The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. This spreadsheet creates an amortization schedule for a fixed-rate loan, with optional extra payments.Use these calculator templates to help you navigate your loans, budgets, net worth, and more. This Excel spreadsheet makes it easy to view the amortization of a home loan with optional extra monthly payments. A biweekly amortization schedule is a table that details your loan payments every two weeks instead of the traditional monthly payment schedule. Create a Loan Amortization Schedule in Excel and include optional extra payments. An easy-to-use amortization calculator. This spreadsheet-based calculator creates an amortization schedule for a fixed-rate loan, with optional extra payments. In this video I provide a clear guide on how to create a loan amortization schedule in Google Sheets and Microsoft Excel. Explore what an amortization schedule in Excel is.