.wmx Microsoft ASX playlist
Audio
| MIME type | audio/x-ms-asx |
|---|---|
| Description | Microsoft ASX playlist |
| Category | Audio |
| Signature (magic bytes) | 3C 41 53 58 (<ASX)3C 41 73 78 (<Asx)3C 61 73 78 (<asx) |
| Other extensions | .asx, .wax, .wvx |
Frequently asked questions
What is a .wmx file?
A .wmx file is a “Microsoft ASX playlist” (MIME type audio/x-ms-asx).
How do I open a .wmx file?
With a media player such as VLC, which plays almost every audio format; on Windows also Media Player, on macOS Music or QuickTime. To edit it, use Audacity for example.
How can you tell a genuine .wmx file?
By the bytes at the start of the file, the signature (magic bytes): 3C 41 53 58 (<ASX), 3C 41 73 78 (<Asx) and 3C 61 73 78 (<asx). On Linux and macOS, file --mime-type example.wmx checks the real type regardless of the extension.
Which MIME type belongs to .wmx?
The MIME type is audio/x-ms-asx. In the Apache web server: AddType audio/x-ms-asx .wmx; in nginx: types { audio/x-ms-asx wmx; }.