How to import multiple .mat files to the workspace?

Hello,

I have 72 no. of .mat files at a location (as in the path in code) which is not possible to import manually. Hence I tried to use the code as below. But it gives an error and is unable to import the same.

files = dir('D:\Rahul\Data_tokamak\data&plot\data_paper1\H-mode data\H-mode bistable model\set1_neoAno_ratio_10\beta0.01\Contourplot\*.mat');

for i=1:length(files)
  load(files(i).name);
end   

ERROR:

Error using load

Kindly advice.

rgds

[Stephen23]

Duplicate:

https://www.mathworks.com/matlabcentral/answers/2112646-how-to-import-multiple-mat-files-to-workspace