Export delivery date and time

So far the plugin is working, and I have used your supplied code to add Order Date (thanks for that information!), but I can’t seem to get two important bits of information to be exported: Delivery Date and Delivery Time. Both of these fields are generated using another plugin called Delivery Slots. Below are the meta keys for these fields:

// add date data to the order
			if ($_POST['jck_delivery_date'] && $_POST['jck_delivery_date'] != '') {
				update_post_meta( $order_id, $this->slug.'_date', esc_attr($_POST['jck_delivery_date']));
				$date = true;
			}

// add time data to the order
			if ($_POST['jck_delivery_time'] && $_POST['jck_delivery_time'] != '') {
				update_post_meta( $order_id, $this->slug.'_timeslot', esc_attr($this->convertTimesFromId($_POST['jck_delivery_time'])));
				$time = true;
			}

Is it possible to export these data?

https://www.ads-software.com/plugins/woocommerce-simply-order-export/