It is a very useful utility, however two modifications may make it indispensable for day traders who want to consult TA along with day trading--
1) Open ,high ,low may be changed from Day open, Day high, Day low to
5 minutes open,high,low.
2) Each day separate folder is created but intraday data may be stored in continuous basis i.e in a single folder storing several days intraday data.
Many indicators may not work properly because of absence of adequate data if separate folder is created daily.
However I have a very little knowledge about computer/ programming /trading , so I am sorry for my above view if there is anything wrong.