Excel Expert for Formulation + cleaning data

I am in need of an Excel expert to assist me with creating formulas and functions.

Specific Tasks:
- I require help in creating formulas and functions in Excel
- The expert should be proficient in data analysis and reporting
- The expert should also have experience in formatting and organizing data
*** a call for alignment before project start is needed
*** conditional average is needed
*** slicer is needed

Work Basis:
- The work is not required to be done on an ongoing basis

Timeframe:
- The work needs to be completed urgently