player for Linux is multimedia player that supports variety of audio and video formats (MPG, AVI, DivX, MPEG-4, FLAC, OGG, MKV etc.) as well as DVD playback, and various streaming protocols.
List of software applications associated to the .asf file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open asf file, edit asf file, convert asf file, view asf file, play asf file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting asf files.
Software that open asf file - Advanced Systems (streaming) format
Programs supporting the exension asf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open asf file action.
