If you are looking for a "scary story" about a mysterious file you found, it may be a niche or a personal creative writing project. Many horror stories use the ".rar" or ".exe" suffix to mimic the style of classic "lost media" creepypastas (like Sonic.exe or Ben Drowned ).

Are you referring to a specific or a creepypasta you saw on a forum like Reddit? LISA the Hopeful by Taco Salad - Itch.io

If you can provide more details about the of the story (e.g., characters involved or what happens when the file is opened), I can help you track down the specific source.

: Within the LISA (The Painful/The Joyful) RPG community, "LISA.rar" frequently refers to archive files for fangames or legacy versions of the original games.