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.ASF File Extension

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File TypeAdvanced Systems Format File

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Rare Uncommon Average Common Very Common
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 optional metadata, such as title, author, and copyright bibliographic data. ASF files are 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
File Viewer Plus
Microsoft Windows Media Player
Nullsoft Winamp
CyberLink PowerProducer 6
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 7/28/2016

FileInfo - The File Extensions Database

This page contains information about the .ASF extension and its known file associations. Our goal is to help you understand what an ASF file is and how to open it.

The Advanced Systems Format file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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