diff --git a/app/Http/Requests/StoreEntity.php b/app/Http/Requests/StoreEntity.php
index 4f38524..d38922f 100644
--- a/app/Http/Requests/StoreEntity.php
+++ b/app/Http/Requests/StoreEntity.php
@@ -30,4 +30,16 @@ public function rules()
             'explanation' => 'required|max:255',
         ];
     }
+
+    public function withValidator($validator)
+    {
+        $validator->after(function ($validator) {
+            $data = $validator->safe();
+
+            if (! empty($data['file']) && ! empty($data['metadata'])) {
+                $validator->errors()->add('file', 'You cannot provide both a file and metadata. Please choose one.');
+                $validator->errors()->add('metadata', 'You cannot provide both metadata and a file. Please choose one.');
+            }
+        });
+    }
 }
diff --git a/resources/views/federations/index.blade.php b/resources/views/federations/index.blade.php
index ddd0f37..b465921 100644
--- a/resources/views/federations/index.blade.php
+++ b/resources/views/federations/index.blade.php
@@ -1,10 +1,6 @@
 @extends('layouts.index')
 @section('title', __('common.federations'))
 
-
-
-
-
 @section('adminOnly_action')
     <x-buttons.subhead href="{{ route('federations.import') }}">{{ __('common.import') }}</x-buttons.subhead>
     <x-buttons.subhead href="{{ route('federations.refresh') }}">{{ __('common.refresh') }}</x-buttons.subhead>
@@ -25,7 +21,4 @@
         @endif
     @endif
 
-
-
-
 @endsection