Como enviar dados do delphi para o excel?

Procedure TFormCTEmbarque.SpeedButton1Click(Sender: TObject);
var
Excel : Variant;
Linha:Integer;
begin
Excel := CreateOleObject('Excel.Application');
Excel.Visible :=True;
{Excel.Workbooks.Add;}
Excel.WorkBooks.Open('\SERVIDORCotacaoGerar.xls');
Excel.WorkBooks[1].Sheets[1].Cells[2,7]:=Now;
Excel.WorkBooks[1].Sheets[1].Cells[3,2]:=DMCotacao.TBLiberaRemetente.Value;
Excel.WorkBooks[1].Sheets[1].Cells[3,5]:=DMCotacao.TBLiberaColeta.Value +
'-' +DMCotacao.TBLiberaUF_Coleta.Value;
Excel.WorkBooks[1].Sheets[1].Cells[4,2]:=DMCotacao.TBLiberaDestinatario.Value;
Excel.WorkBooks[1].Sheets[1].Cells[4,5]:=DMCotacao.TBLiberaDestino.Value +
'-' +DMCotacao.TBLiberaUF_Destino.Value;
Excel.WorkBooks[1].Sheets[1].Cells[5,2]:=DMCotacao.TBLiberaQuantidade.AsString;
Excel.WorkBooks[1].Sheets[1].Cells[5,5]:=DMCotacao.TBLiberaFreteEmpresa.AsString;
Excel.WorkBooks[1].Sheets[1].Cells[5,7]:=DMCotacao.TBLiberaContrato.AsString;
Excel.WorkBooks[1].Sheets[1].Cells[6,2]:=FormCTEmbarque.Edit2.Text;
Excel.WorkBooks[1].Sheets[1].Cells[6,5]:=FormCTEmbarque.Edit3.Text;
Excel.WorkBooks[1].Sheets[1].Cells[6,7]:=FormCTEmbarque.Edit4.Text;
Excel.WorkBooks[1].Sheets[1].Cells[7,2]:=DMCotacao.TBLiberaObservacao.Value;
DmCotacao.QCTEmbarque.Open;
Linha:=10;
While not DMCotacao.QCTEmbarque.Eof do
Begin
Excel.WorkBooks[1].Sheets[1].Cells[Linha,2]:=DMCotacao.QCTEmbarqueCTRC.Value;
Excel.WorkBooks[1].Sheets[1].Cells[Linha,3]:=DMCotacao.QCTEmbarqueNotaFiscal.Value;
Excel.WorkBooks[1].Sheets[1].Cells[Linha,4]:=DMCotacao.QCTEmbarquePeso.Value;
Excel.WorkBooks[1].Sheets[1].Cells[Linha,5]:=DMCotacao.QCTEmbarquePlaca.Value;
Excel.WorkBooks[1].Sheets[1].Cells[Linha,6]:=DMCotacao.QCTEmbarqueData.Value;
DmCotacao.QCTEmbarque.Next;
Linha:=Linha+1;
end;
Excel.WorkBooks[1].SaveAs('\SERVIDORCotacaoControle.xls');
DMCotacao.TBCotacao.Refresh;
end;