如果从快速生成Excel报表，不调用Excel组件角度讲，MyXls可能是一种最好的选择之一，当然使用Open Xml方式也是不错的选择。MyXls是一个用C#语言开发的生成Excel报表的优秀开源项目，在快速开发中我一直比较喜欢它。MyXls官方的解释：

Writes and now Reads Excel files quickly and easily, including formatting. Generate Excel files for ASP.NET sites or .NET applications. Doesn't require Excel on the server or any licensing $. Compatible with Excel versions >= 97

MyXls可以用在.NET平台的诸如Windows Form，Asp.NET项目中，当然Sharepoint项目中也可以使用，支持的Excel版本包裹2003，2007等等(Excel versions >= 97)。

大凡开源项目的作者，多半都是重口味者，MyXls开源组件基于的技术是Excel文件的二进制格式(BIFF)，   OpenOffice.org发布过的俩个文档Excel File Format (BIFF8)Specification和Microsoft CompoundDocument (OLE2) Format Specification对Excel的二进制格式做了一个比较详细的说明，MyXls的作者正是凭借这些信息把它开发而成的。

MyXls的下载地址:MyXls

 

下面通过2个例子来使用这个开源组件

生成单个Worksheet：

                        XlsDocument doc = new XlsDocument();
                        doc.FileName = "MyXlsWebAppDemo.xls";
                        Worksheet sheet = doc.Workbook.Worksheets.Add("Hello World Sheet");
                        Cell cell = sheet.Cells.Add(1, 1, "Hello,MyXls!");
                        for (int i = 2; i <= 10; i++)
                        {
                                cell = sheet.Cells.Add(i, 1, "51CTO五岁了!");
                                cell.Font.Weight = FontWeight.Bold;
                                cell.Font.ColorIndex =2;//白 红 绿 蓝 黄 粉红等等颜色，可以通过源代码了解颜色
                        }
                        
                        doc.Send();

生成的报表如下：

生成多个WorkSheet

XlsDocument xls = new XlsDocument();//新建一个xls文档
                        xls.FileName = "MyXlsDemo.xls";//设定Excel文件名

                        xls.SummaryInformation.Author = "Terry Li"; //填加Excel文件作者信息
                        xls.SummaryInformation.Subject = "MyXls Demo";//填加文件主题信息
                        xls.DocumentSummaryInformation.Company = "in2bits.org";//填加文件公司信息

string sheetName = "第一个Sheet Demo";#region    

                        string sheetName = "第一个Sheet Demo";
                        Worksheet sheet = xls.Workbook.Worksheets.Add(sheetName);//填加名为"第一个Sheet Demo"的sheet页
                        Cells cells = sheet.Cells;//Cells实例是sheet页中单元格(cell)集合
                        //单元格1-base
                        Cell cell = cells.Add(2, 3, "三");//设定第2行，第3例单元格的值
                        cell.HorizontalAlignment = HorizontalAlignments.Centered;//设定文字居中
                        cell.Font.FontName = "行楷";//设定字体
                        cell.Font.Height = 30 * 20;//设定字大小（字体大小是以 1/20 point 为单位的）
                        cell.UseBorder = true;//使用边框
                        cell.BottomLineStyle = 2;//设定边框底线为粗线
                        cell.BottomLineColor = Colors.Red;//设定颜色为红色
                        cell.RightLineStyle = 2;
                        cell.RightLineColor = Colors.Red;
                        
                        

                        //cell的格式还可以定义在一个xf对象中
                        XF cellXF = xls.NewXF();//为xls生成一个XF实例（XF是cell格式对象）
                        cellXF.HorizontalAlignment = HorizontalAlignments.Centered;//设定文字居中
                        cellXF.Font.FontName = "隶书";//设定字体
                        cellXF.Font.Height = 30 * 20;//设定字大小（字体大小是以 1/20 point 为单位的）
                        cellXF.UseBorder = true;//使用边框
                        cellXF.BottomLineStyle = 2;//设定边框底线为粗线
                        cellXF.BottomLineColor = Colors.Green;//设定颜色为绿色
                        cellXF.LeftLineStyle = 2; //设定边框左线为粗线
                        cellXF.LeftLineColor = Colors.Green;

                        cell = cells.Add(3, 3, "国", cellXF);//以设定好的格式填加cell

                        cellXF.Font.FontName = "仿宋_GB2312";
                        cellXF.BottomLineStyle = 2; //设定边框底线为粗线
                        cellXF.BottomLineColor = Colors.Blue;//设定颜色为蓝色
                        cellXF.RightLineStyle = 2;//设定边框右线为粗线
                        cellXF.RightLineColor = Colors.Blue;//设定颜色为蓝色
                        cellXF.LeftLineStyle = 0;
                        cell = cells.Add(4, 3, "志", cellXF);//格式可以多次使用

                        //ColumnInfo colInfo = new ColumnInfo(xls, sheet);//生成列格式对象
                        设定colInfo格式的起作用的列为第2列到第5列(列格式为0-base)
                        //colInfo.ColumnIndexStart = 1;//起始列为第二列
                        //colInfo.ColumnIndexEnd = 5;//终止列为第六列
                        //colInfo.Width = 15 * 256;//列的宽度计量单位为 1/256 字符宽
                        //sheet.AddColumnInfo(colInfo);//把格式附加到sheet页上（注：AddColumnInfo方法有点小问题，不给把colInfo对象多次附给sheet页）
                        //colInfo.ColumnIndexEnd = 6;//可以更改列对象的值
                        //ColumnInfo colInfo2 = new ColumnInfo(xls, sheet);//通过新生成一个列格式对象，才到能设定其它列宽度
                        //colInfo2.ColumnIndexStart = 7;
                        //colInfo2.ColumnIndexEnd = 8;
                        //colInfo2.Width = 20 * 256;
                        //sheet.AddColumnInfo(colInfo2);

                        MergeArea meaA = new MergeArea(2, 3, 5, 7);//一个合并单元格实例(合并第2行、第5例 到 第3行、第7例)
                        sheet.AddMergeArea(meaA);//填加合并单元格
                        cellXF.VerticalAlignment = VerticalAlignments.Centered;
                        cellXF.Font.FontName = "隶书";
                        //cellXF.Font.Height = 48 * 20;
                        //cellXF.Font.Bold = true;
                        cellXF.Pattern = 1;//设定单元格填充风格。如果设定为0，则是纯色填充(无色)，1代表没有间隙的实色
                        cellXF.PatternBackgroundColor = Colors.Red;//填充的底色
                        cellXF.PatternColor = Colors.Green;//设定填充线条的颜色
                        cell = cells.Add(2, 5, "晋/陈寿", cellXF);
                        #endregion

                        sheet.Cells.Merge(7, 9, 1, 4);
                        cell = cells.Add(7, 1, "MyXls 合并单元格 Demo");
                        cell.HorizontalAlignment = HorizontalAlignments.Centered;
                        cell.VerticalAlignment = VerticalAlignments.Centered;

                        for (int sheetNumber = 1; sheetNumber <= 4; sheetNumber++)
                        {
                                sheetName = "Sheet " + sheetNumber;
                                int rowMin = sheetNumber;
                                int rowCount = sheetNumber + 10;
                                int colMin = sheetNumber;
                                int colCount = sheetNumber + 10;
                                sheet = xls.Workbook.Worksheets.Add(sheetName);
                                cells = sheet.Cells;
                                for (int r = 0; r < rowCount; r++)
                                {
                                        if (r == 0)
                                        {
                                                for (int c = 0; c < colCount; c++)
                                                {
                                                        cells.Add(rowMin + r, colMin + c, "Column" + (c + 1)).Font.Bold = true;
                                                }
                                        }
                                        else
                                        {
                                                for (int c = 0; c < colCount; c++)
                                                {
                                                        int val = r + c;
                                                        cell = cells.Add(rowMin + r, colMin + c, val+ ":51CTO五岁了!");
                                                        if (val % 2 != 0)
                                                        {
                                                                cell.HorizontalAlignment = HorizontalAlignments.Centered;
                                                                cell.Font.FontName = "Times New Roman";
                                                                cell.Font.Underline = UnderlineTypes.Double;
                                                                cell.Font.ColorIndex = 2;
                                                                cell.Rotation = 45; //字符倾斜45度
                                                        }
                                                }
                                        }
                                }
                        }

                        xls.Send();//XlsDocument.SendMethods.Inline