A extension indicates a container that can hold multiple files and folders in a significantly smaller size than their original state.
Since Windows and macOS do not always support .7z files natively, you will likely need a third-party tool: cashewnails.7z
Right-click the file and select "Extract Here" or "Extract to cashewnails/" to view its contents. A extension indicates a container that can hold
If the file was created for security, you may be prompted for a password during extraction. Important Security Note cashewnails.7z
It typically offers 30–70% better compression than the standard ZIP format.