If you are curious about its contents without risking your computer:
If you have technical skills, open the file only inside a virtual machine (like VirtualBox ) or a "Sandbox" environment that is isolated from your main operating system. ❓ Possible Contexts
Many attackers use "double extensions" like Tongue hand.png.exe . Ensure your system is set to "Show file extensions" in folder settings.
Upload the .rar file to this site. It will scan the archive using over 70 different antivirus engines and show you exactly what is inside.
Older internet pranks often used weirdly named files to trick users into opening a jumpscare video or disturbing image.