Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/Fill.php
public function setRotation($pValue)
    {
        if ($this->isSupervisor) {
            $styleArray = $this->getStyleArray(['rotation' => $pValue]);
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->rotation = $pValue;
        }

        return $this;
    }
public function setRotation($pValue)
    {
        if ($this->isSupervisor) {
            $styleArray = $this->getStyleArray(['rotation' => $pValue]);
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->rotation = $pValue;
        }

        return $this;
    }
Set Rotation.

@param float $pValue

@return Fill