Excel / XLSX
Edit spreadsheets while preserving formulas, formats and workbook structure.

Overview
A workflow guide for creating, inspecting and updating spreadsheet files. It distinguishes pandas-style data analysis from openpyxl workbook preservation, covers date and identifier pitfalls, and requires formula checks, recalculation and visual review when relevant.
Agent skill · ivangdavila
Install for free from the official publisher
Original source & installation instructions
Source-researched preview. Documentation is not an executed installation; provider access, dependencies and release suitability require review. Purchasing is not enabled.