The files holding the track data can be found in the following location on Windows 10 –

\Users\<username>\AppData\Roaming\Mobile Action\atrip\Resource

Within that folder you will find a number of subfolders as shown below, actual names will be different but will follow a similar format.

These folders contain the actual track data.

If you backup the folder as detailed above you will include all of these folders with their data.