$VAR1 = {
          'doc' => {
                     'word2' => [
                                  '334',
                                  'is'
                                ],
                     'word1' => [
                                  '234',
                                  'thing'
                                ]
                   },
          'xls' => {
                     'excel2' => [
                                   '12',
                                   'more'
                                 ],
                     'excel1' => [
                                   '12',
                                   'some'
                                 ]
                   }
        };