find the standard deviation of the portfolio in excel?

Portfolio Weight on WMT 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Weight on V 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 SECTION 4 SECTION 5 = 2 SECTION 6 = 2 2 MARKS MARKS MARKS SECTION 7 = 2 MARKS Portfolio Portfolio Standard Portfolio Nature: Return Portfolio Beta Deviation**** Defensive/Aggressive 0.0194 -0.6328 defensive 0.0185 -0.7394 defensive 0.0175 -0.8461 defensive 0.0166 -0.9527 defensive 0.0157 -1.0594 defensive 0.0148 - 1.1660 defensive 0.0139 -1.2727 defensive 0.0129 -1.3793 defensive 0.0120 -1.4860 defensive 0.0111 -1.5926 defensive 0.0102 -1.6992 defensive