Convert jj to bmp

What is the difference between .jj and .bmp?

Description: The JJ file type, associated with Doodle C64 (Compressed), is a compressed image format used specifically for storing digital artwork created on the Commodore 64, a popular home computer from the 1980s. This format is designed to compress the graphical data to save storage space while maintaining the integrity of the original artwork. It was commonly used by artists and computer enthusiasts to share and distribute pixel art and graphical designs made on the Commodore 64. The JJ file format is specific to the Commodore 64 platform and requires specialized software or emulators to open and view the images on modern computers.; 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.