data-analysis

Analyze Excel and CSV spreadsheets to generate insights, visualizations, and markdown reports.

1|Updated Aug 7, 2026
One-click install
npx skills add https://github.com/Deepak-ai-93/deepak-skill --skill data-analysis-deepak-ai-93
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: data-analysis
Source: https://github.com/Deepak-ai-93/deepak-skill/tree/main/skills/data-analysis
Command: npx skills add https://github.com/Deepak-ai-93/deepak-skill --skill data-analysis-deepak-ai-93

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve? Turning raw spreadsheet data into clear findings requires manual exploration, formula writing, and chart selection. This Skill analyzes Excel/CSV files, surfaces quantified insights, recommends the right visualizations, and produces a structured markdown report with an audit harness to verify quality. ## Core Features & Use Cases - Exploratory & Statistical Analysis: Compute dataset overviews, summary statistics, trends, and correlations from xlsx, csv, or xls files. - Visualization & Formula Guidance: Recommend the right chart type per data shape and generate Excel/Google Sheets formulas (SUMIFS, VLOOKUP, growth rates) with explanations. - Audit Harness: Run audit-data.mjs to check the report against an anti-fluff blocklist and produce data-audit.md, then have a fresh auditor subagent score the pack /50. - Use Case: A sales analyst shares a Q1 revenue CSV and asks for regional performance; the Skill returns a report with key metrics, trend findings, chart specs, and prioritized recommendations. ## Quick Start Analyze the attached sales spreadsheet and give me an overview, key insights, recommended charts, and actionable recommendations in a markdown report.

Frequently Asked Questions about data-analysis

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I analyze an Excel or CSV file with AI?

Share your xlsx, csv, or xls file and describe what you want to know, such as revenue by region or top products. The Skill returns a dataset overview, statistical summary, key findings, and recommendations in markdown.

What chart type should I use for my spreadsheet data?

Use line charts for trends over time, bar charts for comparisons, pie charts for part-of-whole, histograms for distributions, and scatter plots for correlations. The Skill recommends the right chart based on your data shape with axis and formatting specs.

Can this generate Excel formulas like SUMIFS or VLOOKUP?

Yes, request formulas in plain language such as year-over-year growth or criteria-based sums. The Skill outputs the Excel or Google Sheets formula with an explanation of each argument and where to place it.

What does the audit-data.mjs script check?

The audit script verifies SKILL.md frontmatter, confirms a report file exists, and scans markdown files for blocklisted fluff words like unlock, game-changer, and leverage. It writes results to data-audit.md with PASS, WARN, or FAIL status.

What are the limitations of AI spreadsheet analysis?

The Skill cannot directly execute code on your data, so large datasets may need sampling and complex statistical models need specialized tools. Real-time data requires live connections, and OCR-extracted data cannot be guaranteed fully accurate.