When creating a Dynamic Product Ad, what file type and format must be used for the product catalog?

When creating a Dynamic Product Ad, the product catalog must be uploaded as either a CSV (Comma Separated Values), TSV (Tab Separated Values), or XML (Extensible Markup Language) file, formatted according to Facebook's specifications. These file types allow you to provide structured data about your products, including details like product ID, name, description, image URL, price, availability, and other relevant attributes. The format should adhere to Facebook's Commerce Manager guidelines, which dictate the required and optional fields and their specific data types. For example, a CSV file would contain product information organized into rows, with each column representing a specific attribute, such as 'id', 'title', 'description', 'image_link', and 'price'.