Texto en Mayusculas

 function textoMayuscula() {

  var hojaActiva = SpreadsheetApp.getActiveSpreadsheet();

  var formulario = hojaActiva.getSheetByName("Formulario");

   

  var celdasAMayuscula = ["D4", "D10", "D13", "F21"]; // Celdas a Mayuscula

  for (var i = 0; i < celdasAMayuscula.length; i++) {

    formulario.getRange(celdasAMayuscula[i]).setValue(formulario.getRange(celdasAMayuscula[i]).getValue().toString().toUpperCase() );

  }

}