Most modern archivers allow you to "View Content" without fully extracting the file. If you see a bunch of .exe or .scr files inside a mystery RAR, proceed with extreme caution. The Verdict
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Should you click it? What is it? And why do files end up with names that look like a cat walked across a numpad? Most modern archivers allow you to "View Content"
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Use a tool like VirusTotal to check the hash before opening it.