Step 1 : From dashboard, on the left menu, go to: WooCommerce > Orders
Step 2 : Click the Screen Options button at the top right of the screen.
Step 3 : Make sure the Actions checkbox is checked.
Step 4 : Then, click Apply.
Step 5 : Click the file icon button.
Step 6 : When popup appear, click any desired action button such as email or print.
Note : When the invoice or packing list already email to customer, the check icon will appear at the order list.
