Product prices of the Mercadona supermarket in Spain (November 2023)

The prices of all products that are available online on November 13 on the Mercadona supermarket website in Barcelona, Spain. Since the prices of Mercadona products are supposedly unified in all regions, we assume central Barcelona as a reference point for all of Spain. Mercadona online shop: https://tienda.mercadona.es/categories.
The dataset consists of the following columns: classification, category; sub_category; product_name; product_format; product_price; product_unit.

classification: Product classification can be understood as a higher and more general level than the category. E.g Marisco y pescado
category: The product category. E.g Pescado fresco
sub_category: The subcategory of the product. E.g Salmón
product_name: The name of the product. E.g Filete de salmón, Salmón sin aletas y sin escamas
product_format: The format that the product presents. E.g  Bandeja 400 g aprox., Pieza 2,61 kg aprox., etc.
product_price: The price of the product. E.g 9,58 €
product_unit: The unit of the product. E.g /ud, /pack