An EXO file is a video chunk used by the YouTube Android app for offline video playback. EXO files open automatically in the YouTube Android app. Some EXO files can convert to MCS formats.
The .EXO extension is used for YouTube’s Android app to enable offline video functionality. EXO files are video chunks allowing efficient buffering and streaming on limited bandwidth.
EXO files use the MP4 multimedia format to store video and audio for streaming. As EXO files are made for the YouTube Android app, they do not directly work with media players or editing software.
EXO files range 18 KB to 5 MB, with a median of 310 KB. Keywords are mfhd, tfhd, tfdt, trun, moof and traf. Some EXO files start with 00 00 magic bytes.
To open EXO files, the YouTube Android app is required. On Android, EXO files playback offline videos downloaded from YouTube. EXO files support efficient streaming on mobile networks.