: Use a reputable tool like 7-Zip or WinRAR to "Open Archive" rather than "Extract". This allows you to see the file extensions inside (e.g., look for suspicious .exe , .scr , or .bat files) without running them.

: While .rar files are standard containers for compressed data, they are often used to bypass basic email or browser security filters that might otherwise block an uncompressed .exe file.

: If you must open it, use a virtual machine or a sandbox environment (like Windows Sandbox) to isolate it from your main operating system.