.ALBUM File Extension
What is an ALBUM file?
Album file created and used by GLC_Player, an application used to view 3D models; contains a collection of 3D models; can be closed and opened for viewing 3D models at a later time.
Albums are designed to help you with managing your 3D models in formats such as OBJ, 3DS, COLLADA, and STL. The enable you to load models, view thumbnails of loaded models, and select different models.