A .rar file is a Roshal Archive used for high-quality data compression and secure file sharing. Understanding the CASim Software
If you have downloaded a RAR archive named "CASim6FF," you must extract its contents before you can use the software.
To run the simulator, you must have the Java Runtime Environment (JRE) installed on your system.
Only download software from official institutional repositories, such as the Brno University of Technology or trusted GitHub pages. Need to open, create, or convert a RAR file? - WinZip
It allows users to define rules and observe how patterns evolve over time across a grid of "cells."
