Suppose, you have installed WordPress. If you do not know how to install WordPress, contact your hosting provider or see the document

• Log in to the WordPress Dashboard
• Navigate to the Plugins → Add New → Upload Plugin;
• Click on Choose File and select the zipped file named smart-post-show-pro;
• Click on Install Now; When done, click on Activate Plugin.
•  After activating the Smart Post Show Pro plugin, you are ready to display the smart post-show shortcode in your post, page, widget, or anywhere you like.