i run a small health food shop. I have almost 1000 individual items, from 4 main suppliers, who all have different invoice formats. i get several orders a week from each supplier, with some items supplied by differnet suppliers. as they all have different formats, is there any type of magic excel sheet that automatically transforms the various invoices to the csv that Loyverse needs. do i have to realistically input each item individually? I don't think Loyverse's P.O is up to it.