C#中如何将将数据导出到word excel 中

public void OutToWord() {    if(dataGridview1.Rows.Count>1)    {       tempStr = “”;       Stream myStream;       SaveFileDialog dlg = new SaveFileDialog();       dlg.Filter = “(word文件)*.doc|*.doc”;       dlg.FileterIndex = 2;       dlg.RestoreDirectory = true;       if(dlg.SaveFileDialog == DialogResult.OK)       {           if((myStream = dlg.OpenFile())!=null)           {             StreamWriter sw = new StreamWriter(myStream,Encoding.GetEncoding(“gb2312”));               string str=””;             try             {               for(int i=0;i<dataGridView1.ColumnCount;i++)                   {                   if(i>0) str+=”\t\t”;                   str+=dataGridView1.Column[i].HeadText;                }                sw.WriteLine(str);                for(int j=0;j<dataGridView1.Rows.Count -1 ;j++)                {                   tempstr=””;                   for(int k=0;k<dataGridView1.ColumnsCount;k++)                   {                       if(k>0) tempStr+=”\t”;                       tempStr+=dataGridView1.Rows[j].Column[k].Value.ToString();                   }                   sw.WriteLine(str);                }    MessageBox.Show(“成功导出到word”); }             catch(Exception ex)             {                  MessageBox.Show(ex.ToString());             }             Finally             {            sw.Close();            myStream.Close();           } } }   }