Data format used for importing product data into point-of-sale (POS) programs; typically generated from data stored in an Excel spreadsheet (.XLS file); uses a unique syntax structure that identifies line items, and includes remarks and header information; each line item identifies the SKU code, quantity, description, price, and cost of the product.

HSK files are saved in a proprietary file format used for importing data at Huskey Truss & Building Supply. However, the contents of the file can be viewed in a text editor.