How to Change Thunderbird Emails to Dataset for AIML Projects

  Kumar Raj
Written By Kumar Raj
Anuraag Singh
Approved By Anuraag Singh  
Modified On July 30th, 2025
Reading Time 7 Minutes Reading

AI has become the biggest source of rich data in today’s dynamic world. Among many, emails are commonly used for communication, utilising their natural language processing (NLP), spam detection, and sentiment analysis. Using Mozilla Thunderbird, a common email client used by professionals, as it stores data in a structured format, makes it a more reliable and trusted source for dataset AI projects. In this article, we’ll discover how to change Thunderbird emails to dataset, mostly in CSV format, which can be used for AIML models.

Why is it Necessary to Create Thunderbird Email Data for Training AI?

Thunderbird emails are important for developing AI models as they contain well-structured data, use proper labels, etc. These data include sender, timestamps, date, subject, and body, which can easily:

  • Detect spam
  • Intent of email
  • Quick auto reply and suggestions
  • Analyse the customer feedback

Therefore, need to transform Thunderbird emails for machine learning, which can be used among many developers, data researchers, etc.

Read: If You Want to Convert Outlook Emails to Dataset for AIML Models

Explore Thunderbird Data Structure

Thunderbird saves its emails in MBOX file format, which includes all elements like subjects, date, sender, etc, in one single file. However, the problem is that the dataset AIML models use only accepts CSV format. So, to make it accessible, we’ve to change Thunderbird emails to dataset in CSV format. We can convert it by using both a manual and an automated solution.

Let’s quickly discuss them:

Create Thunderbird Emails to Dataset Manually Using Excel

Steps to follow:

  1. Open your MBOX file using any text editor, such as Notepad
  2. Identify the main elements like subject, state, body, etc, and copy them using ctrl+C
  3. Make the heading for the particular column and manually paste the data into the Excel sheet.
  4. Now, save the sheet into CSV format by clicking on file, going to save as, and tapping on CSV.

Recommend: How to Convert MBOX to CSV File Format

Pros:

  • No need to install any other software for it.
  • Easily compatible with a small number of Thunderbird emails.
Cons:

  • Very time-consuming process as you’ve to copy and paste all of the data manually.
  • Formatting errors can easily be made while copying and pasting the data.

Transform Thunderbird Emails for Machine Learning Using an Automated Converter

To avoid these limitations and look for a quick alternative to the manual method, use SysTools Thunderbird Converter, which helps the user to change Thunderbird emails to dataset very quickly in CSV format without any data loss.

 
This standalone tool is very reliable, as it can easily bulk export Thunderbird email data for training AI with direct conversion into CSV, PST, EML, PDF and HTML. It preserves attachments and formatting intact, along with metadata of the email. Let’s know more features of this professional tool.

Benefits to Change Thunderbird Emails to Dataset to Train AI by an Automated Tool

  • This method helps to save time and your efforts as compared to manual.
  • It not only transforms into CSV format but also supports many formats such as PST, EML, PDF, etc.
  • No skill required, as it has a user-friendly interface which can be useful for non-tech users too.
  • Prevent the risk of accidental data loss or corruption among files.
  • It maintains the data structure by keeping original folders with their formatting and attachments intact.

Let’s explore how it works to understand it better.

Steps to Create Thunderbird Emails to Dataset for AI Model

  1. Download and set up the Thunderbird to CSV converter on your OS.
  2. install

  3. Press Add file to add an MBOX file into the software.
  4. add file

  5. If you don’t have Mozilla Thunderbird installed, click on MBOX file by selecting the select file/folder system option, then tap next button.
  6. mbox file

  7. Add a path or click the (…) button to browse your files from your system.
  8. browse

  9. Click OK button to open your file or folder.
  10. ok

  11. Tap Process button to start the Scanning process of MBOX files.
  12. process

  13. Press export button and select the CSV file format in export option.
  14. export

  15. If you want to apply some filters like date, mail status, then go to Advanced Settings.
  16. apply filters

  17. Save the settings, and Browse the location for storing the output CSV file.
  18. save

  19. Finally, click on Export button to start the changing process.
  20. export

  21. Tap OK button, and if you want to preview your report, then click on Open Location to check the transformed emails into dataset in CSV file format.
  22. ok

Important: If there are any issues with the items below, you can easily edit them into your file. These items are:

  • You can clean any text content like junk, notes, disclaimers, and signatures.
  • If you want to label or categorize the data, such as spam, social, or promotional.
  • Remove any PII like sender’s name, email ID, number, etc.

By using an example, you can easily understand how to transform Thunderbird emails to dataset to train your AIML model.

Example to Change Thunderbird Emails to Dataset

Case 1: If someone wants to analyze the customer service emails using Thunderbird, so by following these steps they can:

  1. You’ve converted emails into your dataset using Thunderbird to CSV converter.
  2. Also, extract the elements like subject, body, date, and email ID of the customer, and add one more label such as positive, negative, or normal.
  3. With the help of this dataset, you can easily train your AI machine learning.

Case 2: If someone wants to classify the email system, whether it is personal, spam, or work. Follow these steps:

  1. Created the dataset using the aforementioned tool above.
  2. Label some of the emails with work, spam, and personal.
  3. Finally, train your model in such a way that it can easily classify into many categories.

Now, your dataset is ready to use in your AI machine learning model without any complexity.

Conclusion

If you’re working on your artificial intelligence machine learning, then it needs to change Thunderbird emails to dataset, which should be well-structured with all formatting and attachments intact. It can be done by using both manual and automated methods, but we recommend that you use best automated Thunderbird to CSV converter, which can effectively transform your emails into an accessible and compatible dataset. So, make this tool a critical part of your conversion process with your AI model.

FAQs on Thunderbird Email Data for Training AI

Q.1 How can I use Thunderbird email data for NLP models?

A. You can change Thunderbird emails to dataset, as these emails include natural language content which can be used for NLP and AIML models.

Q.2 In which format do Thunderbird emails come into use for dataset?

A. CSV and JSON are ideally used for AI machine learning models.

Q.3 Is there any automated tool that can help in transferring into dataset?

A. Yes, Thunderbird to CSV converter, which is designed by SysTools, helps to create Thunderbird emails to dataset in CSV format, which can be easily accessible to your AI model.

  Kumar Raj

By Kumar Raj

Kumar Raj has more than 14 plus years of expertise in migration technology. He likes to create, edit, and optimize web material on topics conversion of email data, and migration of email data. For the majority of the past ten years, he has been a devoted fan of the technology scene.