backend/components/parsers/config.php

<?php
 return [
     'global' =>
         ['ini' => ['upload_max_filesize' => '20M',
                    'post_max_size integer' => '30M',
         ]],
     'csv' =>
         ['web' =>
             ['class' => 'backend\components\parsers\CustomCsvParser',
                 'auto_detect_first_line' => true,
                 'converter_conf' => ['class' => ' backend\components\parsers\CustomConverter',
                                        'configuration' => ["string"   => 'DESCR'],]
             ],
             'basic_column' => [
                 Null  => 'Пусто',
                 "BRAND"  => 'Бренд',
                 "ARTICLE"=> 'Артикул',
                 "PRICE"  => 'Цена',
                 "DESCR"  => 'Наименование',
                 "BOX"    => 'Колво',
                 "ADD_BOX"=> 'В пути',
                 "GROUP"  => 'Группа RG'
             ],
             ],
      'xml' =>
         ['web' =>
             ['class' => 'yii\multiparser\XmlParser',
                 'node' => 'Товар',],
             'basic_column' => [
                 "BRAND"  => 'Производитель',
                 "ARTICLE"=> 'Код',
                 "PRICE"  => 'Розница',
                 "DESCR"  => 'Наименование',
                 "BOX"    => 'Колво',
                 "ADD_BOX"=> 'Ожидаемое',
                 "GROUP"  => 'Группа'
             ],
         ]
 ];
//[
//    "float"   => 'PRICE',
//    "integer" => ['BOX' , 'ADD_BOX' ],
//    "prefix"  => 'ARTICLE'
//]