How to Split and Merge Cells in Microsoft Word

Splitting Cells
1. Select the table cell or cells you want to split by hovering the mouse pointer over the bottom-left corner of the cell until you see a black diagonal arrow appear. Click once to select just that cell or click and drag to adjacent cells if you want to select multiple cells.
2. Click the 'Layout' tab on the ribbon under the highlighted 'Table Tools' sections.
3. Click the 'Split Cells' button in the Merge group. You will see a 'Split Cells' pop-up window.
4. Enter the number of columns or rows you want. Click 'OK.' The cell or cells you selected will split accordingly.
Merging Cells
5. Highlight multiple, adjacent cells in the table that you want to merge into one cell.
6. Click the 'Layout' tab on the ribbon.
7. Click 'Merge Cells' to merge the cells you selected into a single cell.