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A Guide to Convert MBOX to CSV Files using Secure Solutions

Justin Cener ~ Modified: March 3rd, 2025 ~ Export ~ 6 Minutes Reading
Do you know a way to convert MBOX to CSV file? If not, then this article will provide you with two solutions that can easily export your MBOX file in CSV format. Read this blog to the end to know how MBOX to CSV Converter works.

As you know MBOX file is a popular email file format. Many programs use this tool to open and save bulk emails. The file is mainly used to store emails but it also contains attachments, contacts, calendars, and other data within the file. All the data in MBOX stores is in simple text which makes it easier for you to open in Notepad, Thunderbird, Apple Mail, and other programs. Other than MBOX files, there are other file formats that save their data in plain text.

A CSV file is one of the files where you can store all the contact information in it. Just like the above file, CSV format can be used in many applications, like Excel, Google Contacts, Text Editor, etc. There are some users who want to save their MBOX contacts to CSV format for their work. Some people also contacted our team regarding this issue.

I have exported MBOX files from my mail application. Now I am looking for a way to convert the data into CSV format. After searching a lot, I didn’t find any suitable solution. I am not a technical professional and used a GitHub script to convert my MBOX files to CSV format but didn’t get the required output. I appreciate any given help.
Mark J

I have multiple emails stored in my Thunderbird account. Is there any direct way to export Thunderbird contact to CSV format? I am ready to invest in a trustworthy solution to save my time and effort. If you have any dedicated solution that allows me to export selected data files to CSV format with mapping fields, it will be a great help.
Dustin Carl

Therefore, here we are going to explain the methods that can easily convert MBOX to CSV. But before that let’s discuss the reasons for your contact conversion.

Why Need to Export MBOX File to CSV?

Both file formats are different from each other and store different data. MBOX saves emails whereas CSV stores contacts. Still, there are scenarios where you need to save your MBOX data to CSV. These instances are as follows.

  • You have an MBOX file that contains contact information that you want to add to your contact list. So, by saving them in CSV you can access your data in Excel and other programs.
  • By saving your Mailbox in CSV you can easily extract email information like sender, recipient, date, etc.
  • It can also be used in forensic investigation where you extract and examine your emails for legal purposes.

Hence, these are the common reasons to convert the MBOX file into contact format. Now, we are going to provide the solutions that help you to download your mailboxes in CSV format.

Manually Convert MBOX File to CSV with Thunderbird

Thunderbird supports both CSV and MBOX files. So, you can import your file into your program, and then save the contact file using the Export option. Make sure you have installed Import/Export Tools NG from the official site. Then, follow the steps below.

  1. Run Thunderbird on your computer.
  2. In the folder pane of the program, hover your cursor to the folder where you want to store your emails. Then, right-click on it.
  3. Select the Import/Export Tools NG option. Then, click on import MBOX file.
  4. Browse your file location and open it in your software.
  5. Now, to export the contacts, go to the same folder where you import the file.
  6. Right-click on the folder and select Import/Export add-in.
    click on import/export addon
  7. Click on the Export all Messages in Folder. Press the CSV option.
    export contacts in csv
  8. Select a location and save your file.

This way your file is now exported to CSV and now you can open it. So, this is a free method but it is a lengthy process and you need the Thunderbird program to save the MBOX file in CSV. So, it can be difficult for some users to work with. Thus, there is another solution that directly opens the file using MBOX to CSV Converter.

Bulk Download MBOX File to CSV with Professional Tool

In this, we use Corbett MBOX Converter that exports MBOX files into CSV format easily. With this program, you can directly save your files without affecting your original data.

Download Now Purchase Now

The program also provides a free demo version which you can download in your Windows and see all the features and functions of the program. Below are the working steps of this MBOX to CSV Converter.

Steps to Convert MBOX to CSV

  1. Install the software and click on the Open Tab. Select Email Data Files from the drop-down list.
  2. Choose the MBOX file and choose any one option from folders or files.
    select email data files > mbox files
  3. After that, upload your MBOX files in the software and preview them.
    preview your loaded data
  4. Click on the Export Tab, then choose CSV from the drop-down menu.
    click export and choose csv
  5. Select the Browse button and select a location where your files are going to be stored. Then, click the Save button.
    use data filters and click save

With these steps, your file is converted and now you can open it on any platform easily. Other than conversion, the software also offers you several features that provide you with many benefits. Below we have mentioned these features.

Key Features of MBOX to CSV Converter

  • The tool can batch export MBOX data files to CSV format with attachments securely.
  • You can preview your data before the conversion from the preview panel. Here you have several view modes like Hex View, Content, Raw Message, and Message Header.
  • There are multiple advanced functionalities that you can use to improve your work. These features are Open folders after export, including email header, deleting old folders, etc.
  • Users can save their MBOX files into various file formats and email clients like Outlook, Gmail, Apple Mail, etc.
  • It is a Windows-based program that works on any Windows OS version.

So There You Have It

In this article, we have learned how you can convert MBOX to CSV file. Here we have understood the reasons for exporting the files. Then, explain two methods that can easily convert your data. The first one is a manual option which is free to use. However, you may have a problem during the process. So, we also provided a professional MBOX to CSV converter that effortlessly saves your data.