fix export excel

public/export.php

@@ -140,7 +140,7 @@ $output = fopen('php://output', 'w');
 fwrite($output, "\xEF\xBB\xBF");
 
 // Write CSV header row
-fputcsv($output, $columns_to_export);
+fputcsv($output, $columns_to_export, ",", "\"", "\\");
 
 // Write all rows
 foreach ($allRows as $row) {
@@ -152,7 +152,7 @@ foreach ($allRows as $row) {
         }
         $exportRow[] = $val;
     }
-    fputcsv($output, $exportRow);
+    fputcsv($output, $exportRow, ",", "\"", "\\");
 }
 
 fclose($output);