public function addOleObject($oleFile = '', $imageFile = '', $upperLeftRow = 0, $upperLeftColumn = 0, $height = 0, $width = 0)
    {
        if ($this->worksheetName == '') {
            throw new Exception('No Worksheet Specified');
        }
        $strURI = Product::$baseProductUri . '/cells/' . $this->getFileName() . '/worksheets/' . $this->worksheetName . '/oleobjects?upperLeftRow=' .
            $upperLeftRow . '&upperLeftColumn=' . $upperLeftColumn .
            '&height=' . $height . '&width=' . $width .
            '&oleFile=' . $oleFile . '&imageFile=' . $imageFile;
        $signedURI = Utils::sign($strURI);

        $responseStream = Utils::processCommand($signedURI, 'PUT');
        $json = json_decode($responseStream);
        if ($json->Code == 200) {
            return true;
        } else {
            return false;
        }

    }