Power BI Dashboard Development

I'm seeking an experienced Power BI developer to create a comprehensive dashboard using data from Excel spreadsheets. The insights will help me make informed business decisions.

Key Requirements:
- Connect and integrate multiple Excel data sources
- Design interactive and user-friendly dashboard
- Utilize bar charts, pie charts, and line graphs for data visualization
- Provide documentation and support post-delivery

Ideal Skills and Experience:
- Proficiency in Power BI and Excel
- Strong data visualization and analytical skills
- Experience in developing dashboards for business insights
- Good communication skills for requirement gathering and feedback

Please share relevant work samples and estimated delivery time.