Ensure the file is actually a .rar and not an executable (like .exe ) disguised with a double extension (e.g., file.rar.exe ).

Large files can be split into several smaller parts (e.g., .part1.rar , .part2.rar ). 2. How to Open and Extract

Use a tool like VirusTotal to upload the file and check it against dozens of antivirus engines.

Confirm the origin of the link. Downloads from third-party "file locker" sites are high-risk.

If you did not create this file yourself or receive it from a trusted colleague,

Since a "paper" requires a subject with verifiable facts, I can provide a technical overview of and how to safely handle unknown archives like the one you mentioned. Technical Analysis of RAR Archives

Can be secured with AES-256 bit encryption, requiring a password to view the contents.