SOURCE
OGG
An .ogg file is audio in Xiph.Org's open Ogg container, usually Vorbis and sometimes Opus or FLAC. Ogg Vorbis is royalty-free, so game engines such as Unity, Godot and RPG Maker, Minecraft resource packs and many open-source apps use it. Android, Chrome and Firefox play it; older iPhones and some car stereos don't.