Popular and safe options include 7-Zip (free and open-source) or WinRAR .

If you did not expect this file, do not open it. You can check for threats by uploading the file to a service like VirusTotal or using NordVPN's File Checker before extraction. How to Open a RAR File

Compressed files can hide viruses or malware. Malicious code inside a RAR archive typically cannot harm your device until it is extracted.