Excel expert needed

I am looking for someone who is an expert in creating formulas in excel spreadsheets and designing attractive excel spreadsheets to help with the following tasks:

- Create basic formulas in my existing Excel spreadsheet
- Create attractive graphs to show the outcome of the data entered into those formulas
- Design an attractive spreadsheet in line with my branding
- Proof read and spell check the content within my spreadsheet

I will need a freelancer with great experience in creating excel spreadsheets and proven examples of previous work.

Work to start immediately.

Thanks