Convert gem to png

What is the difference between .gem and .png?

Description: The GEM (Graphical Environment Manager) Paint file type, with the extension .gem, originates from Digital Research's Graphical Environment Manager, which was an early graphical user interface for computers. These files are specifically used to store bitmap images created or manipulated within the GEM Paint application. GEM Paint provided users with basic tools for creating and editing images, much like early versions of Microsoft Paint. The .gem file format is primarily associated with the GEM desktop environment that was popular in the mid-1980s for PCs running CP/M and later on the Atari ST series of computers.; A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.