function TTools.Xls_To_StringGrid(AGrid: TStringGrid; AXLSFile: string; Sheetname : string): Boolean;
const
xlCellTypeLastCell = $0000000B;
var
XLApp, Sheet: OLEVariant;
RangeMatrix: Variant;
x, y, k, r: Integer;
begin
Result := False;
XLApp := CreateOleObject('Excel.Application'); // Create Excel-
OLE Object
try
XLApp.Visible := True; // Excel
XLApp.Workbooks.Open(AXLSFile); // Open the Workbook
Sheet := XLApp.Workbooks[ExtractFileName(AXLSFile)].WorkSheets[sheetname]; // Sheet := XLApp.Workbooks[1].WorkSheets[1];
// In order to know the dimension of the WorkSheet, i.e the number of rows
// and the number of columns, we activate the last non-empty cell of it
Sheet.Cells.SpecialCells(xlCellTypeLastCell, EmptyParam).Activate;
x := XLApp.ActiveCell.Row; // Get the value of the last row
y := XLApp.ActiveCell.Column; // Get the value of the last column
// Set Stringgrid's row &col dimensions.
AGrid.RowCount := x;
AGrid.ColCount := y;
RangeMatrix := XLApp.Range['A1', XLApp.Cells.Item[X, Y]].Value; // Assign the Variant associated with the WorkSheet to the Delphi Variant
// Define the loop for filling in the TStringGrid
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;
// Unassign the Delphi Variant Matrix
RangeMatrix := Unassigned;
finally
// Quit Excel
if not VarIsEmpty(XLApp) then
begin
XLApp.DisplayAlerts := False;
XLApp.Quit;
XLAPP := Unassigned;
Sheet := Unassigned;
Result := True;
end;
end;
end;
procedure TTools.EinlesenFClick(Sender: TObject);
begin
Xls_To_StringGrid(DE_XLS, ExcelE.Text, 'DE');
Xls_To_StringGrid(CH_XLS, ExcelE.Text, 'CH');
end;