The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. Download a Loan Amortization Table spreadsheet for Excel to create your own amortization schedule, table, or calculator.Free amortization spreadsheet. The great thing about Microsoft Excel's Loan Amortization spreadsheet is that it's FREE. Free template with formulas. Mortgage calculator with amortization schedule. Principal, Amortization months. Help. An amortization schedule template basically outlines the detail of a loan in a very specialized way.