Tomtom XL files on the device when new

Hi
I have a secondhand XL v9 where I have changed the files several times over the years in order to keep it working ( ie navcore 9.541 etc)
I am sure I have several files/folders on the device which are junk so I want to know if there is a list somewhere of the files installed on the XL when new so I can compare with my device and get back some space
thanks

You'll save very little if anything by deleting old/unused files as the VAST majority of your device will be the map folder(s) themselves. Voices could be about 1Mb or so only. Why not just use a larger SD card if you've a slot or try a search for "soldering"