// Create a new workbook Workbook workbook = new Workbook(); IWorksheet worksheet = workbook.getWorksheets().get(0); //Add a rounded rectangle shape. IShape shape = worksheet.getShapes().addShape(AutoShapeType.RoundedRectangle, 10, 10, 200, 100); //Set alternative text. shape.setAlternativeText("This is a rounded rectangle."); // Save to an excel file workbook.save("SetShapeAltText.xlsx");