Doubt with SweetAlert, can not send more than 1 file

I have a code that will send files to be recorded, at the moment I can only record 1 file, the rest does not come, thanks for the help!

<script>

                swal({
                  input: 'file',
                  inputAttributes: {
                    'multiple':'multiple',
                    'accept': '*',
                    'aria-label': 'Upload your profile picture'
                  }
                })
                .then(({value: file}) => {

                if (file) {
                  const reader = new FileReader
                  reader.onload = (arquivos) => {
                    let uploadForm = new FormData();

                    uploadForm.append("arquivo", file);

                    $.ajax({
                        type: 'POST',
                        url: 'http://localhost:59360/Home/IncluirImagemUsuario',
                        mimeType: 'multipart/form-data',
                        contentType: false,
                        processData: false,
                        data: uploadForm,
                        success: function (result) {
                            result = JSON.parse(result)
                            if (result.Erro) {
                                return erro(result.Erro.Mensagens.join('<br>'))
                            }
                        }
                    });
                  }

                  reader.readAsDataURL(file)
                }
             })

    </script>

In the controller I have:

[HttpPost]
        public ActionResult IncluirImagemUsuario()
        {

            foreach (string item in Request.Files)
            {
                HttpPostedFileBase file = Request.Files[item] as HttpPostedFileBase;
                string fileName = file.FileName;
                string UploadPath = "~/Content/Arquivos";

                if (file.ContentLength == 0)
                    continue;

                if (file.ContentLength > 0)
                {
                    //grava a imagem da pasta
                    string path = Path.Combine(HttpContext.Request.MapPath(UploadPath), fileName);
                    string extension = Path.GetExtension(file.FileName);
                    file.SaveAs(path);
                }


            }

            return Json(new
            {
                message = "Registro inserido com sucesso",
                success = true
            });
        }