Generate polished, read-only business reports from CSV/XLSX into static deliverables (xlsx+pdf+pptx) using ReportStudio Community. Use when a user says things like “用这个表生成月报/周报/经营分析/PPT+PDF汇报材料”, provides a file path, asks for trends (day/week/month), TopN breakdowns by a dimension/metric, or wants professional exports without hallucinated claims.