Need help with imported data and how to integrate it with dependency

hei i am wondering how to solve this problam. i have an excel file with 100 data of velocity depending on depth where depth is a variable z for the equation used below. i am going to use this data in Morison equation to find loads of a wave. then integrate with z (depth) to summarize all the load on the column used. the problame here is that i dont know how to make the velocity data depending on z (depth)

here are the 10 first numbers for the excel file so you know the formate.

Depth  Velocity
-100  0
-98.83  0.0117
-97.67  0.0233
-96.5  0.035
-95.33  0.0467
-94.17  0.0583
-93  0.07
-91.83  0.0817
-90.67  0.0933
-89.5  0.105

and the script and formula used are

clear all
clear variables 
clc

%--------------------------------------------------------------------------
d = 100;                  % water depth
a = 15;                   % wave amplitude
g = 9.81;                 % acceleration of gravity             

% Morison equation data
D = 1;         % column diameter 
p = 1025;      % water density
Cm = 2;
Cd = 1.1;
%--------------------------------------------------------------------------

   BC = xlsread('Velocity for stokes 5th order','A:B')    % excel file with data shown above

syms z                 
Fd = ((p*Cd*D)/2)*V.*(abs(V));             % Morison equation used. where V is velocity that are 
                                           % depending on depth z                                       
F = int(Fd,z,-d,a)               % integrate with depth dependency z from surface botum d to wave top a

thanks for any advice and help