The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. Create automatic loan amortization schedule table with PMT, IPMT, PPMT formulas in Microsoft ExcelLoan amortization schedule. 3. 4, Enter values, Loan summary. This calculator will help you figure out your regular loan payments and it will also create a detailed schedule of payments. This Excel spreadsheet makes it easy to view the amortization of a home loan with optional extra monthly payments. Create a Loan Amortization Schedule in Excel and include optional extra payments. An easy-to-use amortization calculator. To play with the numbers, I developed a mortgage amortization spreadsheet. And finally, you'll get a dollar amount for total interest savings under a biweekly payment plan.