What problem does it solve? Working with spreadsheets programmatically often breaks formulas, loses formatting, or produces unstyled output. This Skill provides a structured workflow for creating, editing, analyzing, and visualizing spreadsheets while preserving formulas, references, and formatting. ## Core Features & Use Cases - Workbook Creation & Editing: Build new .xlsx workbooks with formulas, formatting, and structured layouts using openpyxl, or modify existing files without breaking references. - Data Analysis: Filter, aggregate, pivot, and compute metrics on tabular data with pandas, then write results back to .xlsx or .csv. - Visual Verification: Render sheets to PDF/PNG via LibreOffice and Poppler to review layout accuracy before delivery. - Use Case: Build an investment banking style DCF model with proper color conventions, formula-driven derived values, source citations in cell comments, and finance formatting such as red parenthesized negatives. ## Quick Start Use the spreadsheet skill to create a formatted xlsx workbook with formulas and clean styling for this data.
