Writing an array to a text file

[Learned]

I have a giant 2D array of numbers. I can write them to a file in rows and columns just the way I want by iterating through the contents of rows but looping through the array is time consuming. So, I was wondering if there is an efficient way to this.

[BioPhysEngr]

A loop is not inefficient. See my reply to this thread for an efficient way of minimizing disk I/O.