Big difference between "page" and "download" display

Hi everyone,

Here has a big difference between “page” fuction display and “download”.
For example,

When I check the “page” by class, it shows every classes clearly like the screenshot below


but when I trun to the “download” page by class shown mode, it just show the directory togerther without classification.

Why is that? can the download page show the clear class?

Regards,
PICK