I am using the TChart contourseries, now want to do myself well data input contourseries, it only supports the Excel, Text, XML file format of all three, my own data as TXT format, but I don't know if my data in TXT arrangements out of the question, after import only in the middle of the TChart showed a lot of 0, run after the graphic display is randomly generated data, ask god help me! I am a novice,,