1) Login to cPanel and click on File Manager.
2) Double click on the target path e.g. /public_html whereby the compressed .zip file is located e.g. tutorial.zip
3) Click on the target zip file once and press the "Extract" button. 
4) A new pop up will appear and asking where shall we place the extracted file. In this example, I'll be extracting the .zip content
to /public_html/storage path as seen from the highlighted area.
Press the Extract File(s) button to begin the extraction process.
NOTE: The compressed files available for extraction are .ZIP, .Tar Archive, .GZiped Archive and Bzip2ed format.
