question about phantom and file excel

thanks a lot for your answer, but it didn't resole my problem.
i encountered this problem when i use  phantomjs and flexmonster.
and data come from a file json.
could you add a file json in your example plz ?
i tried use a file outside(http://extrablog.fr/file/source.php)
but it refused !

my codes is :
in the report, data come from a file json. like 
http://extrablog.fr/file/source.php

            i = 0;
            loadReport();
            function loadReport() {
                var val = liste_report[i];
                report = jQuery.parseJSON(val['report']['report']);
                try{
                    var pivot = new Flexmonster({
                        licenseKey: licenceKey,
                        container: "#pivotContainer",
                        componentFolder: "../flexmonster/",
                        customizeCell: customizeCellFunction,
                        reportcomplete: function() {
                            pivot.off("reportcomplete");
                            generateExcel(pivot);
                        },
                        exportcomplete: function() {
                            i++;
                            pivot.off("exportcomplete");
                            if (i < liste_report.length) {
                                loadReport();
                            }
                        },
                        report: report,
                    });
                } catch(error) {
                    i++;
                    pivot.off("exportcomplete");
                    if (i < liste_report.length) {
                        loadReport();
                    }
                }
            }
            function generateExcel(pivot_r) {
                var params = {
                  filename : 'test' + i + '.xlsx', 
                  destinationType : 'server',
                  url : lien_webservice
                };
                flexmonster.exportTo('Excel', params);   
            }

and report is
 
{"dataSource":{"dataSourceType":"json","filename":"../files/source.php"},"slice":{"rows":[{"uniqueName":"Periode.Year","caption":"Année"},{"uniqueName":"Periode.Month","caption":"Mois","filter":{"members":["periode.month.[août]"]}}],"columns":[{"uniqueName":"Periode.Day","caption":"Jour","filter":{"members":["periode.day.[2]","periode.day.[1]"]}},{"uniqueName":"[Measures]"}],"measures":[{"uniqueName":"nbr_appel","aggregation":"sum","caption":"Nombre appels","grandTotalCaption":"Total Nombre appels"},{"uniqueName":"durée TMC appel","formula":"sum(\"sum_duree\") / count(\"nbr_appel\")","caption":"durée TMC appel"},{"uniqueName":"Total durée appels","formula":"sum(\"sum_duree\")","caption":"Total durée appels"},{"uniqueName":"Total durée attente","formula":"sum(\"sum_about_attente\")","caption":"Total durée attente"},{"uniqueName":"Total nombre appel","formula":"count(\"nbr_appel\")","caption":"Total nombre appel"},{"uniqueName":"Durée attente Moy.","formula":"sum(\"sum_about_attente\") / count(\"nbr_appel\")","caption":"durée attente Moy."},{"uniqueName":"sum_duree","aggregation":"sum","caption":"Temps de comm.","active":false},{"uniqueName":"sum_duree_sonnerie","aggregation":"sum","caption":"Temps de sonnerie.","active":false},{"uniqueName":"sum_about_attente","aggregation":"sum","caption":"Temps d'attente","active":false},{"uniqueName":"nom_about_groupe","aggregation":"count","caption":"Groupe","active":false,"availableAggregations":["count","distinctcount"]},{"uniqueName":"status_appel","aggregation":"count","caption":"Statut appel","active":false,"availableAggregations":["count","distinctcount"]},{"uniqueName":"sous_status_appel","aggregation":"count","caption":"Statut Callback","active":false,"availableAggregations":["count","distinctcount"]},{"uniqueName":"nom_rubrique","aggregation":"count","caption":"Rubrique","active":false,"availableAggregations":["count","distinctcount"]},{"uniqueName":"operateur_name","aggregation":"count","caption":"Opérateur","active":false,"availableAggregations":["count","distinctcount"]},{"uniqueName":"appels_aband_moin_15s","aggregation":"sum","caption":"Appel abandonnée en moins de 15s","active":false},{"uniqueName":"duree_svi","aggregation":"sum","caption":"Durée SVI","active":false},{"uniqueName":"duree_post_appel","aggregation":"sum","caption":"Durée post appel","active":false},{"uniqueName":"temps_attente_x","aggregation":"sum","caption":"Temps attente ≤ 8 sec","active":false},{"uniqueName":"temps_attente_y","aggregation":"sum","caption":"Temps attente ≤ 10 sec","active":false}],"sorting":{"row":{"type":"desc","tuple":["periode.year.[2020]"],"measure":{"uniqueName":"nbr_appel","aggregation":"sum"}}},"expands":{"rows":[{"tuple":["periode.year.[2020]"]}]}},"options":{"grid":{"title":"test long222"},"chart":{"title":"test long222"}}}

Thanks a lot.
 

hi illia .
yes, my problem had been resolved.
thanks a lot for new version and your reponse,
have a good day !
            Long YU