To install the Extension,

• Go to the Opencart Admin panel.
• On the left navigation bar, point cursor to the Extension & Installation.
  The Extension Installer page appears as shown in the following figure:
• Now you need to click on Upload on the top right corner of the page.
• Choose the package file of Taobao/Tmall marketplace from your system.
• Once selected, click on the Upload this module button.
• The module will be installed and you will be navigated to the Configuration page for further steps to be taken.