Please show any calculations in excel!! $($Need help quick, will like$)$

Problem $7\mathrm{.}4$ Kapinsky Capital $($A$)$

Christoph Hoffeman trades currency for Kapinsky Capital of Geneva. Christoph has $$10$ million to begin with, and he must state all profits at the end of any speculation in U$.$S$.$ dollars. The spot rate on the euro is $$\frac{1\mathrm{.}3358}{},$ while the $30-$day forward rate is $$\frac{1\mathrm{.}3350}{}.$

a$.$ If Christoph believes the euro will continue to rise in value against the U$.$S$.$ dollar, so that he expects the spot rate to be $$\frac{1\mathrm{.}3600}{}$ at the end of $30$ days, what should he do$?$

b$.$ If Christoph believes the euro will depreciate in value against the U$.$S$.$ dollar, so that he expects the spot rate to be $$\frac{1\mathrm{.}2800}{}$ at the end of $30$ days, what should he do$?$