Ogg is a free, open-source multimedia container format used for storing audio, video, and other types of data. It is designed to efficiently stream and manipulate high-quality multimedia content. The format supports various codecs, including Vorbis for audio and Theora for video, making it versatile for different applications. Developed by the Xiph.Org Foundation, Ogg aims to provide a royalty-free alternative to proprietary formats. Its structure allows for easy editing and streaming, making it popular among developers and content creators. Ogg files typically have the extension ".ogg" and are widely supported by many media players and software applications.