diff --git a/lib/util.php b/lib/util.php
index c7ab7fa0e..d8e5655e4 100755
--- a/lib/util.php
+++ b/lib/util.php
@@ -544,10 +544,12 @@ if (!function_exists('temp_file')) {
             $name = secure_random_string();
         }
 
-        $file = DIRECTORY_SEPARATOR.
+        /*$file = DIRECTORY_SEPARATOR.
             trim(sys_get_temp_dir(), DIRECTORY_SEPARATOR).
             DIRECTORY_SEPARATOR.
-            ltrim($name, DIRECTORY_SEPARATOR);
+            ltrim($name, DIRECTORY_SEPARATOR);*/
+
+        $file = implode(DIRECTORY_SEPARATOR, [base_dir(), 'files', 'temp', ltrim($name, DIRECTORY_SEPARATOR)]);
 
         file_put_contents($file, $content);
 
diff --git a/modules/fatture/bulk.php b/modules/fatture/bulk.php
index 6b5570692..fbdf919bb 100755
--- a/modules/fatture/bulk.php
+++ b/modules/fatture/bulk.php
@@ -431,7 +431,8 @@ switch (post('op')) {
         break;
 
     case 'export-csv':
-        $file = temp_file();
+        $file = temp_file().'.csv';
+       
         $exporter = new CSV($file);
 
         // Esportazione dei record selezionati