Once you have created your netFiles folder (See Configuring PC Folders), you can transfer or copy files from other folders or drives, such as your My Documents folder, to netFiles.
Leave this folder open and open your netfiles folder.
You now have two windows open, one is the folder you are transferring from (ex: My Documents) and the other is the netFiles folder.
Once completed, all of your file(s) or folder(s) that you transferred are backed-up in netFiles. You can verify this by checking with netFiles Web.