Raster Image Files. The RGB file extension is used to refer to a color bitmap image file format created by Silicon Graphics International – SGI. RBG stands for red, green, blue – the three hues of color that can combine on screen to create any color. RGB files can be accessed and edited with the appropriate software.
Raster Image Files. 24-bit color bitmap image format used by Japanese software; often saved with a .FAL file, which includes header information that describes the RGB image file.