Excel Sales Analysis Dashboard

I need an Excel workbook that turns raw sales figures into clear, visually engaging insights. The file should accept regular data dumps (CSV or pasted rows), then automatically update a set of well-formatted charts and graphs that highlight totals, trends, and comparisons across products, regions, and time periods.

Key points for the build:
• The emphasis is on charts and graphs; pivot tables are optional only if they help the visuals refresh smoothly.
• All formulas, named ranges, and any VBA you use must be transparent and easy for me to edit later.
• Please include a short, on-sheet note or separate tab explaining how to add new data and refresh the visuals.

I will hand over sample sales data once we start; you return a single .xlsx file ready for immediate use.