PIXIT
From Just Solve the File Format Problem
PIXIT (if that is its name) is a DOS toolkit for making an executable file that, when executed, displays an image.
It was developed by an anonymous person. The name "PIXIT" is derived from the distribution filename; no name is used by the software or its nonexistent documentation.
Format details
There are two formats: a COM format for 320×200 images, and an EXE format for 640×480 images. The EXE format is not portable, and seems fairly useless.
The generation process starts with a GIF file, which is converted to a non-compressed format.
Identification
The COM format starts with the bytes in the included PIX320.COM file. The first 16 are bc 00 01 b8 13 00 cd 10 b8 12 10 bb 00 00 b9 00
.
The EXE format starts with the bytes in the included PIX640.EXX file.