A lightweight AI automatic annotation Excel plug-in

Written by
Jasper Cole
Updated on:July-09th-2025
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Use Excel to implement AI data labeling and improve the efficiency of NLP tasks.

Core content:
1. Efficiency and cost challenges of manual data labeling
2. Application cases of lightweight AI plug-ins in Excel
3. Automatically label sentiment classification and NER examples through Excel AI formulas

Yang Fangxian
Founder of 53AI/Most Valuable Expert of Tencent Cloud (TVP)

 

In the field of machine learning, data labeling is a crucial step, especially in natural language processing (NLP) tasks, where manually labeled data directly determines the training effect of the model. However, traditional manual labeling methods are not only inefficient, but also have problems such as high cost and strong subjectivity.

So, is there a way to   turn a common tool like  Excel into an AI data labeling assistant to improve labeling efficiency?

Challenges of Traditional Data Annotation

Traditional data annotation processes usually rely on manual processing of data one by one, which is cumbersome and inefficient, especially when dealing with large amounts of text. The following are common manual annotation tasks and their challenges:

  • •  Sentiment classification : It requires manual reading of a large amount of user feedback and classifying the sentiments, such as positive, negative or neutral.
  • •  Text summarization : extracting key information from a long article or report.
  • •  Named Entity Recognition (NER) : Extract information such as person names, company names, places, etc. from text.
  • •  Data cleaning : standardize irregular text data and remove noise.

The common problems of these tasks are:

  • •  Slow speed : Manual labeling needs to be processed one by one, which takes a long time.
  • •  Highly subjective : The results labeled by different people may differ, making it difficult to ensure consistency.
  • •  High repetitiveness : Too many similar tasks can easily lead to fatigue and errors.

Let Excel participate in AI data annotation

In recent years, with  the development of large language model (LLM) technology, some plug-ins or extended functions have enabled Excel to have AI data annotation capabilities. For example, with AI plug-ins, users can directly enter formulas  in Excel  to automatically complete tasks such as text classification and entity recognition.

Case 1: Automatic labeling of sentiment classification

Scenario : Analyze user feedback and classify it according to sentiment (positive, negative, neutral).

Original data (Excel table) :

User Feedback ID
Feedback content
1
This software is really useful, highly recommended!
2
It opens too slowly, which is a poor experience.
3
The price is a bit high, hope there is a discount.
4
The customer service is very patient and the service is good.

Excel AI formula example (Cell C2) :

=PROMPT(B2, "Please judge the sentiment of this user feedback and answer with 'positive', 'negative' or 'neutral'.")

Automatically generated annotation results :

✨Complete  batch annotation with one click, significantly improving efficiency!

Case 2: Named Entity Recognition (NER)

Scenario : Extract key information such as company name, person name, location, etc. from text.

Raw data :

ID
Article Content
1
Musk's company Tesla recently released a new model.
2
OpenAI is the world's leading AI research organization headquartered in San Francisco.
3
Bill Gates and Microsoft were once leaders in the computer industry.

Excel AI formula example (cell B2) :

=PROMPT(B2, "Please extract the company names from the text and list them separated by commas.")

Automatically generated annotation results :

ID
Article Content
Company Name
1
Musk's company Tesla recently released a new model.
Tesla
2
OpenAI is the world's leading AI research organization headquartered in San Francisco.
OpenAI
3
Bill Gates and Microsoft were once leaders in the computer industry.
Microsoft

Case 3: Email Classification

Problem : Need to analyze customer emails and extract key topics.

Raw data :

Message ID
Email Content
1
Hello, I would like to inquire about your product prices and ordering procedures.
2
This product has great performance, but sometimes it runs a little slowly. How can I optimize it?
3
The device I purchased previously has a problem. Can I get warranty service?

Excel AI formula example (cell B2) :

=PROMPT(A2, "Please summarize the subject of this email and categorize it as 'price consultation', 'performance issue' or 'after-sales service'.")

Automatically generated classification results :

Message ID
Email Content
AI Classification
1
Hello, I would like to inquire about your product prices and ordering procedures.
Price consultation
2
This product has great performance, but sometimes it runs a little slowly. How can I optimize it?
Performance issues
3
The device I purchased previously has a problem. Can I get warranty service?
After-sales service

Automatically classify emails to greatly improve customer support efficiency!

Advantages of AI Data Annotation

  • •  Batch automation : quickly label thousands of data and significantly improve work efficiency.
  • •  Easy to use : No need to write code, just use Excel formulas to complete complex tasks.
  • •  Data security : Run AI models locally to ensure that sensitive data is not leaked.
  • •  Low cost : Compared with manual labeling, it can significantly reduce data processing costs.

in conclusion

Excel combined with AI makes data annotation more efficient and accurate, greatly reducing the cost and time of manual annotation. Whether it is sentiment analysis, named entity recognition, or email classification, tasks can be completed automatically with the help of AI .