To understand why "rounds" of zipping work, it helps to know the basics of how ZIP files operate :
Zip Files: History, Explanation and Implementation - hanshq.net File: Rounds.zip ...
In the context of complex ZIP structures, "rounds" typically refers to the process of —zipping a ZIP file repeatedly to achieve extreme file size reductions. To understand why "rounds" of zipping work, it
: ZIP typically compresses each file individually before "taping" them together into a single archive, which allows you to extract one specific file without decompressing the whole package. Security and Practicality File: Rounds.zip ...
: The format identifies frequently occurring patterns (bytes) and replaces them with shorter bit sequences.