Installing the plugin is very easy, you’ll see.
There are two ways to install a WordPress Plugin:
Directly upload the zipped plugin file via the WordPress admin
By uploading the unzipped plugin folder containing all the plugin files directly on your server using an FTP client.
Option 1 – Using WordPress Installer (recommended)
Log in to your WP Admin Panel and open the Plugins panel
Click ‘Add new’ and follow the instructions
When asked to select a file, choose the envato-demo-bar.zip file
After uploading the Plugin to your server, Click ‘Activate’
Option 2 – Installation via FTP Client Software
Extract the .ZIP archive from Codecanyon to a local folder on your PC. It should contain a subfolder named envato-demo-bar.zip
Upload unzipped ‘envato-demo-bar‘ folder from Plugins folder to the ‘/wp-content/Plugins/’ directory using your favorite FTP client software
Make sure you have setup Transfer Mode – Binary, because files can be broken upon transfer with ASCII mode
Login to your WordPress admin dashboard, go to Plugins