Does anyone knows a good (free) charting tool to import ASCII data? I have min-data interval data of the EUR/USD for 2004-2005. I use this for my dissertation on EUR/USD seasonality. The problem is that I want to have 15-min interval but to this in excel is far too much work? So i need a program that can import my min-interval and than show only 15-min interval ad export that table to excel or spss. Anyone any idea on this? Or maybe knows where i can get the data I want, or can provide me with tha data. Thanks a lot.