如何繼續使用下載的文件？將其解析為模型views.pydef model_form_upload(request):if request.method == 'POST':    form = DocumentForm(request.POST, request.FILES)    if form.is_valid():        form.save()        return redirect('home')else:    form = DocumentForm()return render(request, 'core/model_form_upload.html', {    'form': form})my model.pyclass Document(models.Model):description = models.CharField(max_length=255, blank=True)document = models.FileField(upload_to='documents/')uploaded_at = models.DateTimeField(auto_now_add=True)class Parameters(models.Model):par_time = models.DateTimeField('date')par_recipe = models.CharField(max_length=200)par_machine = models.CharField(max_length=200)par_fa = models.CharField(max_length=200)par_ag_typ = models.CharField(max_length=200)par_rollennr = models.IntegerField(default=0)par_definition_id = models.IntegerField(default=0)par_name = models.CharField(max_length=200)par_value = models.IntegerField(default=0)用于下載 Excel 文件 (xlsx)。xlsx 中的字段按照模型中的描述表示。一旦我沒有嘗試，我是 Django 的新手，我一無所有