This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
How to read a file from a certain point. if the file is 1mb I would start to read it from, say, 400 kb. is a method that returns microsecond but there is no method which would allow the file to read from a microsecond.