If you did not download this from a reputable, official source, it is highly recommended to without opening it. You can check the safety of suspicious files by uploading them to tools like VirusTotal .
Files with the extension from third-party sources carry significant risks. RAR files are compressed archives that can easily hide malware , such as:
"Superior Design" is a common phrase in documentaries discussing evolution or biological engineering.
Often disguised as "codecs" or "viewing software" required to open the video.
A file named video.mp4.exe inside the archive can execute malicious code if clicked.