Feed Me: How to format CSV data for a table field
You can create a feed-me.php file under your /config directory, then you can configure the data delimiter:

&lt;?php

return [
    '*' =&gt; [
        'pluginName' =&gt; 'Feed Me',
        'dataDelimiter' =&gt; '-|-',
    ]
];


On my side, that is not working all the time (if almost never), but the doc says it should! 

(https://verbb.io/craft-plugins/feed-me/docs/get-started/configuration)

(https://github.com/verbb/feed-me/issues/449  ---> created just now)