in reply to reading and working with grow.out files

If that's all you need to do, I don't think you can do much better than grep
grep MC9 in.txt > out.txt

See also:

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Re^2: reading and working with grow.out files
by rmgzsm9 (Novice) on Apr 24, 2012 at 01:20 UTC
    will that work with windows?
      Did you try it? If it's installed, it should work.

        Nope didn't work