Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .asf

2 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .asf file?
  • Which program can create the .asf file?
  • Where can you find a description of the .asf format?
  • What can convert .asf files to a different format?
  • Which MIME-type is associated with the .asf extension?
Advanced Systems Format Media .asf file icon

Advanced Systems Format Media

ASF file is an Advanced Systems Format media file. It is the file format used by Windows Media. Audio and/or Video content compressed with a wide variety of codecs can be stored in an ASF file and played back with the Windows Media Player (provided the appropriate codecs are installed), streamed with Windows Media Services or optionally packaged with Windows Media Rights Manager.
Category: Video files
Application: Windows Media Player
Program name: mplayer.exe
Mime-type: video/x-ms-asf
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Microsoft Video for Windows Movie
Autodesk Animator FLIC File
QuickTime Movie
Mpeg Video
Multimedia Viewer Book
RealMedia File
MicroDVD Subtitle Format File
SubRip Subtitle Format
Mpeg-4 Video Container
ActiveMovie Streaming Format Data .asf file icon

ActiveMovie Streaming Format Data

ASF file is an ActiveMovie Streaming Format Data. ActiveMovie is a type of streaming media technology for the Windows® operating system.
Detailed description not available
Category: Audio files
Application: Awave Studio
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:

Other types of files may also use the .asf file extension. If you have helpful information about .asf extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Adobe Photoshop Custom Filter
Microsoft Agent Character Data
DB/TextWorks Access Control File
Alphacam Stone Drawing
AirZip FileSECURE AZF File
MakeMusic Finale Auto-save File
ASCII Armored GPG/PGP File
MATLAB AutoSave File
Microsoft InfoPath Form Definition

The .asf filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

acf (51), qsf (1), axf (1), asv (1), asr (1), ase (1), asc (1), zsf (1), as (1), wsf (1), afs (1), saf (1), aef (1), azf (1), awf (1)

Can't open a .asf file?

If you want to open a .asf file on your computer, you just need to have the appropriate program installed. If the .asf association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.asf

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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