WooCommerce Bulk Order Product Count

On the WooCommerce Orders page, check each order you want to export the product count for, and then on the Bulk Actions drop down, select Orders Product Count and press Apply.

A PDF document will then be generated with your orders product count.

Here is an example on how to display the product price in the PDF. Add the following to your theme functions.php file:

function wcopcpdf_columns( $columns ) {
    // Remove the thumbnail column
    unset( $columns['thumbnail'] );

    // Add a column for product price
    $columns['price'] = array(
        'label' => 'Price',
        'size'  => '15%',
        'callback' => 'wcopcpdf_column_price' // Callback uses the function named below
    );

    return $columns;
}
add_filter( 'wc_order_product_count_columns', 'wcopcpdf_columns' );

if( ! function_exists( 'wcopcpdf_column_price' ) ) {
    /**
    * Callback to display the product price
    *     
    * @param int $product_id
    * @param int $quantity
    * @param array $orders
    * @param WC_Product $product
    */
    function wcopcpdf_column_price( $product_id, $quantity, $orders, $product ) {
        return wc_price( $product->get_price() );   
    }
}