public function postDataUploaded(Request $req)
 {
     // dd($req->all());
     // ->skip($offset)
     //    ->take($perpage)
     //    ->get();
     $page = 1;
     if ($req->get('page')) {
         $page = $req->get('page');
     }
     $rows = 10;
     if ($req->get('rows')) {
         $rows = $req->get('rows');
     }
     $entries = Fileentry::skip($page)->take($rows)->paginate();
     // dd($rows);
     // dd($entries->toArray());
     $result['total'] = $entries->toArray()['total'];
     $result['rows'] = $entries->toArray()['data'];
     return json_encode($result);
     # code...
 }