If the file is confirmed safe, it is likely intended for one of the following uses: : Extract the folder within the .rar .
If you are running a heavy lobby map like those from HyCraft, you may need to boost your game performance:
: Minecraft maps and schematics should only contain folders (like region , data ) or .schematic / .litematic files. If you see an executable inside the archive, do not run it.
: Consider using the Badlion Client or Lunar Client to improve frame rates.