File Browser is installed on the seedbox and enables you to access your files though a nice web interface in your browser.
Files can be uploaded/downloaded, renamed, deleted, copied and shared all inside the File Browser application.
Please note: Filebrowser requires passwords to be at least 8 characters long and not consist of numbers only so before installing make sure your password meets these requirements.
This application would need to be installed in the client area on the applications page.
In the client area go to Services > Green Active Button > Application

Once the applications page loads locate File Browser in the list and click the green Install button to initiate the install.

Once the install of File Browser is complete you can go to the Installed Applications page to access.
In the client area go to Services > Green Active Button > Installed Applications

Once the installed applications page loads you can locate the File Browser application and click the Go to application button to access.

The FileBrowser login uses your service username and password, this is the same username/password you use for ruTorrent/FTP.

When logged into File Browser click the settings button in the left hand column.

Now enter your new password twice and click update.

Troubleshooting
Files and folders created in Filebrowser may not be visible to other applications. This issue occurs because Filebrowser does not adhere to the server’s UMASK values.