You will need archive software like WinRAR or 7-Zip to look at the contents of a .rar file.
are you trying to do with it? (e.g., scan it for safety, extract its contents, know what it belongs to)? isus.rar
"ISUS" sometimes refers to "InstallShield Update Service." You will need archive software like WinRAR or
If this file was unexpected, downloaded from an untrusted source, or arrived via email, it is highly recommended to scan it with an antivirus program before opening it. scan it for safety
To give you the exact "feature" or information you need, could you tell me:
Here is what I can tell you about managing a .rar file like "isus.rar":
did you find "isus.rar" (e.g., inside a software folder, email attachment)?