How to Convert EML File to CSV without Losing Data?

Sarabjeet Kaur | eml file conversion software technology | 5 minutes read | Modified on: 12-06-2025
how to convert eml file to csv

If you’re trying to figure out how to convert EML file to CSV without losing data, you’ve landed in the right place. This guide will walk you through a trustworthy and efficient technique for making that conversion.

Comma-Separated Values (CSV) files are commonly used to store structured data in a simple text format. They’re ideal for organizing and sharing information between various programs, especially spreadsheets and databases. Because of their compatibility and simplicity, many users choose to convert EML files which typically contain individual email messages into CSV format for better data handling and analysis.

Whether you’re managing contact information, client details, or other email content, storing it in a CSV file makes it easier to sort, filter, and analyze using tools like Excel or database platforms. This is why converting EML to CSV is often necessary for professionals working with large sets of email data.

In this blog, we’ll outline a step-by-step method for migrating your EML files into CSV format. But before diving into the process, let’s explore why this conversion can be beneficial.

Why Converting EML to CSV Is Useful?

Moving EML files to CSV offers several practical advantages, especially for those who want to organize, analyze, or export email data. Here are some of the key benefits:

  • EML files contain individual email messages that are not simple to analyze or view in batch. By converting them to CSV format, one can extract essential information such as sender, recipient, subject, and date into a structured format that’s much easier to manage.
  • CSV files are widely supported by spreadsheet applications (like MS Excel or Google Sheets), databases (such as MySQL or PostgreSQL), and data analysis software. This allows users to perform sorting, filtering, and analysis more efficiently than they could with raw EML files.
  • Exporting EML emails to CSV provides a cleaner way to archive important data. Instead of storing a mix of unstructured email files, a single CSV file can hold thousands of records in a space-efficient and searchable format.
  • CSV files are lightweight and easy to share across teams or with stakeholders. They don’t require specialized software to open any basic text editor or spreadsheet tool that can do the job making the data more accessible to a wider audience.

How to Convert EML File to CSV with Manual Solution?

1: Open EML Files in an Email Client

You need to use an email client that supports EML files, such as:

  • Microsoft Outlook
  • Mozilla Thunderbird
  • Windows Mail

Most systems allow you to double-click an EML file to open it, or you can import the file directly into the email application.

2: Copy the Required Email Details

Open each EML file and manually copy important data such as:

  • Sender
  • Recipient
  • Subject
  • Date
  • Message body (optional)

Paste this data into a spreadsheet program such as Excel or Google Sheets.

3: Organize the Data into Columns

In the spreadsheet:

  • Create column headers (e.g., From, To, Subject, Date, Content)
  • Paste each piece of data under the correct column
  • Repeat for each EML file

4: Save the File as CSV

Once all data is organized:

  • In Excel: Click File > Save As, then choose CSV (Comma delimited) (*.csv) from the file type dropdown.
  • In Google Sheets: Click File > Download > Comma-separated values (.csv, current sheet)

Limitations of the Manual Method

  • Time-consuming for large batches of emails
  • Prone to human error during copy-paste
  • Email formatting and attachments are usually lost
  • No batch processing — one file at a time

Pro Solution to Convert EML to CSV in Bulk without Any Data Loss

A professional way to convert EML files to CSV in bulk without losing any data is by using the BitData Migration EML Converter Software. It’s a simple, user-friendly software that lets you upload multiple EML files into CSV file format at once while keeping all important details i.e. sender, receiver, date, subject, and message content intact. This EML to CSV Converter is designed to handle large data successfully without manual copy-paste or data errors, making it perfect for both personal as well as business use.

Steps to Convert EML File to CSV with Attachments

Here are the simple steps to convert EML file to CSV file with attachments using EML to CSV Conversion Tool-

  1. Download and install the EML to CSV Converter on your computer.
  2. Launch the tool and hit on the “Select Files” or “Select Folder” option to add your EML emails.
  3. Preview the emails if required, then opt the EML files you wish to move.
  4. From the export options, pick “CSV” as the output format.
  5. Choose a destination folder to save the CSV files and then hit the Convert button to start the process.

Features of the EML to CSV Tool – Beneficial Capabilities

  • Secure and Reliable – Delivers 100% safe and accurate results after the conversion task.
  • Bulk Conversion Support – Easily convert multiple EML files to CSV format in one go.
  • Preview Before Conversion – Lets you preview email content before converting data from EML emails to CSV file.
  • Supports All EML Files – Compatible with EML files from all major email clients i.e. Thunderbird, Outlook Express, Eudora, Entourage, Windows Live Mail, Apple Mail, etc.
  • Preserves Complete Data – Maintains original email elements such as sender, recipient, subject, date, and message body without any loss.
  • User-Friendly Interface – Designed with a simple and easy-to-navigate interface suitable for both professional as well as home users.
  • Maintains Folder Structure – Retains the original folder hierarchy intact throughout the migration procedure.
  • No File Size Limitation – Successfully handles large-sized EML emails without any limitations.
  • Wide-Compatibility – Smoothly runs on all macOS and Win OS platforms.
Final Words

This write-up covers numerous ways to convert an EML file to CSV on Mac and Win OS. While the manual process is available, it’s often difficult, time-consuming, and carries the risk of errors. A better alternative is the professional method that is fast, secure, and suggested by experts. It directly converts your bulk EML emails into CSV format in a single round. The tool also includes advanced filters, allowing users to migrate only specific emails based on their needs. In addition to CSV, the program supports over 20 other saving options for maximum flexibility. A free demo trial is available that permits users to try out the process and even transfer up to 25 .eml to .csv without any cost.