There are 2 file types use the .KOZ file extension:
1. Audiokoz Music File
Audio format developed by Chaoticom and used by Groove Mobile for downloading songs to mobile phones; also used by the Sprint Music store for Sprint/Nextel subscribers.
KOZ files can only be played on compatible cell phones and not on computers. However, a corresponding .WMA file, which is playable on a PC, is usually made available as a free download with the KOZ file. These files can be played with Microsoft Windows Media Player.
|Not meant to be opened on a computer|
Updated: June 4, 2009
2. Bell Music File
Song downloaded to a cell phone from Full Track Music; used by Bell Canada / Bell Mobile for phones such as the Sanyo MM-7500
|Playable only on a supported cell phone|
Updated: May 17, 2021