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下面介绍了Aspose.Cells将datatable导出Excel的具体方法：

using System; 
 using System.Collections.Generic; 
 using System.Linq; 
 using System.Web; 
 using System.IO; 
 using System.Data; 
 using Aspose.Cells; 
 
/// <summary> 
///OutFileDao 的摘要说明 
/// </summary> 
 publicclass OutFileDao 
 { 
         public OutFileDao() 
         { 
                 // 
                 //TODO: 在此处添加构造函数逻辑 
                 // 
         } 
 
         /// <summary> 
         /// 测试程序 
         /// </summary> 
         publicstaticvoid testOut() 
         { 
 
                 DataTable dt = new DataTable(); 
                 dt.Columns.Add("name"); 
                 dt.Columns.Add("sex"); 
                 DataRow dr = dt.NewRow(); 
                 dr["name"] = "名称1"; 
                 dr["sex"] = "性别1"; 
                 dt.Rows.Add(dr); 
 
                 DataRow dr1 = dt.NewRow(); 
                 dr1["name"] = "名称2"; 
                 dr1["sex"] = "性别2"; 
                 dt.Rows.Add(dr1); 
 
                 OutFileToDisk(dt, "测试标题", @"d:\测试.xls"); 
         } 
 
         /// <summary> 
         /// 导出数据到本地 
         /// </summary> 
         /// <param name="dt">要导出的数据</param> 
         /// <param name="tableName">表格标题</param> 
         /// <param name="path">保存路径</param> 
         publicstaticvoid OutFileToDisk(DataTable dt,string tableName,string path) 
         { 
 
 
                 Workbook workbook = new Workbook(); //工作簿 
                 Worksheet sheet = workbook.Worksheets[0]; //工作表 
                 Cells cells = sheet.Cells;//单元格 
 
                 //为标题设置样式     
                 Style styleTitle = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 styleTitle.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 styleTitle.Font.Name = "宋体";//文字字体 
                 styleTitle.Font.Size = 18;//文字大小 
                 styleTitle.Font.IsBold = true;//粗体 
 
                 //样式2 
                 Style style2 = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 style2.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 style2.Font.Name = "宋体";//文字字体 
                 style2.Font.Size = 14;//文字大小 
                 style2.Font.IsBold = true;//粗体 
                 style2.IsTextWrapped = true;//单元格内容自动换行 
                 style2.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; 
 
                 //样式3 
                 Style style3 = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 style3.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 style3.Font.Name = "宋体";//文字字体 
                 style3.Font.Size = 12;//文字大小 
                 style3.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; 
 
                 int Colnum = dt.Columns.Count;//表格列数 
                 int Rownum=dt.Rows.Count;//表格行数 
 
                 //生成行1 标题行    
                 cells.Merge(0, 0, 1, Colnum);//合并单元格 
                 cells[0, 0].PutValue(tableName);//填写内容 
                 cells[0, 0].SetStyle(styleTitle); 
                 cells.SetRowHeight(0, 38); 
 
                 //生成行2 列名行 
                 for (int i = 0; i < Colnum; i++) 
                 { 
                         cells[1, i].PutValue(dt.Columns[i].ColumnName); 
                         cells[1, i].SetStyle(style2); 
                         cells.SetRowHeight(1, 25); 
                 } 
 
                 //生成数据行 
                 for (int i = 0; i < Rownum; i++) 
                 { 
                         for (int k = 0; k < Colnum; k++) 
                         { 
                                 cells[2 + i, k].PutValue(dt.Rows[i][k].ToString()); 
                                 cells[2 + i, k].SetStyle(style3); 
                         } 
                         cells.SetRowHeight(2+i, 24); 
                 } 
                  
                 workbook.Save(path); 
         } 
 
 
         public MemoryStream OutFileToStream(DataTable dt, string tableName) 
         { 
                 Workbook workbook = new Workbook(); //工作簿 
                 Worksheet sheet = workbook.Worksheets[0]; //工作表 
                 Cells cells = sheet.Cells;//单元格 
 
                 //为标题设置样式     
                 Style styleTitle = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 styleTitle.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 styleTitle.Font.Name = "宋体";//文字字体 
                 styleTitle.Font.Size = 18;//文字大小 
                 styleTitle.Font.IsBold = true;//粗体 
 
                 //样式2 
                 Style style2 = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 style2.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 style2.Font.Name = "宋体";//文字字体 
                 style2.Font.Size = 14;//文字大小 
                 style2.Font.IsBold = true;//粗体 
                 style2.IsTextWrapped = true;//单元格内容自动换行 
                 style2.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; 
                 style2.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; 
 
                 //样式3 
                 Style style3 = workbook.Styles[workbook.Styles.Add()];//新增样式 
                 style3.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
                 style3.Font.Name = "宋体";//文字字体 
                 style3.Font.Size = 12;//文字大小 
                 style3.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; 
                 style3.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; 
 
                 int Colnum = dt.Columns.Count;//表格列数 
                 int Rownum = dt.Rows.Count;//表格行数 
 
                 //生成行1 标题行    
                 cells.Merge(0, 0, 1, Colnum);//合并单元格 
                 cells[0, 0].PutValue(tableName);//填写内容 
                 cells[0, 0].SetStyle(styleTitle); 
                 cells.SetRowHeight(0, 38); 
 
                 //生成行2 列名行 
                 for (int i = 0; i < Colnum; i++) 
                 { 
                         cells[1, i].PutValue(dt.Columns[i].ColumnName); 
                         cells[1, i].SetStyle(style2); 
                         cells.SetRowHeight(1, 25); 
                 } 
 
                 //生成数据行 
                 for (int i = 0; i < Rownum; i++) 
                 { 
                         for (int k = 0; k < Colnum; k++) 
                         { 
                                 cells[2 + i, k].PutValue(dt.Rows[i][k].ToString()); 
                                 cells[2 + i, k].SetStyle(style3); 
                         } 
                         cells.SetRowHeight(2 + i, 24); 
                 } 
 
                 MemoryStream ms = workbook.SaveToStream(); 
                 return ms; 
         } 
 
 }

public static bool ExportExcelWithAspose(System.Data.DataTable dt, string path)
          {
              bool succeed = false;
              if (dt != null)
              {
                  try
                  {
                      Aspose.Cells.License li = new Aspose.Cells.License();
                      string lic = Resources.License;
                     Stream s = new MemoryStream(ASCIIEncoding.Default.GetBytes(lic));
                     li.SetLicense(s);
 
                     Aspose.Cells.Workbook workbook = new Aspose.Cells.Workbook();
                     Aspose.Cells.Worksheet cellSheet = workbook.Worksheets[0];
 
                     cellSheet.Name = dt.TableName;
 
                     int rowIndex = 0;
                     int colIndex = 0;
                     int colCount = dt.Columns.Count;
                     int rowCount = dt.Rows.Count;
 
                     //列名的处理
                     for (int i = 0; i < colCount; i++)
                    {
                        cellSheet.Cells[rowIndex, colIndex].PutValue(dt.Columns[i].ColumnName);
                         cellSheet.Cells[rowIndex, colIndex].Style.Font.IsBold = true;
                         cellSheet.Cells[rowIndex, colIndex].Style.Font.Name = "宋体";
                         colIndex++;
                     }
 
                     Aspose.Cells.Style style = workbook.Styles[workbook.Styles.Add()];
                     style.Font.Name = "Arial";
                     style.Font.Size = 10;
                     Aspose.Cells.StyleFlag styleFlag = new Aspose.Cells.StyleFlag();
                     cellSheet.Cells.ApplyStyle(style, styleFlag);
 
                     rowIndex++;
 
                     for (int i = 0; i < rowCount; i++)
                     {
                         colIndex = 0;
                         for (int j = 0; j < colCount; j++)
                         {
                             cellSheet.Cells[rowIndex, colIndex].PutValue(dt.Rows[i][j].ToString());
                             colIndex++;
                         }
                         rowIndex++;
                     }
                     cellSheet.AutoFitColumns();
 
                     path = Path.GetFullPath(path);
                     workbook.Save(path);
                     succeed = true;
                 }
                 catch (Exception ex)
                 {
                     succeed = false;
                 }
            }
 
             return succeed;
        }