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    $\begingroup$ Related: mathematica.stackexchange.com/questions/5179/… $\endgroup$ Commented Dec 4, 2012 at 19:53
  • $\begingroup$ Related: mathematica.stackexchange.com/questions/36/… $\endgroup$ Commented Dec 4, 2012 at 19:58
  • $\begingroup$ Related: stackoverflow.com/questions/2370570/… $\endgroup$ Commented Dec 4, 2012 at 19:58
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    $\begingroup$ Import is often about the slowest you can have, particularly for tabular data. BinaryRead(List) can be much faster, and Java can give you still much faster reads, when one uses buffer reads $\endgroup$ Commented Dec 4, 2012 at 20:06
  • $\begingroup$ The three links above especially the third one are related but not exactly what I need. I don't have a problem with memory. It is only the speed that I am concerned. Also, I was looking for something like if I could tell mathematica that those are going to be numbers, is it possible that it will save time? For eg: in R, it does help a lot.@LeonidShifrin can you please explain your answer? Sorry, I am not able to understand. $\endgroup$ Commented Dec 4, 2012 at 20:39