1.添加引用：

Aspose.Cells.dll（我们就叫工具包吧，可以从网上下载。关于它的操作我在“Aspose.Cells操作说明 中文版 下载 Aspose C# 导出Excel 实例”一文中的说。这里你暂时也可不理会它。）

即使没有安装office也能用噢，这是一个好强的大工具。

2.编写Excel操作类

using System;

using System.Collections.Generic;

using System.Text;

using Aspose.Cells;

using System.Data;

public class AsposeExcel

{

    private string outFileName = "";

    private string fullFilename = "";

    private Workbook book = null;

    private Worksheet sheet = null;

    public AsposeExcel(string outfilename, string tempfilename) //导出构造数

    {

        outFileName = outfilename;

        book = new Workbook();

        // book.Open(tempfilename);这里我们暂时不用模板

        sheet = book.Worksheets[0];

    }

    public AsposeExcel(string fullfilename) //导入构造数

    {

        fullFilename = fullfilename;

        // book = new Workbook();

        // book.Open(tempfilename);

        // sheet = book.Worksheets[0];

    }

    private void AddTitle(string title, int columnCount)

    {

        sheet.Cells.Merge(0, 0, 1, columnCount);

        sheet.Cells.Merge(1, 0, 1, columnCount);

        Cell cell1 = sheet.Cells[0, 0];

        cell1.PutValue(title);

        cell1.Style.HorizontalAlignment = TextAlignmentType.Center;

        cell1.Style.Font.Name = "黑体";

        cell1.Style.Font.Size = 14;

        cell1.Style.Font.IsBold = true;

        Cell cell2 = sheet.Cells[1, 0];

        cell1.PutValue("查询时间：" + DateTime.Now.ToLocalTime());

        cell2.SetStyle(cell1.Style);

    }

    private void AddHeader(DataTable dt)

    {

        Cell cell = null;

        for (int col = 0; col < dt.Columns.Count; col++)

        {

            cell = sheet.Cells[0, col];

            cell.PutValue(dt.Columns[col].ColumnName);

            cell.Style.Font.IsBold = true;

        }

    }

    private void AddBody(DataTable dt)

    {

        for (int r = 0; r < dt.Rows.Count; r++)

        {

            for (int c = 0; c < dt.Columns.Count; c++)

            {

                sheet.Cells[r + 1, c].PutValue(dt.Rows[R]­[c].ToString());

            }

        }

    }

    //导出------------下一篇会用到这个方法

    public Boolean DatatableToExcel(DataTable dt)

    {

        Boolean yn = false;

        try

        {

            //sheet.Name = sheetName;

            //AddTitle(title, dt.Columns.Count);

            //AddHeader(dt);

            AddBody(dt);

            sheet.AutoFitColumns();

            //sheet.AutoFitRows();

            book.Save(outFileName);

            yn = true;

            return yn;

        }

        catch (Exception e)

        {

            return yn;

            // throw e;

        }

    }

    public DataTable ExcelToDatatalbe()//导入

    {

        Workbook book = new Workbook();

        book.Open(fullFilename);

        Worksheet sheet = book.Worksheets[0];

        Cells cells = sheet.Cells;

        //获取excel中的数据保存到一个datatable中

        DataTable dt_Import = cells.ExportDataTableAsString(0, 0, cells.MaxDataRow + 1, cells.MaxDataColumn + 1, false);

        // dt_Import.

        return dt_Import;

    }

}[/R]

3. Word导出

//设置文件类型

// saveFileDialog为一个对话框控件

//如果没有人工具栏中拉，

//可以：SaveFileDialog saveFileDialog1=new SaveFileDialog();

saveFileDialog1.Filter = "导出Excel (*.xls)|*.xls|Word (*.doc)|*.doc";

saveFileDialog1.FilterIndex = 1;

saveFileDialog1.RestoreDirectory = true;

saveFileDialog1.CreatePrompt = true;

saveFileDialog1.Title = "导出文件保存路径";

//saveFileDialog1.ShowDialog();

//string strName = saveFileDialog1.FileName;

//设置默认文件类型显示顺序

//saveFileDialog1.FilterIndex = 2;

//保存对话框是否记忆上次打开的目录

saveFileDialog1.RestoreDirectory = true;

//点了保存按钮进入

if (saveFileDialog1.ShowDialog() == DialogResult.OK)

{

    //获得文件路径

    string localFilePath = saveFileDialog1.FileName.ToString();

    //获取文件名，不带路径

    string fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\") + 1);

    //获取文件路径，不带文件名

    string FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\"));

    //给文件名前加上时间

    string newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt;

    //在文件名里加字符

    //saveFileDialog1.FileName.Insert(1,"dameng");

    saveFileDialog1.FileName = FilePath + "\" + newFileName;

    System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();//输出文件

    StreamWriter writer = new StreamWriter(fs);

    writer.Write("tttt");//这里就是你要导出到word的内容，内容是你什么你自已DIY

    writer.Flush();

    writer.Close();

    fs.Close();

}

4. 导出datatable到excel

DataTable dt = null;

if (ds_all.Tables[0] != null)

{

    dt = ds_all.Tables[0];

}

else {

    MessageBox.Show("没有数据记录", "*^_^* 温馨提示信息", MessageBoxButtons.OK);

    return;

}

//上面只是取datatable，你自己diy

AsposeExcel tt = new AsposeExcel(saveFileDialog1.FileName, "");//不用模板, saveFileDialog1是什么？上面已经说过

bool OK_NO = tt.DatatableToExcel(dt);

if (OK_NO)

{

    MessageBox.Show("导出成功", "*^_^* 温馨提示信息", MessageBoxButtons.OK);

}

else

{

}

5. Excel导入

private void 导入ToolStripMenuItem_Click(object sender, EventArgs e)

{

    string localFilePath = "";

    //点了保存按钮进入

    if (openFileDialog1.ShowDialog() == DialogResult.OK)// openFileDialog1不要再问我这是什么！

    {

        //获得文件路径

        localFilePath = openFileDialog1.FileName.ToString();

}

    AsposeExcel tt = new AsposeExcel(localFilePath);

    DataTable dt;

    try

    {

        dt = tt.ExcelToDatatalbe();

    }

    catch (Exception ex)

    {

        return;

    }

//有了datatable你自己就可以DIY啦,下面是我自己的你不用理

if (ddlResidence.SelectedValue == "违章确认")

    {

        if (dt.Rows[0][9].ToString() != "违章确认")

        {

                            return;

        }

        row = dt.Rows.Count;

        if (row <= 0) return;

        for (int i = 0; i < dt.Rows.Count; i++)

        {

            bllviola.Up_Confirmed_ByVnum(dt.Rows[i][6].ToString(), dt.Rows[i][9].ToString());

        }

        this.GridView1.DataSource = dt;

        GridView1.DataBind();

}