I create professional Google Sheets and Microsoft Excel dashboards that transform raw data into actionable insights. Build interactive KPI dashboards with charts, slicers, filters, and date selectors. Combine data from multiple sheets, workbooks, and external sources. Advanced expertise in QUERY, ARRAYFORMULA, XLOOKUP, INDEX/MATCH, Pivot Tables, Power Query, and Google Apps Script automation. Ideal for sales, marketing, finance, operations, and business performance reporting.