Subroto: How u do that in Nest Trader
the format of the data is :
Start time, End time, open, High, Low , Close, Differential Vol
[ reposition columns in that data table for ur required data format and save it]
save it in csv format and in excel format the date (either YMD or DMY and time [HH:mm:ss]component properly and save it . ur data is ready for import thru - ami's import ascii option.
regds
subroto