Default Where does the HP TouchPad save it's text files?

Hey XDA,

I have the TouchPad of a friend here, the battery died 2 years ago and she wanted to get some files off of it now, so I replaced the battery and now it's asking me for a PIN which she of course doesn't know anymore. No problem, TouchPad Toolbox, mount the internal storage as USB-device and boom I have access to it. Now a lot of her stuff is there but I can't seem to find some text files she created in the stock text-app, I searched literally everywhere but I couldn't find any text-files.

Can you tell me how I can find those?

Thanks in advance for your time and help.

edit:

If I could somehow change the PIN it would be a lot easier but I don't have the developer-mode enabled.