如何操作Ecxel文件

private void button1_Click(object sender, System.EventArgs e)
        {//保存为EXCEL文件
            if(this.listView1.Items.Count<1)
                return;
            try
            {
                Excel.ApplicationClass MyExcel=new Excel.ApplicationClass();
                MyExcel.Visible=true;
                if(MyExcel==null)
                {
                    MessageBox.Show("EXCEL无法启动！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
                    return;
                }
                Excel.Workbooks MyWorkBooks = MyExcel.Workbooks;
                Excel.Workbook MyWorkBook = MyWorkBooks.Add(Missing.Value);
                Excel.Worksheet MyWorkSheet = (Excel.Worksheet)MyWorkBook.Worksheets[1];
                Excel.Range MyRange = MyWorkSheet.get_Range("A1","C1");
                object [] MyHeader = {"姓名","专业","毕业院校"};
                MyRange.Value2= MyHeader;
                if (this.listView1.Items.Count >0)
                {
                    MyRange =MyWorkSheet.get_Range("A2",Missing.Value);
                    object [,] MyData = new Object[this.listView1.Items.Count,3];
                    foreach(ListViewItem lvi in this.listView1.Items)
                    {
                        MyData[lvi.Index,0] = lvi.Text;
                        MyData[lvi.Index,1] = lvi.SubItems[1].Text;
                        MyData[lvi.Index,2] = lvi.SubItems[2].Text;
                    }
                    MyRange = MyRange.get_Resize(this.listView1.Items.Count,3);
                    MyRange.Value2= MyData;
                    MyRange.EntireColumn.AutoFit();
                }
                MyExcel= null;
            }
            catch(Exception Err)
            {
                MessageBox.Show("调用EXCEL程序时出现错误！"+Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
            }
        }

        private void button2_Click(object sender, System.EventArgs e)
        {//填充表格数据内容
            int itemNumber=this.listView1.Items.Count;
            string[] subItem0={"王斌","计算机科学技术","武汉大学"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem0));
            string[] subItem1={"汪兰","财会电算化管理","西南财经大学"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem1));
            string[] subItem2={"汤波","计算机软件技术","上海交通大学"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem2));
            string[] subItem3={"罗成","计算机管理","重庆大学"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem3));
            string[] subItem4={"汤小敏","环境保护","西南师范大学"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem4));
            string[] subItem5={"刘功得","轻工机械装备","重庆市轻工业学校"};
            this.listView1.Items.Insert(itemNumber,    new ListViewItem(subItem5));
        }