(Please show me how to do it in excel)

Suppose that you just turned thirty years old today, and it just dawned on you that you now must start to plan for retirement. You believe that you will retire when you turn 65. To fund your retirement account, you plan to make yearly contributions, with the first one happening one year from today. Your first payment into this account will be $8,000. You expect to increase this deposit by 5% each year until you reach age 65. Assume that the rate of interest is 7%.

a. What is the present value (at age 30) of your retirement savings?
b. What is the future value at retirement (age 65) of your savings?