Online Documentation for Advanced Data Export .NET
public XlsMergedCells AddMergedCells(ushort FirstRow, ushort LastRow, ushort FirstCol, ushort LastCol)
The AddMergedCells method allows you to merge cells in the defined ranges to one cell. The row ranges are set by the FirsRow and the LastRow parameters. The column ranges are set by the FirstCol and the LastCol parameters. These parameters are 1-based. The returned value is the XlsMergedCells object.