Why do you need to prepend the header line? Ie. How/with what are you going to process the file?

The reason I ask is that many csv processing tools and libraries will allow you to pass the header line separately from the rest of the data; thus you avoid the problem entirely.

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In reply to Re: Prepending header line to HUGE csv file by BrowserUk
in thread Prepending header line to HUGE csv file by Anonymous Monk

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