The file extension ASF identifies audio / video files.
The ending ASF is derived from Advanced System Format or Former Advanced Streaming Format.
The files may contain audio and / or video streams. Metadata, chapters and subtitles are also supported.
This proprietary format was developed by Microsoft Corporation and is part of the Windows operating system. As the name implies, the format is suitable for streaming. Asf files are therefore often found on the Internet.
Although most ASF files contain WMV or WMA compression encoded data, ASF is not identical to WMV. If the ASF file contains WMA or WMV data, however, the extension can be changed to wma or wmv.
ASF is not limited to these formats. ASF is a container format and the extension therefore makes no statement about the actual content of the file. Like Quicktime, it is extensible and supports many compression formats for video and audio. These can be contained in various combinations.
The file contents can also be protected by DRM. Then you need the appropriate, possibly paid license to view the content.
Windows
Windows Media Player
SWF & FLV Toolbox
Winamp
Creator NXT Pro
PowerDVD
PowerProducer
MoviePlus
VLC media player
Applian Replay Converter
AviDemux
Adobe Premiere Pro
Adobe Media Encoder
jetAudio
ALLPlayer
MPlayer
Free Studio
MediaCoder
FFmpeg
Aimersoft DRM Media Converter
Movavi Video Converter Personal
AMV Video Convert Tool
Microsoft Expression Encoder
iPad Video Converter Factory Pro
WinX Video Converter
Linux
Mac OS
Android
Most often resolving problems with opening ASF files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ASF files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ASF files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ASF files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the VLC media player applications is not on the list, select "Browse" option in order to manually locate the directory where VLC media player has been installed.
Sometimes problems with opening ASF files may not lie with the application itself, but can arise due to other causes, such as: