---
name: "spreadsheets"
description: "Create, modify, analyze, and format spreadsheet files (xlsx, csv) with dynamic formulas, styling, and charts."
---

# Spreadsheet Engine

Provides programmatic manipulation of Excel workbooks using openpyxl and pandas.

## Core Rules
- Never hardcode computed totals; use Excel native formulas (=SUM, =AVERAGE, =XLOOKUP).
- Format financial figures with appropriate currency symbols and 2 decimal places.
- Freeze header rows and auto-fit column widths.