Remove Track Numerals

Hi!
i tried to remove my tracks Numerals but i was unable to do that.

samples:

0023Mary J Blige and U2 - One
i wanna remove those numerals (0023)

and how can i edit this one too?

102_erick_e_-_this_beat_is_rockin

Can anyone tell me how to do that?

To repalce the '' you can go to actions (Quick), then to replace.
Choose the field, where the string is (probably filename).
In Original you write '
' (without quotes).
In Replace with you write ' '.
Then you have the numeral problem again, but i unfortunately don't know a solution.

Make a new action

Action type: Replace with regular expressions
Field: FILENAME
Regular expression: ^\d+?
Replace matches with: