The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. 13, Payment number, Payment date, Beginning balance, Scheduled payment, Extra payment, TotalThis Excel spreadsheet makes it easy to view the amortization of a home loan with optional extra monthly payments. This spreadsheet creates an amortization schedule for a fixed-rate loan, with optional extra payments. Make math easier with these free calculator templates. Want to know the impact of "extra payments" on your mortgage? Check out this easy to use Excel mortgage calculator.