What problem does it solve?
This Skill prevents spreadsheet corruption and unreliable results when creating, inspecting, or editing Excel workbooks by preserving formulas, data types, formatting, workbook structure, and calculated values.
Core Features & Use Cases
- Workbook Creation and Editing: Build or modify XLSX and XLSM workbooks while retaining sheets, styles, formulas, merged cells, validations, filters, and print settings.
- Formula and Data Reliability: Handle dates, serial numbers, text identifiers, leading zeros, formula references, recalculation, and common spreadsheet errors.
- Analysis and Conversion: Use appropriate workflows for Excel files, CSV, and TSV data, including analysis, reshaping, structured extraction, and large-file processing.
- Use Case: Update a financial model from a preserved template, keep assumptions and formulas live, retain its visual conventions, and verify that the delivered workbook contains no formula or formatting regressions.
Quick Start
Use the excel-xlsx skill to inspect the attached workbook, preserve its existing structure, update the requested inputs and formulas, recalculate the results, and verify the final file for data or formula errors.