If you can tell me or what it was supposed to contain (e.g., a game mod, software patch, documents), I can give you a better assessment of the risk.
Files with generic names like this from unknown sources can often contain malware , viruses , or ransomware . SKE_R.rar
Do not open or extract this file unless you are absolutely sure of its source. If you downloaded this unexpectedly, it is highly recommended to run a scan with an updated antivirus program (like Windows Defender or Malwarebytes) immediately. If you can tell me or what it was supposed to contain (e
They hold other files, and without opening it, the contents are unknown. a game mod