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.ASF File Extension

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File TypeAdvanced Systems Format File

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CategoryVideo Files


This file is saved in a binary format, which requires a specific program to read its contents.

What is an ASF 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 optionally metadata, such as title, author, and copyright bibliographic data. The file is developed by Microsoft primarily for streaming media.

More Information

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 ASF files
Microsoft Windows Media Player
Eltima SWF & FLV Toolbox
Nullsoft Winamp
Roxio Creator NXT Pro 3
CyberLink PowerDVD 15
CyberLink PowerProducer 6
Serif MoviePlus
VideoLAN VLC media player
Applian Replay Converter
VideoLAN VLC media player
ShedWorx Smart Converter
Aiseesoft Video Converter Ultimate
VideoLAN VLC media player
PentaLoop PlayerXtreme Media Player
Updated 4/12/2016