.ATM File Extension
File Type 1Vue Atmospheres File
What is an ATM file?
3D scene file created by Vue, a 3D environment modeling application; stores properties for the sun, light, clouds, the sky, fog, haze, wind, and effects; used for establishing the ambience and backdrop of a 3D scene.
File Type 2PSP Game Audio File
.ATM File Association 2
Audio file used by Sony PlayStation Portable (PSP) games; may contain various types of game audio, including background music and other sounds; stored in a Sony proprietary format.
Since ATM files are proprietary, they can only be played on the Sony PSP gaming device. However, ATM files can be transferred from a PSP to a computer using a USB connection.