MSP (Microsoft Paint)
MSP (Microsoft Paint, or Windows Paint) is the native file format of the Paint application included with Microsoft Windows versions 1 and 2. It is a bi-level raster image format.
Files have a 32-byte header.
Version 1 files begin with signature bytes
44 61 6E 4D.
Version 2 files begin with signature bytes
4C 69 6E 53.