Presumably all the files have the same number of rows. Otherwise, you need to specify what to do with the extra rows in some of the files.
filenames = compose('file%d.csv', 1:6); %name of files to open. Generated however you want. Possibly with dir
filedata = cell(1, numel(filenames)); %cell array to receive arrays of unknown size
%read the content of all the files:
for fileidx = 1:numel(filenames)
filedata{fileidx} = csvread(fullfile('C:\somewhere', filenames{fileidx})); %read the file. May need something other than csvread depending on the file
end
%concatenate and permute into desired shape:
filedata = cat(3, filedata{:}); %concatenate into 3D array. Will error if the files are not all the same size
filedata = permute(filedata, [3 2 1]);
The resulting filedata is a numfiles x numcolumns x numrows matrix, so in your case 6 x 3 x unknownnumber. You could split this into a cell array of 6x3 matrices if you really desire:
filedata = squeeze(num2cell(filedata, [1 2])); %cell array of numfiles x numcolumns matrices
