The installation process for Joomla extensions is the same as that for the templates. Begin by downloading the extension package from the JoomShaper site. It includes the component and the module inside. 

From your Joomla dashboard, navigate to Systems > Install section > Extensions. Choose the Upload Package File tab. Now, you can drag and drop the zip file of the SP Polls extension or browse your device to upload the zip file. It will then automatically install the extension.

Once installed you can locate the SP Polls component on your Joomla dashboard’s Components.