/// <summary>
///
/// </summary>
/// <param name="table"></param>
/// <param name="header"></param>
/// <param name="subheader"></param>
/// <param name="startColumn"></param>
/// <param name="columnOffset"></param>
/// <param name="colWidth"></param>
/// <param name="merge"></param>
/// <returns></returns>
public static CellRange AddHeader(this TabalimTable table, string header, string subheader,
int row, int startColumn, int columnOffset, double colWidth = COLUMNWIDTH)
{
table.Write(header, row, startColumn + columnOffset, columnWidth: colWidth);
table.Table.Cells[row, startColumn + columnOffset].TextHeight = HEADER_TEXTHEIGHT;
table.Write(subheader, row + 1, startColumn + columnOffset);
table.Table.Cells[row + 1, startColumn + columnOffset].TextHeight = SUB_HEADER_TEXTHEIGHT;
return(CellRange.Create(table.Table, row + 1, startColumn + columnOffset, row + 2, startColumn + columnOffset));
}
