: This is simply the custom name given to the archive by the creator (e.g., "Update", "Upload", or a project codename like "University Project").
: When creating or extracting the file, the software can use multiple cores of your computer's CPU simultaneously to get the job done faster. : This is simply the custom name given
: This is the file extension that tells your operating system to use an archive manager to read it. : This is simply the custom name given