Please don't copy C++ adding values in files 10041249 Mr V Rogan R Ltd Nell 5287   491.691 10021250 Mrs A Cun C Ltd Dr Scott 2941   273.513 10001252 Mrs C Ni N Ltd Brad 6723 Eddie:Brad: 672.3   above is figures in txt file. how can I use C++ to get the sum of 7th column? Thank you.

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