sn-da-excel-workflow SKILL.md skillA
sn-da-excel-workflow from opensensenova/sensenova-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add opensensenova/sensenova-skills/sn-da-excel-workflow@git:20260507.197eabbPins git:20260507.197eabb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- opensensenova/sensenova-skills
- Path
skills/sn-da-excel-workflow/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260507.197eabb, committed May 7, 2026
- First version recorded
- Apr 26, 2026
- Size
- 13,272 bytes
- Repository stars
- 6,031
- License
- MIT
Excel 数据分析多步编排器。覆盖：(1) 读取多 Sheet Excel 文件并统计行数，(2) 大文件检测（≥10k 行自动 Parquet 优化），(3) 数据清洗（缺失值、文本标准化、无效字符），(4) 条件筛选与分类提取，(5) 跨 Sheet 统计聚合，(6) 导出 Excel/CSV 并提供下载链接。覆盖从数据读取到报告生成全流程，按步骤编排 capability 子 skill。**遇到以下任一情况就主动使用本 skill，不要自行写几行 pandas 就回答**：①用户出现触发词：Excel 分析 / 表格分析 / 数据分析 / 数据清洗 / 数据统计 / 数据筛选 / 数据可视化 / 数据导出 / 汇总统计 / 透视表 / 分组统计 / 交叉分析 / 趋势分析 / 对比分析 / 异常值检测 / 去重 / 缺失值处理 / Excel 报告 / 生成报表 / analyze Excel / data analysis / data cleaning / pivot table；②用户上传或指定了 .xlsx / .xls / .csv…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Excel Data Analysis Workflow
End-to-end workflow for structured Excel analysis. Each step maps to a
capability sub-skill that can be loaded for detailed patterns.
## Workflow
### Step 1 — Count rows across all sheets (lightweight, no full load)
Count rows per sheet **without loading data into memory**. Use openpyxl
`read_only` mode — this works for any file size.
```python
import openpyxl, gc
wb = openpyxl.load_workbook(file_path, read_only=True, data_only=True)
total_rows = 0
sheet_info = {}
for name in wb.sheetnames:
ws = wb[name]
row_count = sum(1 for _ in ws.iter_rows(min_row=2, values_only=True))
total_rows += row_count
sheet_info[name] = row_count
print(f"Sheet '{name}': {row_count} rows")
wb.close()
print(f"总行数={total_rows}")
```
⚠️ **Do NOT use `pd.read_excel()` to count rows** — it loads all data into
memory, which will OOM on large files.
→ capability: `excel-reading/multi-sheet-reading`
### Step 2 — Large file gate (CRITICAL — choose strategy by row count)
| total_rows | Strategy | What to do |
|-----------|----------|------------|
| < 10k | Direct read | `df = pd.read_excel(file_path, sheet_name=target_sheet)` |
…Read the whole file at its exact version.
How to install
mdr add opensensenova/sensenova-skills/sn-da-excel-workflow@sha256:47348dffc7c96c0fThe line at the top of this page pins the label git:20260507.197eabb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_44uautsz2mliqyve)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 26, 2026 and May 7, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260507.197eabb latest | 2026-05-07 | 197eabb | 13,272 B | A | view · diff |
| git:20260426.f0ab496 | 2026-04-26 | f0ab496 | 12,509 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13272 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
opensensenova/sensenova-skills · 6,031 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_44uautsz2mliqyve GET https://markdownregistry.com/api/v1/resolve?ref=opensensenova/sensenova-skills/sn-da-excel-workflow GET https://markdownregistry.com/api/v1/blob/47348dffc7c96c0f01d0d4113f3ab8d65bef58a2334555e98d5ea0139d1a6f9f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.