| merge cell | ||
| collum 1 line 1 | collum 2 line 1 | collum 3 line 1 |
| collum 1 line 2 | collum 2 line 2 | collum 3 line 2 |
| collum 1 line 3 | collum 2 line 3 | collum 3 line 3 |
| collum 1 line 4 | collum 2 line 4 | collum 3 line 4 |
| collum 1 line 4 | collum 2 line 4 | collum 3 line 4 |