If you can tell me or what type of content you were expecting (e.g., a document, software, or media file), I can help you identify a safe way to proceed.
Generic, random file names are frequently used to distribute malware or phishing scams [2]. PA76N8MK0L5.rar
Files with randomized, alpha-numeric names like this are often: If you can tell me or what type
Compressed files designed to hide their contents [1]. or media file)