Convert, clean, and produce spreadsheet files from .xlsx, .xlsm, .csv, or .tsv sources.
npx skills add https://github.com/silvio-l/copilot-skills --skill xlsx-silvio-l
Please help me install this Agent Skill. Skill: xlsx Source: https://github.com/silvio-l/copilot-skills/tree/main/xlsx Command: npx skills add https://github.com/silvio-l/copilot-skills --skill xlsx-silvio-l
Many tasks require producing or fixing spreadsheet files as the primary deliverable, but users often face messy tabular inputs, broken formulas, inconsistent formatting, or lost templates. This Skill centralizes workflows for opening, reading, editing, cleaning, converting, and producing .xlsx/.xlsm/.csv/.tsv deliverables while enforcing formula-based calculations and professional formatting. It prevents incorrect triggers when the primary deliverable is a document, script, or database pipeline.
Open the file at Downloads/sales.csv, clean and normalize the headers and rows, add Excel formulas for totals, then save the result as cleaned-sales.xlsx.
High-intent search queries and answers about installing and using this skill.
To convert CSV to XLSX with formulas, use a spreadsheet workflow that inserts Excel formulas for calculations and runs LibreOffice recalculation to verify zero formula errors. This ensures professional, error-free deliverables without hardcoding values.
Cleaning malformed rows and restoring headers involves detecting junk data, normalizing inconsistent entries, and reshaping tables into proper spreadsheets. This data-cleaning process fixes broken structures while preserving the original workbook layout.
Yes, you can update an Excel template without losing formatting by using template preservation utilities. These tools match existing styles when updating files and validate Office file integrity through pack and unpack scripts.
Converting XLSM to XLSX preserves workbook structure and supports formula recalculation via LibreOffice. However, XLSX does not support macros, so macro code will be dropped during the conversion while formula integrity remains intact.
Spreadsheet formula errors after editing often occur when formulas are hardcoded or not recalculated. Running a LibreOffice recalculation script verifies zero formula errors before delivery, ensuring calculations are correct and dynamic.
You need to unpack and validate Office files when ensuring robust, production-ready outputs after unpacking or packing operations. Schema validators check Office file integrity to prevent corruption when modifying XLSX or XLSM structures.
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