code: public function setCellValueExplicitByColumnAndRow($columnIndex, $row, $value, $dataType)
      {
          $this->getCellByColumnAndRow($columnIndex, $row)->setValueExplicit($value, $dataType);
  
          return $this;
      }
docs: Set a cell value by using numeric cell coordinates.
  
  @param int $columnIndex Numeric column coordinate of the cell
  @param int $row Numeric row coordinate of the cell
  @param mixed $value Value of the cell
  @param string $dataType Explicit data type, see DataType::TYPE_*
  
  @return Worksheet