{....} 

uses DB; 
{....} 

  private 
    procedure SendToExcel(aDataSet: TDataSet); 

{....} 


uses 
  ComObj, ActiveX, Excel2000; // or Excel97 

procedure TForm1.SendToExcel(aDataSet: TDataSet); 
var 
  PreviewToExcel: TExcelApplication; 
  RangeE: Excel2000.Range; //or RangeE: Excel97.Range 
  I, Row: Integer; 
  Bookmark: TBookmarkStr; 
begin 
  PreviewToExcel := TExcelApplication.Create(Self); 
  PreviewToExcel.Connect; 
  PreviewToExcel.Workbooks.Add(NULL, 0); 
  RangeE := PreviewToExcel.ActiveCell; 
  
  for I := 0 to aDataSet.Fields.Count - 1 do 
  begin 
    RangeE.Value := aDataSet.Fields[I].DisplayLabel; 
    RangeE := RangeE.Next; 
  end; 

  aDataSet.DisableControls; 
  try 
    Bookmark := aDataSet.Bookmark; 
    try 
      aDataSet.First; 
      Row := 2; 
      while not aDataSet.EOF do 
      begin 
        //Write down Record As Row in msExcel 
        RangeE := PreviewToExcel.Range['A' + IntToStr(Row), 'A' + IntToStr(Row)]; 
        for I := 0 to aDataSet.Fields.Count - 1 do 
        begin 
          RangeE.Value := aDataSet.Fields[I].AsString; 
          RangeE := RangeE.Next; 
        end; 
        aDataSet.Next; 
        Inc(Row); 
      end; 
    finally 
      aDataSet.Bookmark := Bookmark; 
    end; 
  finally 
    aDataSet.EnableControls; 
  end; 

  //Creating Preview from Range A1..ColumnX 
  //Calculating ASCII 64 (Character Before "A") With Dataset FieldsCount 
  //This Method can only handle range A1..Z?, if want to be excel column type 
  //support, exp "AA"/"IV" 
  RangeE := PreviewToExcel.Range['A1', chr(64 + aDataSet.Fields.Count) + IntToStr(Row - 1)]; 

  RangeE.AutoFormat(8, NULL, NULL, NULL, NULL, NULL, NULL); 
  PreviewToExcel.Visible[0] := True; 
  PreviewToExcel.Disconnect; 
end; 


// Beispiel: 
// Example: 
procedure TForm1.Button1Click(Sender: TObject); 
begin 
  SendToExcel(Table1); 
end;