How to convert this 'array' With FeedMe I'm importing some data and one of them I get is a complete array that is stored a plain text field.

This array is a bunch of car options what I want to add in a table like this:

{% set options = entry.optionsAndAccessoiries %}

output {{ options }} = ["Achterbank in delen neerklapbaar","Airbag bestuurder","Airconditioning","Anti-slipregeling","Antiblokkeersysteem","Centrale deurvergrendeling afstandbediend","Elektrisch bedienbare ramen voor","Elektrisch verstelbare buitenspiegels","Getint glas","Hoofdsteunen achter","Hoofdsteunen voor","In hoogte verstelbare bestuurdersstoel","Metallic lak","Middenarmsteun voor","Mistlampen voor","Radio\/CD speler","Startonderbreker","Stoelverwarming bestuurder","Stoffen bekleding","Stuurbekrachtiging","Trekhaak","Verstelbaar stuurwiel"]

{% set items = options %}

 &lt;table&gt;
  {% for row in items|batch(3, 'No item') %}
  &lt;tr&gt;
    {% for column in row %}
    &lt;td&gt;{{ column }}&lt;/td&gt;
    {% endfor %}
  &lt;/tr&gt;
  {% endfor %}
&lt;/table&gt;


But this is causing an error:

array_chunk() expects parameter 1 to be array, string given


Who can help me out to point me in the right direction?
Sounds like your options simply need to be JSON decoded. Unfortunately, Twig doesn't ship with a json_decode filter, so you'll need a plugin – there are several that fit the bill over at StraightUpCraft.

Using the JSON Decode Filter plugin, here's how your code would look:

{% set options = entry.optionsAndAccessoiries|json_decode %}
...