Step 1: Login to the WordPress admin dashboard
Step 2: Click on WooCommerce
Step 3: Click on Orders
Step 4: Scroll through your orders and find the one that you want to preview.
Step 5: When you look at the line for the order look for the Date column. Next to the date, you will see an icon resembling an eye. Click on the eye. You will see the preview of the order appear in a summary format.