title: How to make a .zip file using zlib
body: <p>I am reading through the document of zlib, and it is fairly detail. But I read upon this line: </p>
  
  <blockquote>
    <p>The output data will be in the <strong>zlib</strong> format, which is different from the gzip or <strong>zip</strong> formats<br>
    <a href="http://www.zlib.net/zlib_how.html" rel="noreferrer">http://www.zlib.net/zlib_how.html</a></p>
  </blockquote>
  
  <p>It seems that zlib creates <strong>zlib</strong> format which is not the same as <strong>zip</strong> format as is discussed in this SO:</p>
  
  <p><a href="https://stackoverflow.com/questions/20762094/how-are-zlib-gzip-and-zip-related-what-are-is-common-and-how-are-they-differen">How are zlib, gzip and zip related? What do they have in common and how are they different?</a></p>
  
  <p>Any body know whether it is possible to create zip format with zlib? and how? </p>