Merge method as it applies to the Cell object.
Merges one table cell with another. The result is a single table cell.
expression.Merge(MergeTo)
expression Required. An expression that returns a Cell object.
MergeTo Required Cell object. Cell object to be merged with. Use the syntax .Cell(row , column ).
Merge method as it applies to the Presentation object.
Merges one presentation into another presentation.
expression.Merge(Path)
expression Required. An expression that returns one of the above objects.
Path Required String. The full path of a file to merge with this presentation.
Remarks
This method returns an error if the filename cannot be opened, or the presentation has a baseline.
Example
This example merges the first two cells of row one in the specified table.
With ActivePresentation.Slides(2).Shapes(5).Table
.Cell(1, 1).Merge MergeTo:=.Cell(1, 2)
End With