How to convert 1 min data to higher time frame ?

Hi Dear Traders.

Can anyone suggest a software which can import 1 min data (ascii format)
then convert it to a higher time frame (5, 10, 15, 60 min) and export the
result to another file in ascii format ?

I really looked left and right and couldn't find anything at all. Will be extremely
gratefull for a helpful suggestion.

TIA!
jb

...perhaps this helps:

http://www.traderji.com/software/26470-zen-intraday-eod-converter-v2-0-freeware.html

bye,
zentrader