Hello, please follow the steps below:
1. Run Anytxt, Tools -> Index Manager -> File Type, and edit the index rules (include path and exclude path);
2. Stop Anytxt Index Service and exit the Anytxt program completely;
3. Enter the Anytxt installation directory and delete C.db, D.db…;
4. Run Anytxt, it will re-index according to the new rules.
This is how I did it, hope it helps.