Followed is a step-by-step guidance procedure that explains with details on how to decompress the downloaded ZIP file of Opencart from the downloads page of this site without uploading the files one-by-one on the FTP: http://www.inmotionhosting.com/support/ ... sing-files which can be extracted very easily and rapidly.
This console can be used with cPanel.
As for Plesk, here's a screenshot:
