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thanks, I use the example works, I made another and also, using php cli
everything is ok

when I use laravel the function replaceChartData works fine but it shows me the error
ErrorException in CreateCompletedXlsx.inc line 144: undefined index: name

* the file with the graphics if it is generated

my code is

 $docxx = new \Phpdocx\Utilities\DocxUtilities();
        $source = storage_path('/reporteword2017/example_area_chart.docx');
        $target = storage_path('/reporteword2017/example_area_chartt.docx');
        $data = array();
        $data[0] = array(
            'title' => 'ramiro',
            'legends' => array(
                'new legend',
            ),
            'categories' => array(
                'cat 1',
                'cat 2',
                'cat 3',
                'cat 4',
            ),
            'values' => array(
                array(30),
                array(10),
                array(15),
                array(10)
            ),
        );
        $data[1] = array(
            'title' => 'Other title',
            'legends' => array(
                'legend 1',
                'legend 2',
                'legend 3',
            ),
            'categories' => array(
                'other cat 1',
                'other cat 2',
                'other cat 3',
                'other cat 4',
            ),
            'values' => array(
                array(25, 10, 5),
                array(20, 5, 4),
                array(15, 0, 3),
                array(10, 15, 2),
            ),
        );
        $docxx->replaceChartData($source, $target, $data);

i  think that is a warning  in the code 

i wait you  answer  to do in laravel   thanks.