This is a CSV file, like an excel file but slightly different, which allows you to upload information to Amazon and the products you want to sell. On this file, you can include things such as your SKU, ASIN, QTY, sell price, VAT Rate, Hazmat Status and many more. The Ultimate Sourcing Sheet automatically creates this listing loader file for you, allowing you to upload and create hundreds of products in Amazon with a few simple mouse clicks rather than hours doing it manually.