Calculate the monthly payments, total interest, and the amount of the balloon payment for a simple loan using this Excel spreadsheet template. In this video I'm going to show you how you can use Microsoft Excel to conduct a fairly straightforward exercise in loan amortization.Use the farm or land loan calculator to determine monthly, quarterly, semiannual or annual loan payments. Get ag-friendly, farm loan rates and terms. This calculator can create a loan amortization schedule given only three of four necessary variables. This calculator figures monthly truck loan payments.