Audio download file name

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Question about filename of downloaded The Tech Guy mp3 files

IIRC, episode 1716 and before, the filename is always started with ttg than a four-digit episode number. Since Aug 8, 2020, the filename format has changed to TWI foolows by 10 digit number. For example, the Aug 8, 20 file is TWI1091096116.mp3 . Is there an easy way to convert this naming convention to the old format?