一般来说C#在不安装Excel软件的情况下，可以通过XML来创建Excel文档。因此，运行本文所述代码您无需安装Excel程序。本文原例子是使用VB.Net写的，以下的用C#改写的代码，分享给大家，供大家参考。

具体代码如下：

DataSet mDSData = new DataSet(); mDSData.Tables.Add("myTable"); mDSData.Tables["myTable"].Columns.Add("ID"); mDSData.Tables["myTable"].Columns.Add("Name"); mDSData.Tables["myTable"].Columns.Add("PassWord"); for (int i = 0; i < 10; i++) { DataRow dr = mDSData.Tables["myTable"].NewRow(); dr["ID"] = i; dr["Name"] = i; dr["PassWord"] = i; mDSData.Tables["myTable"].Rows.Add(dr); } SaveFileDialog dialog1 = new SaveFileDialog(); dialog1.AddExtension = true; dialog1.CheckPathExists = true; dialog1.Filter = "Excel Workbooks (*.xls) | *.xls"; dialog1.OverwritePrompt = true; dialog1.Title = "Save Excel Formatted Report"; if (dialog1.ShowDialog() == DialogResult.OK) { int num2 = 0; int num3 = mDSData.Tables[0].Rows.Count + 1; int num1 = mDSData.Tables[0].Columns.Count; num2 = 0; string text1 = dialog1.FileName; if (File.Exists(text1)) { File.Delete(text1); } StreamWriter writer1 = new StreamWriter(text1, false); StreamWriter writer2 = writer1; writer2.WriteLine("<"1.0""); writer2.WriteLine("<?mso-application progid="Excel.Sheet""); writer2.WriteLine("<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet""); writer2.WriteLine(" xmlns:o="urn:schemas-microsoft-com:office:office""); writer2.WriteLine(" xmlns:x="urn:schemas-microsoft-com:office:excel""); writer2.WriteLine(" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet""); writer2.WriteLine(" xmlns:html="http://www.w3.org/TR/REC-html40">"); writer2.WriteLine(" <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">"); writer2.WriteLine(" <Author>Automated Report Generator Example</Author>"); writer2.WriteLine(string.Format(" <Created>{0}T{1}Z</Created>", DateTime.Now.ToString("yyyy-mm-dd"), DateTime.Now.ToString("HH:MM:SS"))); writer2.WriteLine(" <Company>Your Company Here</Company>"); writer2.WriteLine(" <Version>11.6408</Version>"); writer2.WriteLine(" </DocumentProperties>"); writer2.WriteLine(" <ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">"); writer2.WriteLine(" <WindowHeight>8955</WindowHeight>"); writer2.WriteLine(" <WindowWidth>11355</WindowWidth>"); writer2.WriteLine(" <WindowTopX>480</WindowTopX>"); writer2.WriteLine(" <WindowTopY>15</WindowTopY>"); writer2.WriteLine(" <ProtectStructure>False</ProtectStructure>"); writer2.WriteLine(" <ProtectWindows>False</ProtectWindows>"); writer2.WriteLine(" </ExcelWorkbook>"); writer2.WriteLine(" <Styles>"); writer2.WriteLine(" <Style ss:ID="Default" ss:Name="Normal">"); writer2.WriteLine(" <Alignment ss:Vertical="Bottom"/>"); writer2.WriteLine(" <Borders/>"); writer2.WriteLine(" <Font/>"); writer2.WriteLine(" <Interior/>"); writer2.WriteLine(" <Protection/>"); writer2.WriteLine(" </Style>"); writer2.WriteLine(" <Style ss:ID="s21">"); writer2.WriteLine(" <Alignment ss:Vertical="Bottom" ss:WrapText="1"/>"); writer2.WriteLine(" </Style>"); writer2.WriteLine(" </Styles>"); writer2.WriteLine(" <Worksheet ss:Name="MyReport">"); writer2.WriteLine(string.Format(" <Table ss:ExpandedColumnCount="{0}" ss:ExpandedRowCount="{1}" x:FullColumns="1"", num1.ToString(), num3.ToString())); writer2.WriteLine(" x:FullRows="1">"); foreach (DataRow row1 in mDSData.Tables[0].Rows) { writer2.WriteLine("<Row>"); for (num2 = 0; num2 != num1; num2++) { writer2.Write("<Cell ss:StyleID="s21"><Data ss:Type="String">"); writer2.Write(row1[num2].ToString()); writer2.WriteLine("</Data></Cell>"); } writer2.WriteLine("</Row>"); } writer2.WriteLine(" </Table>"); writer2.WriteLine(" <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">"); writer2.WriteLine(" <Selected/>"); writer2.WriteLine(" <Panes>"); writer2.WriteLine(" <Pane>"); writer2.WriteLine(" <Number>3</Number>"); writer2.WriteLine(" <ActiveRow>1</ActiveRow>"); writer2.WriteLine(" </Pane>"); writer2.WriteLine(" </Panes>"); writer2.WriteLine(" <ProtectObjects>False</ProtectObjects>"); writer2.WriteLine(" <ProtectScenarios>False</ProtectScenarios>"); writer2.WriteLine(" </WorksheetOptions>"); writer2.WriteLine(" </Worksheet>"); writer2.WriteLine(" <Worksheet ss:Name="Sheet2">"); writer2.WriteLine(" <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">"); writer2.WriteLine(" <ProtectObjects>False</ProtectObjects>"); writer2.WriteLine(" <ProtectScenarios>False</ProtectScenarios>"); writer2.WriteLine(" </WorksheetOptions>"); writer2.WriteLine(" </Worksheet>"); writer2.WriteLine(" <Worksheet ss:Name="Sheet3">"); writer2.WriteLine(" <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">"); writer2.WriteLine(" <ProtectObjects>False</ProtectObjects>"); writer2.WriteLine(" <ProtectScenarios>False</ProtectScenarios>"); writer2.WriteLine(" </WorksheetOptions>"); writer2.WriteLine(" </Worksheet>"); writer2.WriteLine("</Workbook>"); writer2 = null; writer1.Close(); MessageBox.Show("Report Created", "Success", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); }

这只是主要的代码，使用前需要此入using相应的命名空间，如果不知道需要哪个命名空间，可在编译时根据提示逐个添加。