.DIB File Extension

Generic Windows or OS/2 bitmap graphic; similar to a .BMP file, but has different header information; supports 1, 4, 8, and 24 bits per pixel if the image is uncompressed and 4 and 8 bits per pixel if the image uses RLE compression; a 24-bit DIB image contains 8 bits, or 1 byte for each RGB color.

Since DIB files are saved in a standard bitmap format, they can be opened by most image editors and image viewing applications.