A Comprehensive Guide to Convert MBOX to CSV File Format

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  • Updated on August 21st, 2025

Summary: User Doubt:I have a lot of legacy emails that are saved in MBOX format. I want to open them in Excel. Is there any simple and easy way to save MBOX to CSV?”

To open legacy emails saved in MBOX format in Excel, you need to convert MBOX to CSV. This process includes extracting email data such as sender, recipient, subject, and date into a tabular format. You can use an efficient MBOX Converter Tool or email clients like Thunderbird with add-on features to download MBOX as CSV. Once it is converted, the CSV file can be easily opened and managed for better viewing and working.

A table is shown below to show the difference between MBOX and CSV. Let’s now explore what can be more beneficial to us.

Comparing MBOX and CSV: Key Differences

FeaturesMBOX (MailBox File)CSV (Comma-Separated Values)
Format Emails are saved in one text fileThere are rows and columns like a spreadsheet
ReadabilityDifficult to read Easy to read
Useful ForEmail ClientsSpreadsheets, Databases
ConversionNeed Tools or Manual EffortsEasy to Convert

We are done with the differences. Now, let’s move forward to the methods, but before moving ahead, there are some points you need to be sure about.

Tips to Keep in Mind Before Using Manual Technique

Before using any manual method to convert MBOX to CSV, it’s smart to be prepared. Manual process can work, but it has some disadvantages. Here are some tips to help you get started the right way:

  • Ensure to keep a copy of your MBOX file.
  • Try the process on a small or unused file before you export MBOX to CSV.
  • Use a reliable email client like Thunderbird and avoid selecting multiple emails at a time.
  • Additionally, check for special characters, emojis, or non-English text as it is not allowed.
  • Moreover, make sure your emails are structured and well-organised.

Technique to Convert MBOX into CSV Manually

You can manually follow the conversion process by creating the Thunderbird account. Here’s a step-by-step procedure.

  1. Firstly, create a Thunderbird account and open it.
  2. Now, choose the Tools, go to the ImportExportTools NG, and after that, choose the Import MBOX Files option.
  3. After that, choose Import directly from one or more MBOX files and click OK.
  4. Now, open the MBOX File and restart the application.
  5. Right-click on the MBOX File you uploaded, and again choose ImportExportTools NG.
  6. Now, click on the Export all messages option, and then select the spreadsheet(CSV). 
  7. At last, choose the desired location to save the file.

These steps will help you convert MBOX to CSV.

Why is it Difficult to Follow the Manual Technique?

Conversion is a bit difficult due to the following reasons:

  • It might be very slow and tough if you’re working with a large number of MBOX files/folders.
  • Additionally, you may miss important details, such as attachments or other data in the emails.
  • Moreover, it takes effort and patience, especially if you have hundreds of emails to work with.

Smartest Way to Convert MBOX File to CSV: Using a Reliable Tool

The most efficient and accurate way to export an MBOX file into CSV is by using a reliable tool like the CloudXena MBOX Converter. Unlike manual techniques, which are time-consuming and often lead to data loss, this tool ensures that your data remains exact throughout the conversion process.

Apart from this, if you are thinking of saving your MBOX file on a cloud storage to Office 365. Then refer to our guide→ Import MBOX to Office 365.

Here’s a step-by-step process:

  1. First of all, download and install the MBOX Converter Tool to convert MBOX to CSV.
  2. Now, click on Select Files or Select Folders.
  3. After that, preview the mailbox format and select the MBOX file, and then tap Open.
  4. Pick CSV as the saving file format from the drop-down menu in the list.
  5. Further, apply the required filters and choose the desired location to save the file.
  6. Lastly, click on Convert. Once it is done, you can download the report.

These steps will surely help you convert MBOX file to CSV.

Key Features of the Reliable Tool

  • It maintains the original folder structure.
  • In addition, it supports batch conversion of MBOX files.
  • Before you export MBOX to CSV, the tool also allows you to preview emails.
  • It is also suitable for all email clients and systems.
  • Best of all, its interface is easy to use, which makes it perfect for non-technical users.

Conclusion

To conclude, managing and studying data becomes much easier once you convert the MBOX file to CSV format. Though challenging with manual work, it is far easier to use a reliable tool like the MBOX to CSV Converter. So, to convert MBOX to CSV, choose the smarter way and simplify your email management process.

Frequently Asked Questions

Q. How do I convert MBOX to CSV on Mac?

Ans. To convert MBOX into CSV on Mac, the easiest and simplest way is to use an automated tool like the MBOX File Converter. Here are the steps:
1. First, download and install the MBOX Exporter Tool.
2. Then, add your MBOX files by selecting a File or Folder.
3. Now, preview your emails and add the required filters if needed.
4. Choose CSV as the saving format.
5. Finally, select the location to save your file and then click Convert.

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