Excel calculator tool

I am looking to hire a freelancer to create an Excel calculator tool of a data analysis nature. I have an idea of what data I need for the calculator, but I am open to suggestions about other data that I may require. The desired outcome is for the calculator to display the results in an easy-to-understand format. I need the calculator to be able to analyze the data and find correlations and trends in real-time. I would like for the calculator to have a modern and visually appealing design. The freelancer should have experience in creating and designing calculators using Excel and have a good understanding of data analysis. I am looking for the help of an experienced professional who can help me design and create an accurate, reliable and efficient tool.