Hi there,
Yeah sure. I've very simple solution: You'll specify folders and files on app GUI, and it will delete all in one click. Of course you won't need to specify folders and files every time you run the app. It will save your settings.
Your app is going to be completely standalone -- only double-click and use. And of course 100% offline.
Let me know if you have any questions.
Best regards,
Ishaq