Merging table cells combines adjacent cells into a single cell. You can unmerge cells as well, and all the data is retained in the new top-left cell.
Note: You can only unmerge cells that were previously merged; you can’t split a cell.
Merge cells: Select two or more cells, then tap Merge.
These are the results of merging cells:
If only one of the cells contains content prior to merging, the merged cell retains the content and formatting of that cell.
If multiple cells contain content before merging, all the content is retained, but cells with a specific data format, such as numbers, currency, or dates, are converted to text.
If a fill color is applied to the top-left cell, the merged cell takes on that fill color.
Unmerge cells: Select the cell, then tap Unmerge.
All of the content from the previously merged cell is added to the first unmerged cell.
You can’t merge cells from different areas in the table—for example, a body cell and a header row cell.