Unrest cell of cells

Suppose I have a 1x2 cell of cells, I want to reshape the cell to a 2 x 3 cell. How can I do?

For example, the original cell is

test_cell={{1,2,3};{2,3,4}};
% we want
%   2×3 cell array
% 
%     {[1]}    {[2]}    {[3]}
%     {[2]}    {[3]}    {[4]}

Answer 1

[KSSV]

test_cell={{1,2,3};{2,3,4}};
reshape([test_cell{:}],3,2)'

ans = 2×3 cell array
    {[1]}    {[2]}    {[3]}
    {[2]}    {[3]}    {[4]}

[Shunan Sheng]

Thanks!!