diff --git a/app/Http/Controllers/ImportController.php b/app/Http/Controllers/ImportController.php
index 7c19bde59e..9b78b82995 100644
--- a/app/Http/Controllers/ImportController.php
+++ b/app/Http/Controllers/ImportController.php
@@ -368,14 +368,30 @@ class ImportController extends Controller
         $content          = $uploaded->fread($uploaded->getSize());
         $contentEncrypted = Crypt::encrypt($content);
         $disk             = Storage::disk('upload');
-        $disk->put($newName, $contentEncrypted);
 
-        Log::debug('Uploaded file', ['name' => $upload->getClientOriginalName(), 'size' => $upload->getSize(), 'mime' => $upload->getClientMimeType()]);
+        // user is demo user, replace upload with prepared file.
+        if (auth()->user()->hasRole('demo')) {
+            $stubsDisk        = Storage::disk('stubs');
+            $content          = $stubsDisk->get('demo-import.csv');
+            $contentEncrypted = Crypt::encrypt($content);
+            $disk->put($newName, $contentEncrypted);
+            Log::debug('Replaced upload with demo file.');
 
-        // store configuration file's content into the job's configuration
-        // thing.
-        // otherwise, leave it empty.
-        if ($request->files->has('configuration_file')) {
+            // also set up prepared configuration.
+            $configuration      = json_decode($stubsDisk->get('demo-configuration.json'), true);
+            $job->configuration = $configuration;
+            $job->save();
+            Log::debug('Set configuration for demo user', $configuration);
+        }
+        if (!auth()->user()->hasRole('demo')) {
+            // user is not demo, process original upload:
+            $disk->put($newName, $contentEncrypted);
+            Log::debug('Uploaded file', ['name' => $upload->getClientOriginalName(), 'size' => $upload->getSize(), 'mime' => $upload->getClientMimeType()]);
+        }
+
+        // store configuration file's content into the job's configuration thing. Otherwise, leave it empty.
+        // demo user's configuration upload is ignored completely.
+        if ($request->files->has('configuration_file') && !auth()->user()->hasRole('demo')) {
             /** @var UploadedFile $configFile */
             $configFile = $request->files->get('configuration_file');
             Log::debug(
@@ -394,6 +410,9 @@ class ImportController extends Controller
             }
         }
 
+        // if user is demo user, replace config with prepared config:
+
+
         return redirect(route('import.configure', [$job->key]));
 
     }
diff --git a/config/filesystems.php b/config/filesystems.php
index cac819789e..ba8b6b6eb9 100644
--- a/config/filesystems.php
+++ b/config/filesystems.php
@@ -73,6 +73,11 @@ return [
             'driver' => 'local',
             'root'   => base_path('resources/seeds'),
         ],
+        'stubs'    => [
+            'driver' => 'local',
+            'root'   => base_path('resources/stubs'),
+        ],
+
         'public' => [
             'driver'     => 'local',
             'root'       => storage_path('app/public'),