php - CSV file uploading as C:xampp mpphpBAED.tmp

one text

I am using symfony and I am trying to upload csv a file that contains emails but it's uploading as C:\xampp\tmp\phpBAED.tmp (I am a beginner so I'd very much appreciate the help )

 $emails = new Emails(); 
 $errors = $validator->validate($emails);

 $form = $this->createForm(EmailsType::class); 
     $form->handleRequest($request); 

      if($form->isSubmitted() && $form->isValid()) 
      { 
         
          $emails = $form->getData(); 
           $entityManager = $this->getDoctrine()->getManager();
           $entityManager->persist($emails); 
                     
           $entityManager->flush(); 
           $this->addFlash('success', 'emails saved');
           return $this->redirectToRoute('groupe_mail'); 

         }

      

Emailstype :

  $builder
       ->add('Email',FileType::class)
        ->add('idGroupe')
        ->add('save', SubmitType::class)
    ;