What is best way read 10Gb file

Question

which language is better for that

Answer 1

Not a language related problem, but memory and strategy one...
Whatever the language used to read 10Gb file, you'll need to avoid read it at once and buffered it, because reading it at once would require at least 10Gb of memory free on user computer ( at least, because you probably need to do some operation with it, and with bad strategy you will quickly multiply memory requirements and reach a memory overflow error, which can result of brutally power off or freeze the computer :P )