WooCommerce stores order data in the WordPress database similarly to how it stores product data, utilizing the existing WordPress database structure along with custom tables and relationships.

Here’s how WooCommerce organizes order data:

• Posts Table (`wp_posts`): Each order is saved as a custom post type called `shop_order` in the `wp_posts` table. This allows WooCommerce to manage orders using the built-in WordPress post management functionality.
• Post Meta Table (`wp_postmeta`): Details about each order (such as order status, billing and shipping information, product details, payment methods, etc.) are stored in the `wp_postmeta` table. Each meta entry is associated with its corresponding order via the post ID.

When an order is created, a new row is inserted in the `wp_posts` table with the following key fields:

• `ID`: The unique identifier for the order.
• `post_type`: Set to `shop_order`.
• `post_status`: Indicates the status of the order (e.g., `wc-pending`, `wc-completed`, etc.).
• `post_date` and `post_modified`: Timestamps for when the order was created and last modified.

The `wp_postmeta` table stores various metadata associated with each order. Some key metadata fields include:

• `_billing_first_name`: Customer's first name.
• `_billing_last_name`: Customer's last name.
• `_billing_address_1`: Primary billing address.
• `_billing_city`: Billing city.
• `_billing_state`: Billing state.
• `_billing_postcode`: Billing postcode.
• `_billing_country`: Billing country.
• `_payment_method`: Method of payment (e.g., PayPal, Direct Bank Transfer).
• `_order_total`: Total amount billed for the order.
• `_line_items`: Details for each product in the order, typically serialized.
• `_shipping_total`: Total shipping cost.
• `_order_currency`: Currency of the order.

WooCommerce may also create additional tables or use relationships for certain features, such as:

• Order Items Table (`wp_woocommerce_order_items`): This table stores the items purchased in each order, where each row represents an individual order item.
• Order Item Meta Table (`wp_woocommerce_order_itemmeta`): This holds metadata for each order item, including product IDs and quantities.

WooCommerce has a predefined set of order statuses (like `pending`, `processing`, `completed`, `cancelled`, etc.) which are stored as part of the post meta. These statuses help manage the order workflow.

As with product data, many WooCommerce extensions or plugins might introduce their own tables or post types to manage additional order-related information, such as customer feedback, order notes, or processing logs.

You can use the software FBL WP Export to export your orders.