I assume you mean "fields" or "members" rather than folders (like operating system folders where files live).
Why do you want a cell array, with each of the 5 cells containing a single structure? It makes more sense to have a structure array.
Please review the FAQ on cell arrays.
For example, from the documentation:
field1 = 'f1'; value1 = zeros(1,10);
field2 = 'f2'; value2 = {'a', 'b'};
field3 = 'f3'; value3 = {pi, pi.^2};
field4 = 'f4'; value4 = {'fourth'};
s = struct(field1,value1,field2,value2,field3,value3,field4,value4)
s is a 1x2 structure array because value2 and value3 have 2 values.
