how do we find portfolio standard deviation and portfolio return using excel? Let's say we have these 5 stocks :

EMA

FTT

T

SAP

LB

And their expected returns and standard deviations are respectively:

return	stock std dev
0.0128271	0.0364705
0.0039463	0.0710933
0.0085713	0.0336428
0.0096578	0.0524817
0.0044607	0.0468692

Their covariance matrix is below as well:

0.017408481	-0.00036693	0.000495133	0.000415741	9.59576E-05
-0.00036693	0.00335971	0.000102459	0.000255565	0.000940235
0.000495133	0.000102459	0.00296511	0.000383832	0.000195049
0.000415741	0.000255565	0.000383832	0.033423186	-0.00021245
9.59576E-05	0.000940235	0.000195049	-0.00021245	0.006809115

The weights are all equally weighted (0.2 for all 5 stocks in 1 portfolio)

So with these knowledge, how do we find the portfolio return and portfolio standard deviation of this portfolio?