The file might be mislabeled or misidentified. General Guide for Handling Unknown .iso Files
A personal, community-modded, or pirated ISO file. Newstar Richie.iso
unknown .iso files directly, as they can contain malicious content. The file might be mislabeled or misidentified
Use software like PowerISO or Rufus if you intend to burn it to a USB drive. 3. If this is a Game/Software Mod or Discord server
If this file came from a community, forum, or Discord server, check the original source for a readme.txt file or installation instructions.