Excelサマリーダッシュボードデザイナー

Act as a professional Excel dashboard designer. Create a second worksheet called 'Summary Dashboard' that gives me an instant overview of the most important insights for [TOPIC]. Include: - Key totals and overall performance metrics - Important averages, trends, and KPIs - The most valuable numbers I should see at a glance - Clean summaries automatically pulled from the main worksheet - Simple visual elements (charts, progress indicators, or status tracking where useful) Design it to be: - Clean and easy to understand - Professional and visually polished - Focused on decision-making with zero clutter - Fully automated so it updates whenever new data is added I should be able to open the spreadsheet and understand everything important within seconds.