I am keen to hear any recommendations or customer reviews from the ET community based on their use of DDE data export a) historical or b) intra-day data for the use in MS-Excel or MS Visual Studio. I would like to know, whether eSignal or QChart will satisfy my needs.. My objective is First.. to be able to designate the type of intra-day data points (e.g. 15-minute to 90-minute) and the number of data points, going back in time (e.g previous THREE days to TEN days). Second, to then save this series down in a spread sheet, for any given stock, index, or option, or currency pair. And last, to then in the future (i.e. tomorrow) re-open the spreadsheet / application and have the sheet auto update. Your response would be very helpful. Please advise if there are other providers, other than QChart or eSignal's DDE which may be helpful to me? Regards, CorrelTrader