读取EXcel内容到StringGrid的问题，帮忙看看！！

[cxfirefox]

这个过程总是出现EOLEException，那位老大能帮忙看看错误在那里啊？
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 2 do//最大取值1000
for j:=1 to 10 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
ExcelApplication1.Disconnect;
ExcelApplication1.Quit;
end;
end;
end;