please solve it by excel and show calculation formula

Maturity (years) Zero rate (continuous compounding) 0.5 5.0% 1.0 5.8% 1.5 6.4% 2.0 6.8% Using the four zero rates from the Sample Zero Rates slide, use Goal Seek to find the Par Yield of a two year maturity semi-annual bond. Hint: Discount each cash flow using the appropriate zero rate, calculate the price, and then find the coupon that sets this price equal to $100 using Goal Seek