1 IWorkbook workbook = new XSSFWorkbook(); 2 ISheet sheet = workbook.CreateSheet("-"); 3 IRow row = sheet.CreateRow(0);//标题 4 5 IRow titleRow = row.CreateCell(0); 6 Row.SetCellValue("标题列1"); 7 8 IRow dataRow = sheet.CreateRow(1); 9 dataRow.CreateCell(0).SetCellValue(“第一行第一列数值”); 10 11 string fileName = "demo.xlsx"; 12 13 FileStream file = new FileStream("C:\Desktop\" + fileName, FileMode.Create);//把这个HSSFWorkbook实例写入文件 14 workbook.Write(file); 15 file.Close(); 16 17 /*如果此处要下载*/ 18 //MemoryStream ms = new MemoryStream(); 19 //workbook.Write(ms);