Inserts a horizontal page break in the worksheet after the specified cell.

 public void InsertHorizontalPageBreak(Cell afterCell)
Public Sub InsertHorizontalPageBreak(ByVal afterCell As Cell)

A Cell object representing the cell at which to insert a horizontal page break.

ws.InsertHorizontalPageBreak(ws.Cells["A25"]);
ws.InsertHorizontalPageBreak(ws.Cells("A25"))