What is a b_w file and how do I open a b_w file?

An Atari monocrhome image file is a digital image in black and white, and these Atari monochrome image files are used in some Atari games as parts or sections of a bigger digital image or graphical element that is integrated into digital video games which were developed for the Atari system. These Atari monochrome image files were also implemented into some old applications and digital video games that were developed for earlier Mac platforms. The black and white colors in an Atari monochrome image file can also have different gradients or depths, thereby incorporating grayscale tones into the digital graphics that can be implemented with these Atari monochrome images. The content of an Atari monochrome image file is embedded with binary formatting specifications and digital image compression standards similar to that of the digital image compression specifications used for digital bitmap graphics. The data encoding standards implemented into the content of an Atari monochrome image file allows the digital graphics to be saved in the B_W file format. These Atari monochrome image files are appended with the .b_w extension.