attempt #3

api/views.py

@@ -429,10 +429,11 @@ def xls_to_csv(request):
         data_xls = pd.read_excel(full_path, sheet_name=target_sheet, index_col=None)
         csv_file_name = create_random_filename('players', 'csv')
         output_path = os.path.join(directory, csv_file_name)
-        data_xls.to_csv(output_path, sep=';', index=False, encoding='utf-8')
+        full_output_path = default_storage.path(output_path)
+        data_xls.to_csv(full_output_path, sep=';', index=False, encoding='utf-8')
 
         # Send the processed file back
-        with default_storage.open(output_path, 'rb') as file:
+        with default_storage.open(full_output_path, 'rb') as file:
             response = HttpResponse(file.read(), content_type='application/octet-stream')
             response['Content-Disposition'] = f'attachment; filename="players.csv"'