Advanced Excel worksheet

I need an advanced Excel worksheet to handle highly complex data. I have a specific template that needs to be followed, and the worksheet should include advanced formulas and calculations. The worksheet should be able to manage data from a variety of sources and be able to analyze and process data in any format. As such, Macros and automation capabilities are necessary for this project. The data entered into the worksheet will be complex and sophisticated, so someone with a good working knowledge of Excel and a lot of experience is essential.