Right-click the file and select Mount . This will treat it as a virtual CD/DVD drive. macOS: Double-click the file to mount it.
If this file came from a community, forum, or Discord server, check the original source for a readme.txt file or installation instructions.
Disclaimer: Handling unknown ISO files can pose a security risk. Only open files from trusted sources.
unknown .iso files directly, as they can contain malicious content.