...
You can export a list of your orders by clicking on the "Export" button at the top.
You cannot import orders.
Creating an Order
One of the features of PrestaShop is the ability to create an order directly from the back office. For instance, this is tremendously useful when a customer wants to buy a product but does not succeed, and you need to take the hand and make the order while on the phone or during an e-mail conversation with the customer.
...