Plug your Tablet into the USB of your computer. You will get a message about being able to view the contents of the tablet. Allow this.
Then thru Microsoft Windows, navigate to the following directory and store the DBC file in it:
[computer name]\Xperia Z3 Tablet Compact\Internal storage\DCIM\Siemens\Dbc
This directory could be a little different depending on the tablet you use.
Also make sure to turn on the 'CAN Visualization' for the desire channels in the CAN setup. More details here: