Finance-How would I set these problems up using Excel

How would I set these problems up using Excel?Value a Constant Growth Stock, Financial Analyst forecast Safeco Corp’s (SAF) growth rate for the future to be 8%. Safeco’s recent dividend was 0. 88. What is the value of Safeco stock when the required return is 12%? (LG8-5)Variable Growth 8-33 FinanceA fast growing firm recently paid a dividend of . 40 per share. The dividend is expected to increase at a 20% rate for the next 3 years. Afterwards, a more stable 12% growth rate can be assumed. If a 13% discount rate is appropriate for this stock, what is it’s value? (LG8-6) How would I calculate this question using Excel??