of the file, and do you have the other parts (e.g., part1.rar )? What program are you using to open it?
I can then walk you through fixing it or finding the right tools. Is WinRAR still relevant? - Spiceworks Community
Because RAR files are commonly used for distributing software, they can sometimes carry viruses or malware that traditional antivirus software might struggle to catch if the archive is encrypted. Best Practices for two2.rar
Unlike ZIP, which is free and built into Windows, WinRAR is commercial software. While it offers a "free trial," it is technically meant to be purchased.