Excel Workbook Cleanup for Football Stats

I need an experienced Excel specialist to clean up and organize a complicated workbook used for tracking a comprehensive range of football stats. The current workbook is cluttered and disorganized, making it difficult to extract meaningful insights. I MAINLY WANT TO HIDE DAT SHOWN IN THE SCREEN SHOT based on complete / incomplete column data header

Key tasks include:
- Organizing data for clarity and accessibility
- Removing duplicates and correcting errors
- Creating user-friendly navigation (e.g., tabs, links)
- Ensuring data integrity and accuracy

Ideal skills and experience:
- Advanced Excel proficiency (formulas, pivot tables, data validation)
- Experience with large datasets
- Attention to detail
- Ability to work independently and meet deadlines

Please provide examples of similar work and estimated time to completion.