wordpress product categories with menu


i have an eCommerce website now i need to switch my data to a new one. i only want to export my category menu and product categories with its child categories and import into new wordpress website. i have tried all available plugins i can found but found no solution i have successfully exported menu and imported it into new website and now i need to move my product categories as i have more than 2000 categories including subcategories to 3rd level. please help me as soon as possible