WMA

Readable

audio · also known as WMA

Windows Media Audio Format is a subtype of the Advanced Systems Format, developed by Microsoft for storing audio data streams. It comprises a Header Object, which describes the properties of the data streams, a Data Object, which contains the actual data streams stored in Data Packets and, optionally, one or more Index Objects. Audio data is stored using the Windows Media Audio codec, and the format supports streaming across networks.

Identify it

Extensions	`.wma.asf`
MIME types	`video/x-ms-wmaaudio/x-ms-wma`
Signatures	`3026b2758e66cf11a6d900aa0062ce6c` at byte 0 (Windows Media Audio)
PRONOM	`fmt/132`
Wikidata	`Q2194`
Library of Congress	`fdd000027`
Apple UTI	`com.microsoft.windows-media-wma`

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Open it

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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