Get the inner elements of a 2D list

Hello Guys,
Maybe anyone can help me.
I have a 2D list {{“A0”,“A1”,“A2”,“A3”},{“B0”,“B1”,“B2”,“B3”},{“C0”,“C1”,“C2”,“C3”},{“D0”,“D1”,“D2”,“D3”}};

2017-04-16 inner elements.dyn (4.0 KB)

It represents a kind of 4x4 matrix.
In general form I need NxN matrix.
I need to get the inner elements of the list: 1.1, 1.2, 2.1, 2.2. In general form of N elements:
1.1, 1.2 … 1,N-1

N.1, N.2 … N.N-1

How do I do it?
I tried making a list like this i[{1,2}][{1,2}]; but I get something weird.

InnerElements.dyn (3.7 KB)


Thanks, man!

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