Hello !
My name ist Schäfer, I am a doctor based in Germany and doing Excel work based on scientific research since my medicinal study in Germany. I do have a lot of experience in Excel spreadsheets and in case you are interested, I can send you an example of a previous Excel project I finished on Freelancer.com as well as my doctor's certificate from my university. I am a reliable Freelancer and I would appreciate hearing from you. I could start working on your project immediately.
With best regards!
F. Schäfer