The fastest way to install Overline is through the WordPress administration dashboard.
- Go to: Appearance > Themes > Add New / Upload Theme
- Upload the overline.zip file you have downloaded from WooCommerce.com
- Activate as you would any other WordPress theme then proceed with the Setup and Configuration.
To install Overline manually:
- Download the latest version of Overline from WooCommerce.com
- Upload the extracted folder to the
/wp-content/themes/dir on your server via FTP.
- Activate Overline from the Appearance > Themes screen in your dashboard.
More info at Using Themes.