Please normalize to 1NF:

StoreNo, RcptNo->Date, EmpNo, EmpName

StoreNo, RcptNo, ItemNo->Qty, Price

ItemNo->ItemName

EmpNo->EmpName

StoreNo->Taxrate, Address, State, Zip

FlatFile [StoreNo, RcptNo, Date, EmpNo, EmpName, ItemNo₁, Qty₁, Price₁, ItemName₁ ItemNo_n, Qty_n, Price_n, ItemName_n, Taxrate, Address, State, Zip]

This problem describes a typical grocery checkout situation. We own multiple stores, and we generate receipt numbers that are unique only within the store. Receipts have dates. Every receipt is generated by a store employee that has an employee number and a name. The tax rate, address, state and zip code are found on the receipt. On the receipt detail line, we have the item number, item name, qty and price. The item name is identified by the item number.