Update app.py

app.py

@@ -276,10 +276,10 @@ def server(input, output, session):
             fig.subplots_adjust(left=0.01, right=0.99, top=0.99, bottom=0.01)
 
 
-    @session.download(filename="sample_data.csv")
+    @session.download()
     def download():
         # When running in Hugging Face space, we need to use a temporary file
-        yield cached_data().write_csv()
+        yield cached_data().write_csv('data.csv')
 
 
 app = App(app_ui, server)