: If you did not expect to receive this file or downloaded it from an unfamiliar website or unsolicited email, you should delete it immediately without opening. How to Open a RAR File Safely

Because Windows (prior to Windows 11) and macOS do not natively support RAR files, you will need third-party software: Need to open, create, or convert a RAR file? - WinZip

: RAR files themselves are not inherently dangerous, but they are frequently used by attackers to hide malware or viruses. A virus contained within a RAR file cannot harm your device unless the archive is extracted and the malicious file inside is executed.