Power BI Dashboard and Report Enhancement

I'm seeking a Power BI expert to connect Excel spreadsheets and perform high-level editing and formatting on dashboards, reports, and datasets.

Key requirements include:
- Connecting to Excel data sources
- Editing and formatting of:
- Dashboards
- Reports
- Datasets
- Creating and refining visual elements:
- Charts and graphs
- Tables and matrices
- KPIs and cards

Ideal skills and experience:
- Proficiency in Power BI
- Extensive experience with Excel
- Strong data visualization skills
- Attention to detail and high-quality output

Please provide samples of previous Power BI work.