HSK - Huskey Truss & Building Supply Import File is a file extension that is mainly used for importing product data right into a point of scale program. If you are using these programs then you should definitely make use of this extension the best way that you can. They are generated typically from stored data right into an excel spreadsheet.
This extension is wonderful because it uses a structure that is really unique in its own little way. There are ways that you can define what is what when using this wonderful extension. It also consists of both header information and even remarks that uses SKU codes to identify price, description, and even quantity.
You should be aware of how the HSK files are saved as well because they are all in a proprietary file format which is used for importing information right to Huskey Truss and Building Supply. You will not be able to view any of the information from these files in a text editor, so you should be aware of that.
If you want to make use of the extension, you can because it is definitely worth it. You need to make sure that you are using compatible files or it will not really do you any good.