How to convert 1M data in to 1H data?

[fexception]

Hi all,

I have about 10 years of 1M data in an HST file. I was thinking maybe when I run a backtest with an EA on the 1H timeframe, it would auto convert. Unfortunately it did not. 

Is there a script that will convert my 1M historical data in to 1H? How would I go about doing that?

Thanks!