Download a Loan Amortization Table spreadsheet for Excel to create your own amortization schedule, table, or calculator. Free amortization spreadsheet.Loan Amortization Schedule outlines the interest and principal payments owed on a mortgage, including the outstanding balance. The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. Almost any data field on this form may be calculated. To use our amortization calculator, type in a dollar figure under "Loan amount. This calculator will help you figure out your regular loan payments and it will also create a detailed schedule of payments. NerdWallet's early mortgage payoff calculator figures out how much more to pay.