Unmerge Cells
Divides previously merged cells back to the original cells. If the original cells had content that was kept when merged that content is restored.
Split Cells
Displays the Split Cells dialogue box where the split can be defined as either horizontally or vertically and the number the each cell will be split into.
Choose Format - Merge and Unmerge Cells - Unmerge Cells.
Choose Unmerge Cells.
In the Alignment deck of the Properties panel, clear the Merge Cells check box.
Do one of the following:
Choose Table - Split Cells.
Choose Split Cells.
Choose Table - Split Cells.
On the Table deck of the Properties panel, choose Split Cells.
Split Cells Dialogue Box
Enter the number of rows or columns that you want to split the selected cell(s) into.
Direction
Horizontally
Splits the selected cell(s) into the number of rows that you specify in the Split cell into box.
Into equal proportions
Splits cells into rows of equal height.
Vertically
Splits the selected cell(s) into the number of columns that you specify in the Split cell into box.