try
{

Excel.ApplicationClass Myexcel=new Excel.ApplicationClass();
if(Myexcel==null)
{
MessageBox.Show("EXCEL无法启动!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
Myexcel.Visible = false;
Myexcel.UserControl = false;

Excel.Workbooks Myworkbooks=Myexcel.Workbooks;
Excel.Workbook Myworkbook=Myworkbooks.Open(@filename,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing,Type.Missing);
Excel.Worksheet Myworksheet=(Excel.Worksheet)Myworkbook.Worksheets[1];

Myworkbook.Close(null,null,null);
Myexcel.Workbooks.Close();
Myexcel.Application.Quit();
Myexcel.Quit(); }
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);
}请问一下,上面的代码中怎么取得单元格的值?
          退出时总是弹出对话框提示是否保存?
          open方法后面的参数都是什么意思 ?小弟在此先谢过!!!!