Matrix, Table & Grid Forms

MatrixForm[Array[Subscript[A,##] &,{5,5}]]
TableForm[{{2,3,4},{5,6,7}},
TableHeadings -> {{"row a", "row b"},
{"column x", "column y","column z"}}]
Style[Grid[{{1, 2, 3},{4, 5, 6},{7, 8, 9}},
Background ->{{LightRed,None,Pink},{None,LightBlue, None}},
                        Dividers->All],FontSize->32]