1.例子导出Excel的样式

public void Exportdatagridviewtoexcel(string Textname){SaveFileDialog savedialog = new SaveFileDialog();savedialog.DefaultExt = "xlsx";savedialog.Filter = "microsoft office execl files (*.xlsx)|*.xlsx";savedialog.FilterIndex = 0;savedialog.RestoreDirectory = true;savedialog.Title = "导出数据到excel表格";savedialog.ShowDialog();if (savedialog.FileName.IndexOf(":") < 0) return; //被点了取消  //Microsoft.office.interop.excel.application xlapp = new microsoft.office.interop.excel.application();Microsoft.Office.Interop.Excel.Application xlapp = new Microsoft.Office.Interop.Excel.Application();if (xlapp == null){MessageBox.Show("可能您的机子未安装excel，无法创建excel对象！", "系统提示 ", MessageBoxButtons.OK, MessageBoxIcon.Error);return;}Microsoft.Office.Interop.Excel.Workbooks workbooks = xlapp.Workbooks;Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1  string ADD = "盘点录入明细表  时间：" + DateTime.Now.ToShortDateString();worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 7]).MergeCells = true;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 7]).Font.Bold = true;//
                worksheet.Cells[1, 1] = " " + Textname;worksheet.Cells[2, 1] = "" + "使用科室";worksheet.get_Range(worksheet.Cells[2, 2], worksheet.Cells[2, 3]).MergeCells = true;worksheet.get_Range(worksheet.Cells[2, 5], worksheet.Cells[2, 7]).MergeCells = true;//worksheet.Cells[2, 5] = "" + "年月日";worksheet.Cells[3, 1] = "患者姓名";worksheet.Cells[3, 2] = " ";worksheet.Cells[3, 3] = "性别";worksheet.Cells[3, 4] = " ";worksheet.Cells[3, 5] = "年龄";worksheet.Cells[4, 1] = "住院号";worksheet.Cells[4, 2] = " ";worksheet.Cells[4, 3] = "床位号";worksheet.Cells[4, 4] = " ";worksheet.Cells[4, 5] = "手术名称";worksheet.Cells[5, 1] = "使用部位";worksheet.Cells[5, 2] = " ";worksheet.Cells[5, 3] = "手术日期";worksheet.Cells[5, 4] = " ";worksheet.Cells[5, 5] = "医保类型";worksheet.get_Range(worksheet.Cells[3, 6], worksheet.Cells[3, 7]).MergeCells = true;worksheet.get_Range(worksheet.Cells[4, 6], worksheet.Cells[4, 7]).MergeCells = true;worksheet.get_Range(worksheet.Cells[5, 6], worksheet.Cells[5, 7]).MergeCells = true;worksheet.Cells[5, 6] = " ";worksheet.Cells[4, 6] = " ";worksheet.Cells[3, 6] = " ";worksheet.Cells[6, 1] = "生产厂家";worksheet.get_Range(worksheet.Cells[6, 2], worksheet.Cells[6, 3]).MergeCells = true;worksheet.Cells[6, 4] = "注册证号";worksheet.get_Range(worksheet.Cells[6, 5], worksheet.Cells[6, 7]).MergeCells = true;worksheet.Cells[7, 1] = "生产日期";worksheet.Cells[7, 2] = " ";worksheet.Cells[7, 3] = "灭菌日期";worksheet.Cells[7, 4] = " ";worksheet.Cells[7, 5] = "有效日期";worksheet.get_Range(worksheet.Cells[7, 6], worksheet.Cells[7, 7]).MergeCells = true;worksheet.Cells[7, 6] = " ";worksheet.Cells[8, 1] = "供货单位";worksheet.get_Range(worksheet.Cells[8, 2], worksheet.Cells[8, 3]).MergeCells = true;worksheet.Cells[8, 4] = "供货商签字";worksheet.Cells[8, 5] = " ";worksheet.Cells[8, 6] = "联系电话";worksheet.Cells[8, 7] = " ";worksheet.Cells[9, 1] = "产品名称";worksheet.Cells[9, 2] = "规格型号";worksheet.Cells[9, 3] = "产品批号";worksheet.Cells[9, 4] = "单价";worksheet.Cells[9, 5] = "数量";worksheet.Cells[9, 6] = "单位";worksheet.Cells[9, 7] = "金额    ";worksheet.Cells[10, 1] = " ";worksheet.Cells[10, 2] = " ";worksheet.Cells[10, 3] = " ";worksheet.Cells[10, 4] = " ";worksheet.Cells[10, 5] = " ";worksheet.Cells[10, 6] = " ";worksheet.Cells[10, 7] = " ";worksheet.Cells[11, 1] = " ";worksheet.Cells[11, 2] = " ";worksheet.Cells[11, 3] = " ";worksheet.Cells[11, 4] = " ";worksheet.Cells[11, 5] = " ";worksheet.Cells[11, 6] = " ";worksheet.Cells[11, 7] = " ";worksheet.Cells[12, 1] = " ";worksheet.Cells[12, 2] = " ";worksheet.Cells[12, 3] = " ";worksheet.Cells[12, 4] = " ";worksheet.Cells[12, 5] = " ";worksheet.Cells[12, 6] = " ";worksheet.Cells[12, 7] = " ";worksheet.Cells[13, 1] = " ";worksheet.Cells[13, 2] = " ";worksheet.Cells[13, 3] = " ";worksheet.Cells[13, 4] = " ";worksheet.Cells[13, 5] = " ";worksheet.Cells[13, 6] = " ";worksheet.Cells[13, 7] = " ";worksheet.Cells[14, 1] = "高值耗材使用医生签字";worksheet.Cells[14, 5] = "手术护士";worksheet.Cells[14, 6] = "  ";worksheet.Cells[14, 7] = "  ";worksheet.get_Range(worksheet.Cells[14, 6], worksheet.Cells[14, 7]).MergeCells = true;worksheet.get_Range(worksheet.Cells[14, 1], worksheet.Cells[14, 3]).MergeCells = true;worksheet.Cells[15, 1] = "收费人员（记账人员）签字";worksheet.Cells[15, 5] = "收费价格";worksheet.Cells[15, 6] = "  ";worksheet.Cells[15, 7] = "  ";worksheet.get_Range(worksheet.Cells[15, 6], worksheet.Cells[15, 7]).MergeCells = true;worksheet.get_Range(worksheet.Cells[15, 1], worksheet.Cells[15, 3]).MergeCells = true;worksheet.Cells[16, 1] = "科室负责人签字";worksheet.Cells[16, 3] = " ";worksheet.Cells[16, 4] = " ";worksheet.Cells[16, 5] = "设备采购签字";worksheet.Cells[16, 6] = " ";//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 10]).Text = ADD;worksheet.get_Range(worksheet.Cells[16, 1], worksheet.Cells[16, 2]).MergeCells = true;worksheet.get_Range(worksheet.Cells[16, 5], worksheet.Cells[16, 6]).MergeCells = true;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 8]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;//worksheet.get_Range(worksheet.Cells[3, 1], worksheet.Cells[3, 8]).Font.Bold = true;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 8]).Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeLeft].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThick;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 8]).Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeRight].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThick;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 8]).Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeTop].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThick;//worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[2, 8]).Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeBottom].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThick;worksheet.Cells[17, 1] = "高值耗材唯一性标示";//worksheet.get_Range(worksheet.Cells[17, 1], worksheet.Cells[17, 1]).VerticalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter; worksheet.get_Range(worksheet.Cells[17, 1], worksheet.Cells[27, 1]).MergeCells = true;worksheet.get_Range(worksheet.Cells[17, 2], worksheet.Cells[27, 7]).MergeCells = true;worksheet.get_Range(worksheet.Cells[17, 1], worksheet.Cells[27, 1]).WrapText = true;//  worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[27, 7]).Borders.Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 7]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;if (savedialog.FileName != ""){try{workbook.Saved = true;workbook.SaveCopyAs(savedialog.FileName);}catch (Exception ex){MessageBox.Show("导出文件时出错,文件可能正被打开！..." + ex.Message, "系统提示 ", MessageBoxButtons.OK, MessageBoxIcon.Error);}}//GC.Collect();//强行销毁  MessageBox.Show("数据导出成功！ ", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);}

Excel.Range r =mySheet.get_Range(mySheet.Cells[1,1],mySheet.Cells[DT.Rows.Count + 2,DT.Columns.Count - 3]);r.NumberFormat="@";  //设置单元格格式为文本类型，文本类型可设置上下标

r.NumberForma="0.00_ "//设置单元格格式为数值类型，小数点后2位

r.NumberForma="￥#,##0.00;￥-#,##0.00"//设设置单元格格式为货币类型，小数点后2位

r.NumberForma=_"_ ￥*#,##0.00_;_ ￥*-#,##0.00_ ;_ ￥*""-""??_;_ @_ "//置单元格格式为会计专用类型，小数点后2位

r.NumberForma="yyyy-m-d"//设置单元格格式为日期类型

r.NumberForma="[$-F400]h:mm:ss AM/PM"//设置单元格格式为时间类型

r.NumberForma="0.00%"//设置单元格格式为百分比类型，小数点后2位

r.NumberForma="# ?/?"设置单元格格式为分数类型，分母为一位数r.NumberForma="0.00E+00"//设置单元格格式为科学技术类型，小数位数为2

r.NumberForma="000000"//设置单元格格式为特殊类型

B、上下标格式的控制；mySheet.get_Range(mySheet.Cells[i+3, DT.Columns.Count - 3],mySheet.Cells[i + 3, DT.Columns.Count -3]).get_Characters(a.Length+ 1,b.Length).Font.Subscript =true;//控制输出样式为下标

mySheet.get_Range(mySheet.Cells[i+3, DT.Columns.Count - 3],mySheet.Cells[i + 3, DT.Columns.Count-3]).get_Characters(a.Length + b.Length+ 1, c.Length).Font.Superscript =true; //控制输出样式为上标

C、单元格水平垂直对齐方式；//单元格水平，垂直居中

r.HorizontalAlignment=Excel.XlHAlign.xlHAlignCenter;r.VerticalAlignment=Excel.XlVAlign.xlVAlignCenter;上面代码中，枚举XLHAlign的值还有：// 右对齐

xlHAlignRight,// 左对齐.

xlHAlignLeft,// 两端对齐.

xlHAlignJustify,// 分散对齐(缩进)

xlHAlignDistributed,// 居中对齐

xlHAlignCenter,// 依照数据类型对齐,常规

xlHAlignGeneral,// 填充

xlHAlignFill,// 跨列对齐.

xlHAlignCenterAcrossSelection=7,枚举XLVAlign的值还有：// 靠上对齐

xlVAlignTop,//两端对齐.

xlVAlignJustify=-4130,//分散对齐.

xlVAlignDistributed,//居中对齐.

xlVAlignCenter,//靠下对齐.

xlVAlignBottom=-4107,D、 单元格边框设置；//设置边框

Excel.Range r =mySheet.get_Range(mySheet.Cells[1,1],mySheet.Cells[DT.Rows.Count + 2,DT.Columns.Count - 3]);r.Borders.LineStyle=Excel.XlLineStyle.xlContinuous;枚举XlLineStyle中还有下面线形：//没边框线

xlLineStyleNone,//双线.

xlDouble,//点状线.

xlDot,//虚线.

xlDash,//连续线.

xlContinuous,//点线交互型

xlDashDot,//两点一线型

xlDashDotDot,//斜线.

xlSlantDashDot,E、单元格合并 用get_Range方法获取要合并的单元格，再设置MergeCells属性的值进行合并。代码：//合并单元格

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,4]).MergeCells =true;F、字体设置先用get_Range方法选中要设置字体的某个单元格或者或者直接用get_Characters方法直接选中要设置的字符进行设置；代码：//加粗字体

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.Bold =true;//设置字体大小

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.Size=16;//设置字体的颜色

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.ColorIndex = 3;//设置字体

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.Name ="隶书";//设置成斜体

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.Italic =true;//设置下划线

myExcel.get_Range(myExcel.Cells[1,1],myExcel.Cells[1,1]).Font.Underline =true;G、冻结行列 用get_Range方法获取单元格，再设置其Freezepanes属性为true，就把该单元格右上方的行和列都冻结了，取消冻结将其值设为false即可。//冻结行列

myExcel.get_Range(myExcel.Cells[3,1],myExcel.Cells[3,1]).Activate();myExcel.ActiveWindow.FreezePanes=true;H、 公式输入栏的隐藏//设置是否显示Excel公式输入栏，默认为true

myExcel.DisplayFormulaBar=false;I、 列标题与行标题的隐藏//设置是否显示行和列的标题，默认为true

myExcel.ActiveWindow.DisplayHeadings=false;J、网格的隐藏//设置是否显示网格，默认为true

myExcel.ActiveWindow.DisplayGridlines=false;K、 水平、垂直滚动条的隐藏//设置是否显示水平滚动条

myExcel.ActiveWindow.DisplayHorizontalScrollBar=false;//设置是否显示垂直滚动条

myExcel.ActiveWindow.DisplayVerticalScrollBar=false;L、页的隐藏Sheet//设置是否显示Sheet页

myExcel.ActiveWindow.DisplayWorkbookTabs=false;M、 电子表格外观控制：Sheet.DisplayToolbar= false;//是否显示工具栏默认值为 true

Sheet.DisplayOfficeLogo=  false;// 取消显示Office图标

Sheet.DisplayColumnHeadings=  false;// 是否显示列标题，默认是true

Sheet.DisplayRowHeadings=  false;// 是否显示行标题，默认是true

Sheet.DisplayHorizontalScrollBar=  false;// 是否显示水平滚动条，默认为true

Sheet.DisplayVerticalScrollBar=  false;// 是否显示垂直滚动条，默认为true

Sheet.DisplayGridlines=  false;// 电子表格是否显示网格，默认为truefor (int i = 1; i < DT.Columns.Count- 2; i += 2){Sheet.get_Range(Sheet.Rows.Cells[i,1],Sheet.Rows.Cells[i, DT.Columns.Count - 3]).Interior.set_ColorIndex(2); //设置行的颜色

}worksheet.Cells[1, 1]= "Excel单元格赋值";//Excel单元格赋值range.Font.Size = 15; //设置字体大小
range.Font.Underline=true; //设置字体是否有下划线
range.Font.Name="黑体";设置字体的种类
range.HorizontalAlignment=XlHAlign.xlHAlignCenter; //设置字体在单元格内的对其方式
range.ColumnWidth=15; //设置单元格的宽度
range.Cells.Interior.Color=System.Drawing.Color.FromArgb(255,204,153).ToArgb();//设置单元格的背景色
range.Borders.LineStyle=1; //设置单元格边框的粗细
range.BorderAround(XlLineStyle.xlContinuous,XlBorderWeight.xlThick,XlColorIndex.xlColorIndexAutomatic,System.Drawing.Color.Black.ToArgb());//给单元格加边框
range.Borders.get_Item(Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeTop).LineStyle=Microsoft.Office.Interop.Excel.XlLineStyle.xlLineStyleNone;//设置单元格上边框为无边框
range.EntireColumn.AutoFit(); //自动调整列宽
Range.HorizontalAlignment= xlCenter; // 文本水平居中方式Range.VerticalAlignment= xlCenter //文本垂直居中方式 Range.WrapText=true; //文本自动换行
Range.Interior.ColorIndex=39; //填充颜色为淡紫色
Range.Font.Color=clBlue; //字体颜色
xlsApp.DisplayAlerts=false; //保存Excel的时候，不弹出是否保存的窗口直接进行保存

向Excel中填充数据，并保存为临时文件Excel.ApplicationmyExcel =newExcel.Application();//打开模板文件

myExcel.Application.Workbooks.Open(mode.FullName,missing,missing,missing, missing, missing, missing, missing, missing,missing, missing,missing,missing, missing, missing);//选中有数据的Cells

Excel.WorkbookmyBook = myExcel.Workbooks[1];Excel.WorksheetmySheet = (Excel.Worksheet)myBook.Worksheets[1];Excel.Ranger = mySheet.get_Range(mySheet.Cells[1,1],mySheet.Cells[DT.Rows.Count + 2,DT.Columns.Count - 3]);r.Select();//不单独显示Excel，最后在IE中显示

myExcel.Visible=false;//第一行为报表的标题

myExcel.Cells[1,1]= "用模板导出的报表";//逐行写入数据，数组中第一行为报表的列标题for (int i = 0; i <DT.Columns.Count - 3; i++){myExcel.Cells[2,1+ i] =DT.Columns[i].Caption; ;}//在当前目录下指定一个临时文件string FileName =Server.MapPath("~")+"""Temp.xls";if (File.Exists(FileName)){File.Delete(FileName);}myExcel.Save(FileName);mySheet.Cells.Clear();//设置不出现保存提示框

myBook.Saved=true;myExcel.Application.Workbooks.Close();

public void importExcel(DataTable dt, string fileName, string filePath){int posStart = 2;//报表内容起始//设置字体样式Style style1 = new Style();style1.HorizontalAlignment = TextAlignmentType.Center;//文字居中style1.VerticalAlignment = TextAlignmentType.Left;style1.Font.Name = "宋体";style1.Font.IsBold = true;//设置粗体style1.Font.Size = 12;//设置字体大小
Style style2 = new Style();style2.HorizontalAlignment = TextAlignmentType.Center;style2.Font.Size = 10;Workbook wb = new Workbook();Worksheet ws = wb.Worksheets[0];Cells cell = ws.Cells;int colCount = dt.Columns.Count;int rowCount = dt.Rows.Count;//合并第一行单元格，显示标题Range range = cell.CreateRange(0, 0, 1, colCount);range.Merge();cell["A1"].PutValue(fileName); //标题cell.SetRowHeight(0, 20);//设置行高//给单元格关联样式cell["A1"].SetStyle(style1); //报表名字 样式//设置Execl列名for (int i = 0; i < colCount; i++){cell[1, i].PutValue(dt.Columns[i].ColumnName);//cell[1, i].SetStyle(style2);
            }//设置单元格内容for (int i = 0; i < rowCount; i++){for (int j = 0; j < colCount; j++){cell[i + posStart, j].PutValue((dt.Rows[i][j] + "").Trim());//cell[i + posStart, j].SetStyle(style2);
                }}//设置列宽//for (int i = 1; i < dt.Columns.Count; i++)//{//    cell.SetColumnWidthPixel(i - 1, int.Parse(dataGridView1.Columns[i].Width.ToString()));//}//保存excel表格
            wb.Save(filePath);}

原文地址：http://www.cnblogs.com/hanke123/p/6372525.html