Make October Import/Export feature compatible with Excel CSV (;) easily for your ends users

Plugin.php

<?php namespace Your\Plugin;

use Event;
use System\Classes\PluginBase;

class Plugin extends PluginBase
{
    // [...]
    
    /**
     * Boot method, called right before the request route.
     */
    public function boot()
    {
        // Import form
        Event::listen('system.extendConfigFile', function ($publicFile, $config) {
            if ($publicFile !== '/modules/backend/behaviors/importexportcontroller/partials/fields_import.yaml') {
                return null;
            }

            array_set($config, 'fields.format_preset.default', 'custom');
            array_set($config, 'fields.format_delimiter.default', ';');

            array_set($config, 'fields.format_preset.cssClass', 'hidden');
            array_set($config, 'fields.format_delimiter.cssClass', 'hidden');
            array_set($config, 'fields.format_enclosure.cssClass', 'hidden');
            array_set($config, 'fields.format_escape.cssClass', 'hidden');
            array_set($config, 'fields.format_encoding.cssClass', 'hidden');

            array_set($config, 'fields.first_row_titles.cssClass', 'hidden');

            return $config;
        });

        // Export form
        Event::listen('system.extendConfigFile', function ($publicFile, $config) {
            if ($publicFile !== '/modules/backend/behaviors/importexportcontroller/partials/fields_export.yaml') {
                return null;
            }

            array_set($config, 'fields.format_preset.default', 'custom');
            array_set($config, 'fields.format_delimiter.default', ';');

            array_set($config, 'fields.format_preset.cssClass', 'hidden');
            array_set($config, 'fields.format_delimiter.cssClass', 'hidden');
            array_set($config, 'fields.format_enclosure.cssClass', 'hidden');
            array_set($config, 'fields.format_escape.cssClass', 'hidden');

            array_set($config, 'fields.step1_section.hidden', true);
            array_set($config, 'fields.step2_section.label', 'Select columns to export');

            // array_set($config, 'fields.export_columns.cssClass', 'hidden'); // uncomment this line if you don't want to choose columns

            return $config;
        });
    }
}