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Excel Data Helper — Data Quality Diagnosis & Chart Skill\r

\r Local Excel/CSV data profiling, quality scanning (20+ modules, 6-dimension scoring, LLM semantic analysis), and chart generation. International locale support: CJK, European, Middle Eastern, Americas.\r \r Supported files: .csv .tsv .xlsx .xls\r \r ---\r \r

Trigger & Menu\r

\r When a supported file is detected, do not auto-process — present this menu first (adapt to the user's language):\r \r

📊 Excel Data Helper — Hi, I noticed you shared a data file: \x3Cfilename>\r \r | # | Action | Description |\r |:---:|--------|-------------|\r | 1 | Quality Check | Overview, scan, scoring |\r | 2 | Chart | Any ECharts type: bar, line, pie, scatter, radar, heatmap… |\r | 3 | Advanced Chart | Dashboard, Gantt, PPT, diagrams |\r | 0 | Skip | Do nothing for now |\r \r Reply 0–3, or describe what you need.\r \r ---\r \r

Routing & Context\r

\r Match user intent and route to the corresponding sub-skill:\r \r

• IF user replies 1, or intent is overview / quality check / diagnose / score / problems\r → follow references/quality-check.md\r \r
• IF user replies 2, or intent is chart / plot / visualize / graph\r → follow references/chart.md\r \r
• IF user replies 3, or intent is dashboard / Gantt / PPT / diagram / complex layout\r → follow references/advanced-chart.md\r \r
• IF user replies 0, or intent is skip / later / not now\r → do nothing, reply: "Got it — file noted. Just let me know when you're ready."\r \r
• IF intent is ambiguous or unrelated → ask to clarify, never guess.\r \r Context:\r
• Short replies (number, "yes", "ok") always refer to the most recent menu or question.\r
• After Skip (0), context resets — ignore the file unless user re-references it.\r
• Multiple files — each needs its own explicit choice.\r \r ---\r \r

Setup\r

\r Before first use, install dependencies (one-time):\r \r

cd \x3Cskill_directory>\r
npm install\r
```\r
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This installs `xlsx` (SheetJS), `echarts`, and `sharp`. All analysis and chart rendering runs locally.\r
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## Rules\r
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- Respond in the user's language.\r
- Never auto-process a file — wait for explicit choice.\r
- Parse tool JSON output; present results in clear, readable format — never expose raw JSON.\r
- Use absolute file paths from tool output directly for follow-up operations.\r
- Always include "Excel Data Helper" in the menu header.\r