Convert spu to bmp

What is the difference between .spu and .bmp?

Description: The SPU file type is associated with Spectrum 512, an image file format used by Spectrum 512, a program designed for the Atari ST series of computers. Spectrum 512 was notable for its ability to display up to 512 colors on screen simultaneously, a significant achievement for its time given the hardware limitations. The SPU file typically contains bitmap images created or manipulated within the Spectrum 512 program, capturing the detailed and vibrant graphics that were possible with this advanced color display technology. These files are primarily of interest to enthusiasts of vintage computing and digital art historians studying early computer graphics.; A BMP file is an uncompressed raster image comprised of a rectangular grid of pixels. It contains a file header (bitmap identifier, file size, width, height, color options, and bitmap data starting point) and bitmap pixels, each with a different color.