With Filestar you get 11 different skills for working productively with X Windows System Dump (.x11) files.
About .X11
Name
X Windows System Dump
Extension
.x11
Format
Binary
Category
Developer
Developer
MIT (Massachusetts Institute of Technology)
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.