Sales Data Dashboard Automation

I need a freelancer to create an automated visual dashboard for my sales data, which is updated quarterly.
Need all these done in Macros.
Requirements:
- Mechanism to integrate new data files and update the dashboard.
- Dashboard should be user-friendly and visually appealing.
- Currently, data is stored in spreadsheets.

Ideal Skills and Experience:
- Proficiency in data visualization tools (e.g., Tableau, Power BI).
- Strong spreadsheet management skills.
- Experience in automating data updates and dashboard integration.