Fortunately, Excel can be used to create an amortization schedule. The amortization schedule template below can be used for a variable number of periods, as well as extra payments and variable interest rates.
Amortization and compound interest are two different ways to calculate interest. Amortization is usually for medium-term financings, such as auto loans. Compound interest is typically for much longer loans, like a 30-year mortgage (it's also possible to get an amortizing or simple interest mortgage).