读取组合单元格

         IWorkbook workbook = null;
            FileStream fs = null;
            using (fs = File.OpenRead(path))
            {
                workbook = new XSSFWorkbook(fs);
                ISheet sheet= workbook.GetSheetAt(0);
                int count = sheet.NumMergedRegions;
                for (int i = 0; i < count; i++)
                {
                    var k = sheet.GetMergedRegion(i);
                }
            }