fastest way to read a text file in to a numpy array

Heli hemla21 at
Tue Jun 28 09:45:50 EDT 2016


I need to read a file in to a 2d numpy array containing many number of lines. 
I was wondering what is the fastest way to do this?

Is even reading the file in to numpy array the best method or there are better approaches?

Thanks for your suggestions, 

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