Notes about the RASTER file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The RASTER file type is primarily associated with 'Spore' by Electronic Arts, Inc.. Spore is a multi-genre massive single-player online metaverse video game developed by Maxis and designed by Will Wright. It allows a player to control the evolution of a species from its beginnings as a unicellular organism, through development as an intelligent and social creature, to interstellar exploration as a spacefaring culture.