Download stock prices for two stocks (Yahoo finance, Tadawul, Google finance) for 10 years.

I need it in a microsoft excel.
1.Download stock prices for two stocks (Yahoo finance, Tadawul, Google finance) for 10 years.
2.Compute the returns, expected returns, variances, autocorlations, and covariances.
3.Compute and plot the utility functions and the indifference curves for each stock assuming risk aversion parameters 3 and 4.
4.Construct and plot the Minimum Variance Set.
5.Compute sharp ratio and determine the optimal portfolio.
6.Construct the capital market line
Compute all for 10 years.
Choose any two in the stock market. US or Saudi Arabia.