The Excel skill turns “I need a spreadsheet that does X” into a real .xlsx file with formulas, formatting, and charts. It’s the cheapest path to a financial model, a pricing calculator, or a customer-revenue dashboard without manually typing formulas.
What it produces: real .xlsx files (Office Open XML), readable in Excel / Google Sheets / Numbers. Supports formulas, named ranges, named tables, conditional formatting, charts, multiple sheets.
Best for: monthly close, runway forecasts, pricing calculators, lead-gen revenue models.
Skip if: you live in Notion / Airtable already and don’t ship spreadsheets externally.