Please show excel formula.

You have worked in Canton Corporation for the last five years and have a more optimistic view of the firm's future FCFs. In your personal/professional opinion, Canton could generate $4 million FCF next year, $4.5 million in year two, $5 million in year three, $5.5 million in year four, $6 million in year five, and then maintain a FCF of $ 6.8 million for the indefinite future. If your estimates were correct, what is the value of the firm's future cash flows at 12% cost of capital?