If you must see the contents, extract it only within a Virtual Machine (VM) or a dedicated sandbox environment to prevent potential infection of your host system. Need to open, create, or convert a RAR file? - WinZip
Since late 2023, Windows 11 includes native support for opening .rar files directly in File Explorer, though third-party tools like WinRAR or 7-Zip remain common for advanced management. Security Considerations Mil011.rar
Use a tool like ExifTool to view the internal creation dates and authors, which may reveal its true purpose. If you must see the contents, extract it