<h3 id="heading-problem-description-amp-analysis">Problem description &amp; analysis:</h3>
There is a data table:
<img src="https://miro.medium.com/v2/resize:fit:684/0*_4HheqrSd54Kf3ra" alt />
Task: Find out the data that are not duplicate and the first duplicate data in the Name column:
<h3 id="heading-solution">Solution:</h3>
Use SPL XLL and enter the following formula:
<pre><code class="lang-plaintext">=spl("=E(?1).group@u(Name).(~(1))",A1:D7)
</code></pre>
The results are as shown:
<img src="https://miro.medium.com/v2/resize:fit:596/1*p54dK4MQVz6tJMxpgeEUqQ.png" alt />
<hr />
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✨Plugin Installation Method: <a target="_blank" href="https://c.scudata.com/article/1652061135502">SPL XLL Installation and Configuration</a>
✨References to other rich Excel operation cases: <a target="_blank" href="https://www.scudata.com/html/Desktop-and-Excel-Data-Processing-Cases.html">Desktop and Excel Data Processing Cases</a>
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### Problem description & analysis:

There is a data table:

![](https://miro.medium.com/v2/resize:fit:684/0*_4HheqrSd54Kf3ra align="left")

**Task**: Find out the data that are not duplicate and the first duplicate data in the Name column:

### Solution:

Use **SPL XLL** and enter the following formula:

```plaintext
=spl("=E(?1).group@u(Name).(~(1))",A1:D7)
```

The results are as shown:

![](https://miro.medium.com/v2/resize:fit:596/1*p54dK4MQVz6tJMxpgeEUqQ.png align="left")

---

Download **esProc Desktop** for FREE and streamline your workflows!! 🚀🔥⬇️

✨SPL download address: [esProc Desktop FREE Download](http://www.scudata.com/download-Desktop)

✨Plugin Installation Method: [SPL XLL Installation and Configuration](https://c.scudata.com/article/1652061135502)

✨References to other rich Excel operation cases: [Desktop and Excel Data Processing Cases](https://www.scudata.com/html/Desktop-and-Excel-Data-Processing-Cases.html)

✨YouTube FREE courses: [SPL Programming](https://www.youtube.com/playlist?list=PLQeR-IhHo7qNCw6o7PW8YfHvRx8pgzZso)

#103 — Deduplication of Row-Based Data — by Key Column — Keeping the Original Order

Problem description & analysis:

Solution: