@Simon I would like to avoid a prolonged discussion under your post, so I will answer you here.
My point is not that you should consider likely the possibility that the FDR readers will save the data in csv format, but rather that, given our lack of information, I would not dismiss the possibility so easily.
Said otherwise, you write: "Of course, the custom software which does extract the data might contain such a feature but then again, why would it?"
I would write: "Of course, the custom software which does extract the data might contain such a feature."