Check out example codes for "what are benefits of zip files". It will help you in understanding the concepts better.

Code Example 1

Zip files (. zip or . zipx) are single files, 
 sometimes called "archives", that contain one 
 or more compressed files. 
 Zip files make it easy to keep related files 
 together and make transporting, e-mailing, 
 downloading and storing data and software faster and more efficient.

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