Do not hide indices in the names of variables as in "t1", "t2", ... . See:
- http://www.mathworks.com/matlabcentral/answers/57445-faq-how-can-i-create-variables-a1-a2-a10-in-a-loop
- http://www.mathworks.com/matlabcentral/answers/57446-faq-how-can-i-process-a-sequence-of-files
DirList = dir(fullfile(Folder, '*.mat'));
Data = cell(1, length(DirList));
for k = 1:length(DirList)
Data{k} = load(fullfile(Folder, DirList(k).name));
end