S_yzip -

You can see what is inside a ZIP file without fully extracting it:

It reduces the total size of data, making it easier to store or transfer over the internet. s_yzip

Every ZIP file contains a Central Directory at the end, which acts as a "map" listing all the files inside. You can see what is inside a ZIP

Individual files within the archive start with a Local File Header , often identified in a hex editor by the signature PK (the initials of creator Phil Katz). How to View Content Without Unzipping s_yzip

A ZIP file is a common archive format used to bundle one or more files and folders into a single compressed package.