Convert x11 to png

What is the difference between .x11 and .png?

Developer: MIT (Massachusetts Institute of Technology); PNG Development Group

Description: The X11 file type, associated with the X Windows System, is a format designed to contain screen or window dumps (screenshots) from the X Window System, a windowing system for bitmap displays common on UNIX-like operating systems. These dumps are essentially captures of the graphical output of applications running within the X environment, saved in a format that can be viewed or analyzed later. The X Window System serves as the foundational graphical interface for many Linux and UNIX systems, facilitating a wide range of graphical applications. X11 files enable users to save and share the state of a graphical interface at a specific point in time, useful for documentation, debugging, or graphic design purposes.; 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.