BreakSideBySide Method
Ends side-by-side mode if two windows are in side-by-side mode. Returns a Boolean value that represents whether the method was successful.
expression.BreakSideBySide()
expression Required. An expression that returns one of the objects in the Applies To list.
Example
The following example ends side-by-side mode.
Sub CloseSideBySide()
ActiveWorkbook.Windows.BreakSideBySide
End Sub