I have good experience with Excel and have good processing speed. In the past years, I have created dashboards and crosstabs in excel, which involve big and complex formulas (to name a few - average, mode, median, vlookup, if, offset, indirect, array).
Given my experience with Excel and my attention to detail and quality, you can expect good quality work.
Feel free to contact me for any questions that you might have or to further discuss the details