1.Double-click on the cell table in the worksheet or document to open it.
2.Select the adjacent cells that you want to merge into one cell by clicking on them while holding down the CTRL key.
3.Use your right mouse button to click on the table and then click Design[Rows and Columns] > Merge Cells.
Note: When merging cells, the cell in the upper left-hand corner of the selected range is enlarged so that it covers all of the other cells. You can use the command Split Cells to undo this step, making the hidden cells visible again.