Liquid Files Setup Once LiquidFiles is installed via the AppStore, open the app. In the app click on "Thanks, let's start!" In the field to enter the server, enter "sendfiles.ndus.edu" and click Connect. When signing in use the Email / Password method, the email is first.last@und.edu and then your password. Once logged in, it should look like this. To upload a file or request one click on the cloud icon. To send a message, click on the envelope icon.