public void SetCellStyle(int k, int mrow, int mcol, string CssStyle)
{
k = k - 1;
string Result = "";
ISheet sheet = wb.GetSheetAt(k);
mrow = mrow - 1;
mcol = mcol - 1;
IRow row = sheet.GetRow(mrow);
if (row == null)
{
row = sheet.CreateRow(mrow);
}
ICell cell = row.GetCell(mcol); //|| (cell.CellType != CellType.String)
if (cell == null)
{
cell = row.CreateCell(mcol);
}
cell.CSS(CssStyle);
}