DigitalVolcano Software Support

First, I have clicked on the pen in the Skip files/folders in Ignore list but and I get an error open file: Application not found. I am assuming it means it can't find my Notepad++. How do I assign Notepad++ as the default editor?
Second, I went to the ""C:\Users\pnach\AppData\Roaming\DigitalVolcano\DuplicateCleaner\ignorelist.txt"" directory to make an ignorelist there.
I found no information on what the proper name for the ignorelist.txt should be.
Third, I created an ignorelist.txt that contains
*\ipynb_checkpoints\
*\__pycache__\
*\.git
*\.gitignore
*\.venv\
*\.vscode\

I have not been able to get the ignore list feature to work.

The ignore list doesn't take wildcards - only complete folder/file names:

E.g. You can add folders/files to it from the Duplicate files list (context menu)
See:
https://www.digitalvolcano.co.uk/duplic ... =&sct=NDY4

There is an issue with the file opening for editing from the App Store version of the program - is that the version you are using?

Looking at your list, you may want the Search filter ignore feature instead. It's under search filters (uncheck 'all file extensions).
You can add items, semicolon separated, to the Excluded box.
eg Click the 'Apply exclusions to folder names too' setting if needed