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

Details of extension .asx

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

Below, you can find answers to the following questions:

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

Advanced Stream Redirector

ASX file is an Advanced Stream Redirector. The ASX format is a type of XML metafile designed to store a list of Windows Media files to play during a multimedia presentation.
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:
Advanced Systems Format Media
Windows Media Video Redirector
Windows Media Audio Redirector
Windows Media Redirector
Streaming Media Shortcut
Streaming Media Format Video
Alpha Five Database Index .asx file icon

Alpha Five Database Index

ASX file is an Alpha Five Database Index. Alpha Five is a beginner friendly application development environment.
Category: Development files
Application: Alpha Five
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Alpha Five Database
Alpha Five Library
Alpha Five Memo Data
Alpha Five Data Dictionary Index
Alpha Five Data Dictionary
Alpha Five Data Dictionary Memo
Alpha Five Variables Data
Alpha Five Data
Alpha Five Script Data

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

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

ASCII Armored GPG/PGP File
Autodesk 3D Studio Scene in ASCII
SOBEK RTC Communication Data
Neuroscan 3D ASCII Data
Atari ST Executable
ArcIMS XML Project
Alphacam Stone Drawing
Plain Text Document
Spektrum DX8 Transmitter Firmware

The .asx filename extension is often given incorrectly!

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

asc (44), wsx (1), acx (1), sax (1), azx (1), axs (1), awx (1), ass (1), as (1), xsx (1), aex (1), sx (1), qsx (1), axx (1), ax (1)

Can't open a .asx file?

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

Windows can't open this file:

File: example.asx

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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