Update app.py

app.py

@@ -432,7 +432,7 @@ def download_excel():
         return None, "Error: Carga los datos primero."
 
     # Create a temporary file
-    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix='.xlsx')
+    temp_file = zipfile.NamedTemporaryFile(delete=False, suffix='.xlsx')
     
     with pd.ExcelWriter(temp_file.name, engine='xlsxwriter') as writer:
         rsm.data.to_excel(writer, sheet_name='Datos', index=False)
@@ -452,7 +452,7 @@ def download_images():
         return None, "Error: No se han generado gráficos."
 
     # Create a temporary file
-    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix='.zip')
+    temp_file = zipfile.NamedTemporaryFile(delete=False, suffix='.zip')
     
     with zipfile.ZipFile(temp_file.name, 'w', zipfile.ZIP_DEFLATED) as zipf:
         for i, fig in enumerate(plot_images):
@@ -477,7 +477,7 @@ def generate_rsm_plot(fixed_variable, fixed_level):
     fig = plot_images[current_plot_index]
 
     # Create a temporary file for the image
-    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix='.png')
+    temp_file = zipfile.NamedTemporaryFile(delete=False, suffix='.png')
     fig.write_image(temp_file.name)
     
     return fig, "", temp_file.name