Not 100% sure of your description, but this might be what you want:
>> for i=1:3, c{i} = struct('a',i,'b',100+i); end
>> c{:}
ans =
a: 1
b: 101
ans =
a: 2
b: 102
ans =
a: 3
b: 103
>> s = [c{:}]
s =
1x3 struct array with fields:
a
b
>> t = struct2table(s)
t =
a b
_ ___
1 101
2 102
3 103
