XLS > TStringGrid

function Xls_To_StringGrid(AGrid: TStringGrid; AXLSFile: string): Boolean;
const
  xlCellTypeLastCell = $0000000B;
var
  XLApp, Sheet: OLEVariant;
  RangeMatrix: Variant;
  x, y, k, r: Integer;
begin
  Screen.Cursor:=crAppStart;
  Result := False;
  XLApp := CreateOleObject('Excel.Application');
  try
    XLApp.Visible := False;
    XLApp.Workbooks.Open(AXLSFile);
    Sheet := XLApp.Workbooks[ExtractFileName(AXLSFile)].WorkSheets[1];
    Sheet.Cells.SpecialCells(xlCellTypeLastCell, EmptyParam).Activate;
    x := XLApp.ActiveCell.Row;
    y := XLApp.ActiveCell.Column;
    AGrid.RowCount := x;
    AGrid.ColCount := y;  
    RangeMatrix := XLApp.Range['A1', XLApp.Cells.Item[X, Y]].Value;
    k := 1;
    repeat
      for r := 1 to y do
       AGrid.Cells[(r - 1), (k - 1)] := RangeMatrix[K, R];
      Inc(k, 1);
      AGrid.RowCount := k + 1;  
    until k > x;  
    RangeMatrix := Unassigned;
  finally
    if not VarIsEmpty(XLApp) then
    begin  
      XLApp.Quit;  
      XLAPP := Unassigned;  
      Sheet := Unassigned;  
      Result := True;  
    end;  
  end;
  Screen.Cursor:=crDefault;
end;

Взято из https://forum.sources.ru

Автор: Kostas