Issue with matrix dimensions

I am getting and error "index exceeds matrix dimension". I am just loading a .mat file which has 2 equal sized coloums and placing the values of each coloum in a varialble. I did not define an index, for example to loop over the matrix. Any ideas why I get this error ?

 mu_Au = 0;
 mu_Si = 0;
 k_B = 8.6173303e-5;
 T = 300;
 e0= 1.6021766e-19;
 h = 6.62607e-34;

 func_fermi = @(E,mu) 1./(1 + exp((E-mu)/(k_B*T)));

 TE1 = load('TransmissionA1.mat'); 
 E = TE1(:,1); TP = TE1(:,2);

Answer 1

[KSSV]

   TE1 = load('TransmissionA1.mat');

Check TE1 will be a structure. You cannot access it like you did. Try:

   S = load('TransmissionA1.mat'); 
   TE1 = S.TE1 ; 
   E = TE1(:,1); TP = TE1(:,2);

[Mohammed Darwish]

Thank you KSSV !!