If you find a file having an OGG extension, you can say that it is an OGG Vorbis Compressed Audio File that is used for holding audio data. Artist and track information, as well as metadata, can all be included in this.
The developers of the OGG format, Xiph.org, use the word "Vorbis" which pertains to their encoding scheme. Other audio compression types like FLAC and Speex may use the .OGA file extensions as they fall in the category of the OGG files that aren't considered Vorbis.
The OGG file could also be an Origin Graph file, if not an audio file. This is then opened in a graphic program and not played in a media player.
There are different audio software and music players that can play OGG files, such as VLC, Miro, Windows Media Player, Xion Audio Player, MPlayer, etc. OGG files could also be played online through Google Drive.
These file types can also be opened on Macs by some of those programs, including Elmedia Player and Roxio Toast. Playback is supported on Linux, as well as Zinf, Totem, and Amarok by programs like Miro and VLC.
An online OGG file or a local file dragged into Chrome could be played without having to download a separate program. OGG files can be streamed by Opera and Firefox too.
You do not have to download a separate program to play an online OGG file
The graph OGG files can be opened by Origin. You can view and copy information from an OGG file by using Origin Viewer which is a free program from the same company that develops Origin.
You can convert an OGG file to MP3, WAV, MP4, and other such formats using some free audio file converters. You can also use an online converter like Zamzar or FileZigZag (that will probably be the easiest thing to do).
For instance, you can convert OGG Vorbis Compressed Audio Files to several formats, even more than the ones just mentioned, like OPUS, WMA, M4A, AIFF etc. using FileZigZag. You can also use it to convert OGG files online even if they are not compressed with Vorbis. Zamzar works in a similar fashion.
OGG Vorbis can also be seen as a container format that functions that way to replace the OGG format. It can hold streams of video, audio and subtitles or other text. The OGX file extension is used by these types of multiplexed media files.
Some video games use the MOGG file extension when multiple OGG files are stored in the same file.