I'd love to write a deep dive for you, but "Extinction.rar" is a bit of a ! It could mean a few very different things, and I want to make sure I’m hitting the right mark:
Is this a specific creepypasta , "lost" media file, or ARG (Alternate Reality Game) you've encountered? These often use file extensions like .rar or .exe to create a sense of digital "infection" or hidden secrets. Extinction.rar
If it’s a specific story or project, let me know a few more details so I can give you that deep, insightful look you're after! I'd love to write a deep dive for you, but "Extinction