Hello, I am using MATLAB 2017b. I have two Excel.xlsx files, call them A and B, containing time vs. instrument signals under two different conditions. I would like treat the columns of A and B as variables for performing further operations such division in the Fourier domain. The first column in A.xlsx is "t" and second column "S", and the first column in B.xlsx as X and second one as S0. I checked from the web and youtube videos to use xlsread, how do you assign a variable name to a particle column in MATLAB. Thanks.