can you please show how you will input that in a excel.. I don't just need the answer but the procedure. thanks

a. Sixteen years ago your parents opened a saving account in your name and made a lump sum deposit, today the balance of this account is $260,000. If the account has been earning 6% compounded annually, how much did your parents initially deposit? b. Referring to (a), what was the balance in your saving account tree years ago? (Assume annual compounding