将Excel数据导入到stringgrid中，网上到处都是这个代码，但根本就 无法编译通过啊！

Question

procedure TForm1.Button1Click(Sender: TObject);
var i,j:integer;
begin
opendialog1.InitialDir:=ExtractFileDir(paramstr(0));//文件的打存放初始路径
opendialog1.Execute;
Try
ExcelApplication1.Connect;//EXCEL应用程序
Except
MessageDlg('Excel may not be installed',mtError, [mbOk], 0);
Abort;
End;
ExcelApplication1.Visible[0]:=True;
ExcelApplication1.Caption:='Excel Application';
try 
excelapplication1.Workbooks.Open(opendialog1.FileName,
null,null,null,null,null,null,null,null,null,null,null,null,0);//打开指定的EXCEL 文件
except
begin
ExcelApplication1.Disconnect;//出现异常情况时关闭
ExcelApplication1.Quit;showmessage('请选择EXCEL电子表格!');
exit;
end;
end;
ExcelWorkbook1.ConnectTo(ExcelApplication1.Workbooks[1]);//ExcelWorkbook1与Eexcelapplication1建立连接
ExcelWorksheet1.ConnectTo(ExcelWorkbook1.Worksheets[1] as _Worksheet);//Excelworksheet1与Excelworkbook1建立连接 
//开始从EXCEL中取数，放到stringgrid1中，取完数后关闭EXCEL
for i:=1 to 1000 do//最大取值1000
for j:=1 to 6 do
begin
if trim(excelworksheet1.cells.item[i+1,1])<>'' then
begin
stringgrid1.rowCount:=i+1;
stringgrid1.Cells[j,i]:=ExcelWorksheet1.Cells.Item[i+1,j];
end
else
begin
label3.caption:=inttostr(i-1);
ExcelApplication1.Disconnect;
ExcelApplication1.Quit;
//将第一条数据赋给编辑框
edit2.text:=stringgrid1.Cells[1,1];
edit1.text:=stringgrid1.Cells[2,1];
edit3.text:=stringgrid1.Cells[3,1];
edit4.text:=stringgrid1.Cells[4,1];
edit5.text:=stringgrid1.Cells[5,1];
exit;
end;
end;
end;
在以上代码中，excelapplication1.Workbooks.Open(opendialog1.FileName,
null,null,null,null,null,null,null,null,null,null,null,null,0);//打开指定的EXCEL 文件这个一直提示错误，not enough actual parameters!!!!
高手请指点啊。。

Answer 1

参数不够，总共应该是16个参数。
    function Open(const Filename: WideString; UpdateLinks: OleVariant; ReadOnly: OleVariant; 
                  Format: OleVariant; Password: OleVariant; WriteResPassword: OleVariant; 
                  IgnoreReadOnlyRecommended: OleVariant; Origin: OleVariant; Delimiter: OleVariant; 
                  Editable: OleVariant; Notify: OleVariant; Converter: OleVariant; 
                  AddToMru: OleVariant; Local: OleVariant; CorruptLoad: OleVariant; lcid: Integer):