Excel by Anthropic

Plugin Warning Active

Spreadsheet creation, editing, and analysis with formulas and data visualization

Purpose

To enable AI agents to perform comprehensive spreadsheet operations, from data analysis and editing to creation and formula management, ensuring dynamic and error-free Excel files.

Features

Create, edit, and analyze spreadsheet files
Support for formulas, formatting, and data visualization
Utilizes pandas for data manipulation and openpyxl for formatting
Includes script for formula recalculation and error verification
Handles CSV and TSV files alongside Excel formats

Use Cases

Editing existing spreadsheets by adding columns, computing formulas, or cleaning data
Creating new spreadsheets from scratch or from other data sources
Converting between tabular file formats
Analyzing tabular data for insights and statistics

Non-Goals

Creating Google Sheets API integrations
Generating standalone Python scripts or database pipelines
Producing HTML reports
Primary deliverable being a Word document

License

critical:License usabilityThe LICENSE.txt file states 'Proprietary. See LICENSE.txt' but the provided text indicates strict restrictions against copying, distribution, and derivative works, making it unusable for redistribution or integration into other products.

Execution

warning:ValidationWhile pandas and openpyxl handle data types, the explicit validation and sanitization of file paths and user-provided arguments are not detailed, potentially allowing for vulnerabilities like path traversal if not handled carefully by the calling agent.

Portability

info:Runtime stabilityThe skill assumes LibreOffice is installed for formula recalculation, which might not be available in all environments, though it is noted as a requirement.

Installation

First, add the marketplace

/plugin marketplace add lawvable/awesome-legal-skills

/plugin install xlsx-processing-anthropic@lawvable

Contains 1 extensions

Skill (1)

Xlsx Processing Anthropic Skill

Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like "the xlsx in my downloads") — and wants something done to it or produced from it. Also trigger for cleaning or restructuring messy tabular data files (malformed rows, misplaced headers, junk data) into proper spreadsheets. The deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved.