If you want to edit some files directly or just download them as a backup you need to do this through an FTP client. We recommend Filezilla. You can download it here:
https://filezilla-project.org/download.php?show_all=1
After you download Filezilla just run the setup.
Then click this button:
New site:
You can enter any name you want:
As the host you need to enter the IP address we provided you with in the member's area:
Logon type: normal
User and password: the ones we gave you in the member's area:
Change transfer mode to Active:
That's it, now you can click Connect:
Now you see all your file in this window:
You can edit, upload, download, and delete files.