Upon Receiving the Seedbox Details, click on File Manager you will see a page like this, File Manager will be disabled when you begin for Security Purposes.



However You can Enable it by clicking on the Box named Enable HTTP, And Again to Disable it just click on Disable HTTP.



Once Enabled, you will see multiple Folder's or Files, Navigate your way to files and the click on them to Download.

It is highly Recommended to your Internet Download Manager, as it is best when it comes to downloading at optimal speed :).