Thanks sundialsvc4 for the feedback. In my "untested" opinion, would it be good approach to have a check in file reading sub if data size > 30mb (example), then use file-handling method, else if smaller size, read all into memory? I'm just assuming the process would be much faster using array if data is lesser compare to using direct file-handling just to read few lines of data. Correct me if I am wrong. and Yes, I am concerned my approach would fail if data increases several times larger.
I'm still consider new in using reference vars. So feel free to give me more suggestions of where I should look into. I will slowly re-code older subs into using reference as suggested.
Thanks again for you guys feedback.
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