cdfread() does not preserve column names.
files = dir('mvn_lpw_*.cdf');
num_files = length(files);
data= cell(1, num_files);
t= cell(1, num_files);
nam=files.name;
for j = 1:num_files
thisfile = fullfile(files(j).folder, files(j).name);
vars = cdfinfo(thisfile).Variables(:,1);
data{j} = cell2table(cdfread(thisfile), 'VariableNames', vars);
end
data %displaying the data