diff --git a/components/Crud.php b/components/Crud.php
index eadee7d..f4bd951 100644
--- a/components/Crud.php
+++ b/components/Crud.php
@@ -1062,7 +1062,7 @@ public function export(CrudExportForm $model)
             'renderData' => (bool)$model->renderData,
             'model' => $this->getModel('search'),
             'dataProvider' => $this->getDataProvider(),
-            'columns' => $this->guessColumns($this->getFields()),
+            'columns' => $this->getConfig('exportColumns', $this->guessColumns($this->getFields())),
         ]);
         return $exporter->export();
     }
diff --git a/components/CrudImport.php b/components/CrudImport.php
index 2e0bdb6..be7caf7 100644
--- a/components/CrudImport.php
+++ b/components/CrudImport.php
@@ -9,6 +9,7 @@
 use Yii;
 use yii\base\BaseObject;
 use yii\db\Schema;
+use yii\helpers\ArrayHelper;
 
 /**
  * Class CrudImport
@@ -108,6 +109,10 @@ public function import()
 
             /* @var $model \yii\db\ActiveRecord */
             $model = new $this->modelClass;
+            if ($id = ArrayHelper::getValue($values, 'id')) {
+                $model->id = $id;
+                $model->setIsNewRecord(false);
+            }
             $model->setAttributes($values);
 
             if ($model->save()) {