Grid export to xlxs file open error

[ljfreedom]

When I use excel 2017 open file .it becomes wrong

Here is the code,and attachments with the file and picture

var blob = table.pqGrid("exportData",{format:'xlsx'});
       if(typeof blob === "string"){                           
            blob = new Blob([blob]);
        }
        saveAs(blob, fileNme+".xlsx" );