diff --git a/src/Bundle/ChillMainBundle/Export/Formatter/SpreadsheetListFormatter.php b/src/Bundle/ChillMainBundle/Export/Formatter/SpreadsheetListFormatter.php
index c2c56df39..2e5bef60c 100644
--- a/src/Bundle/ChillMainBundle/Export/Formatter/SpreadsheetListFormatter.php
+++ b/src/Bundle/ChillMainBundle/Export/Formatter/SpreadsheetListFormatter.php
@@ -13,6 +13,7 @@ namespace Chill\MainBundle\Export\Formatter;
 
 use Chill\MainBundle\Export\ExportGenerationContext;
 use Chill\MainBundle\Export\ExportManagerAwareInterface;
+use Chill\MainBundle\Export\FormattedExportGeneration;
 use Chill\MainBundle\Export\FormatterInterface;
 use Chill\MainBundle\Export\Helper\ExportManagerAwareTrait;
 use PhpOffice\PhpSpreadsheet\Shared\Date;
@@ -21,6 +22,7 @@ use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
 use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Contracts\Translation\TranslatorInterface;
 
@@ -46,15 +48,7 @@ class SpreadsheetListFormatter implements FormatterInterface, ExportManagerAware
 
     protected $result;
 
-    /**
-     * @var TranslatorInterface
-     */
-    protected $translator;
-
-    public function __construct(TranslatorInterface $translatorInterface)
-    {
-        $this->translator = $translatorInterface;
-    }
+    public function __construct(private readonly TranslatorInterface $translator) {}
 
     /**
      * build a form, which will be used to collect data required for the execution
@@ -66,7 +60,7 @@ class SpreadsheetListFormatter implements FormatterInterface, ExportManagerAware
      */
     public function buildForm(
         FormBuilderInterface $builder,
-        $exportAlias,
+        string $exportAlias,
         array $aggregatorAliases,
     ): void {
         $builder
@@ -113,26 +107,8 @@ class SpreadsheetListFormatter implements FormatterInterface, ExportManagerAware
         return 'Spreadsheet list formatter (.xlsx, .ods)';
     }
 
-    /**
-     * Generate a response from the data collected on differents ExportElementInterface.
-     *
-     * @param mixed[] $result          The result, as given by the ExportInterface
-     * @param mixed[] $formatterData   collected from the current form
-     * @param string  $exportAlias     the id of the current export
-     * @param array   $aggregatorsData an array containing the aggregators data. The key are the filters id, and the value are the data
-     * @param array   $filtersData     an array containing the filters data. The key are the filters id, and the value are the data
-     *
-     * @return Response The response to be shown
-     */
-    public function getResponse(
-        $result,
-        $formatterData,
-        $exportAlias,
-        array $exportData,
-        array $filtersData,
-        array $aggregatorsData,
-        ExportGenerationContext $context,
-    ) {
+    public function generate($result, $formatterData, string $exportAlias, array $exportData, array $filtersData, array $aggregatorsData, ExportGenerationContext $context): FormattedExportGeneration
+    {
         $this->result = $result;
         $this->exportAlias = $exportAlias;
         $this->exportData = $exportData;
@@ -204,19 +180,45 @@ class SpreadsheetListFormatter implements FormatterInterface, ExportManagerAware
                 throw new \OutOfBoundsException('The format '.$this->formatterData['format'].' is not supported');
         }
 
-        $response = new Response();
-        $response->headers->set('content-type', $contentType);
-
         $tempfile = \tempnam(\sys_get_temp_dir(), '');
         $writer->save($tempfile);
 
-        $f = \fopen($tempfile, 'rb');
-        $response->setContent(\stream_get_contents($f));
-        fclose($f);
+        $generated = new FormattedExportGeneration(
+            file_get_contents($tempfile),
+            $contentType,
+        );
 
         // remove the temp file from disk
         \unlink($tempfile);
 
+        return $generated;
+    }
+
+    /**
+     * Generate a response from the data collected on differents ExportElementInterface.
+     *
+     * @param mixed[] $result          The result, as given by the ExportInterface
+     * @param mixed[] $formatterData   collected from the current form
+     * @param string  $exportAlias     the id of the current export
+     * @param array   $aggregatorsData an array containing the aggregators data. The key are the filters id, and the value are the data
+     * @param array   $filtersData     an array containing the filters data. The key are the filters id, and the value are the data
+     *
+     * @return Response The response to be shown
+     */
+    public function getResponse(
+        $result,
+        $formatterData,
+        $exportAlias,
+        array $exportData,
+        array $filtersData,
+        array $aggregatorsData,
+        ExportGenerationContext $context,
+    ) {
+        $generated = $this->generate($result, $formatterData, $exportAlias, $exportData, $filtersData, $aggregatorsData, $context);
+
+        $response = new BinaryFileResponse($generated->content);
+        $response->headers->set('Content-Type', $generated->contentType);
+
         return $response;
     }