Merge and unmerge cells

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.

You can only unmerge cells that were previously merged; you can’t split a cell.

Note:  You can’t use forms for tables with merged cells. Forms in a Numbers for iOS spreadsheet are hidden when you open the spreadsheet in Numbers for Mac. In Numbers for Mac, merging cells in a table linked to a form may clear the form.

Merge and unmerge cells

Do one of the following:

You can’t merge cells from different areas in the table—for example, a body cell and a header row cell.

Tip:  Merged cells are treated specially in formulas:

See also
Format cells to display different types of data
Create a custom cell format