What is an ASX file?
An .ASX file is a Microsoft ASF Redirector File originally developed by Microsoft. These files act as a playlist or a shortcut to streaming media files over the internet. They do not contain actual video or audio data. Instead, they use XML or plain text (often UTF-8 or UTF-16 encoded) to point a media player to the remote media stream. While mostly used for audio and video playlists, the .ASX extension is sometimes used for Business Process Model diagrams or Alpha Five index files.
How to open ASX files?
You can open standard .ASX media playlists using Windows Media Player, VLC media player, or GOM Player. Because these files are typically written in plain text, you can also open them using a basic text editor like Notepad++ to read the streaming URLs inside. If you need a different format, we recommend converting the underlying media files to sensible target formats like MP4 or MP3 on convert.guru.
Inspect and identify ASX files online
Because an .ASX file has multiple possible meanings, we recommend using viewer.online/asx to identify the actual format of the user's file. You can use viewer.online/asx to analyze .ASX files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
Ultimately, viewer.online/asx is useful for identifying, inspecting, and understanding .ASX files without installing software or dealing with compatibility problems.