Now is the thirdth project I need ot create a Template to list all files uploaded to the Media Library, to found a solution I have to serach and try to much.
Why we don´t have an option to use archive-attachment.php as we have attachment.php for single attachments?
Then it could be easy to filter the files using
Other could be filtered the attachments if they are inside a post or not.
I know also need to create a new url like wordpress/attachment or /attachments.
Then make a gallery image or a download files archive page could be very very easy :)