Convert Epoch time using filters

I am trying to convert the meta_value of one of my meta_keys from Epoch time to a date string. I cannot seem to access the object of the selected meta fields that I choose within the export screen.

Is it possible to filter this data prior to exporting? I also do not want to update the value within the database itself, therefore I’m trying to avoid using update_user_meta().

Here is the function I have created thus far, though I realize “export_user_data_user_field” is probably the wrong object.

function format_expire_date($date) {

    $users = get_users();
    $user_group = array(); 

    foreach ( $users as $user ) {
         $user_id = $user->ID;
         $key = '_expire_user_date';
         $single = true;
         $epoch = get_user_meta( $user_id, $key, $single ); 

         $formatted_date = date('d-m-Y H:i:s', $epoch);

        $date->set( 'meta_key', '_expire_user_date' );
        $date->set( 'meta_value', $formatted_date );

    } 

    return $date;

}
add_filter('export_user_data_user_field', 'format_expire_date');

https://ww.wp.xz.cn/plugins/export-user-data/