Thanks for that Frank.
It doesn't look too complex, just change the values in cells A2 & B2 to get the required distance for a plus elevation shot with the result being shown in C2.
Change the values in cells C5 & D5 for a minus elevation shot with the result being shown in cell E5.
Change the values in cells F2 & G2 for the wind effect with the result being shown in cell H2.
Don't change the values in cells C2, E5 & H2 as those cells contain formulas.
You don't really need the down elevation calculator, as you can just enter a negative elevation value into the up elevation calculator.
EDIT : Excel may block you from making any changes to a downloaded file to start with, if that's the case, click the file tab in Excel, then click the info option in the left pane, then click the enable editing button.