1)   WordPress Plugin Uploader

1.    Log into your WordPress admin panel
2.    Navigate to Plugin -> Add New
3.    Click Upload.
4.    Click Choose File and select the WooCommerce Shipping Pro for UPS plugin package zip.
5.    Click Install Now.
6.    Complete the installation process as directed by WordPress and Activate the plugin.

OR

2)   FTP

1.    Decompress the .zip file you downloaded from Codecanyon.
2.    Find the WooCommerce Shipping Pro for UPS folder (this directory is created when you unzip the file).
3.    Upload the WooCommerce Shipping Pro for UPS folder to wp-content/plugins directory.
4.    Navigate to your Control Panel: Plugins.
5.    Under WooCommerce Shipping Pro for UPS, click Activate l Panel: Plugin.

After the installation& activation of the plugin, you will have UPS menu in the Wocommerce Settings as well as you can visit setting from the installed plugin

OR