.TM8 File Extension

A .TM8 file is a Theta Music Composer 1.x Audio File, created by Theta Music Composer.

Open with Another Slight Atari Player. Available for Windows.

What is a .TM8 file?

The .TM8 file extension represents an audio file type specifically created by a program called Theta Music Composer (TMC), which is designed for use on Atari computers. This type of file is notable because it allows for music to be composed in a way that takes full advantage of Atari's stereo sound capabilities, supporting up to 8 different audio channels. This is a step up from the more basic .TMC files, which only support mono (single channel) and stereo (two channels) audio.

To open or play a .TM8 file, you can use a program called Another Slight Atari Player (ASAP), which is capable of handling the specific requirements of these 8-channel audio files. Additionally, the Theta Music Composer software itself can also be used to open and manipulate .TM8 files. This allows users to either listen to music or create and edit their own music tracks on systems that support the Atari format.


Our goal is to help people find the most up-to-date information about file extensions for Windows, Mac, Linux, Android and iOS. We researched over 10,000 file extensions and their respective programs that open those files. If you want to suggest edits or updates about .TM8 file formats, example files, or programs that are compatible. Please contact us.

More extensions