This file, a PPM - Portable Pixmap Image File, is a 24 bit color image that is saved in a text format. Each pixel of the image is stored as a number representation of the color the pixel was in the image. The number representation range is, in the range of 0 - 65536. The height, width, whitespace information and the max. color value are all stored in the file. The Portable Pixmap format is not often used for storage of larger images as it is inefficient compared to other image storage formats.