We have Ninja's based in Australia, India, Europe and the America's and so cover most of the day
As Marc L expressed, what is important is to clearly explain the problem, providing a sample file is the best way to get a good, quick answer.
Also refrain from using the words, Important, Urgent etc, even if it is Important for you, it isn't for the rest of us. If anything is that important I'd suggest hiring an appropriate consultant. Some of the Ninja's do provide Excel consulting services.