It is actually quite simple. You just need to make a table in excel showing Opening Balance, adding interest and reducing through payments.This calculator will help you figure out your regular loan payments and it will also create a detailed schedule of payments. Step 1: Set up your amortization table. Open a new Excel sheet and create input cells for the known components of your loan. I'll be showing you how to design an annual amortization scheduled as a loan amortization schedule and a monthly loan amortization schedule. Type the month and year of the first loan payment in cell A8. Note: The purchased version of this document includes a Loan Amortization Schedule Calculator (in Microsoft Excel format). In this case, Microsoft Excel. So far, you have got an overview of the process of Mail-Merge in Excel.