1. Extract the plugin folder and copy the folder into your wp- content/plugins folder.
  2. Log in to your WordPress admin account and click on the Plugins menu on the left.
  3. You should see Offline Credit Cards For WooCommerce in the list of installed plugins. Click on the activate link to enable WordPress.
  4. Upon Activation, you will see a link to click on to enter your License Key to activate the plugin. Enter your license key and your email address that you used when purchasing the plugin
  5.  On the Left Menu, click on WooCommerce -> Settings -> Checkout -> Click on the “Offline Credit Cards” link. You can configure the plugin according to your requirements.