A Complete Guide to Convert EML to MSG in Bulk

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Updated on
September 22, 2025

6 minutes Read

User Query: ”I have EML files as backup from my different email accounts. Now, I want to convert my EML files to MSG so that I can open them in Outlook easily. How can I do it without losing any emails or their attachments?

Summary: Many IT professionals and businesses use EML files to save or back up their emails. However, sometimes users need access to these EML emails in MSG format to open them in Outlook. Otherwise, use them for archiving and sharing purposes. In this blog, we’ll explain a simple manual method,  but it’s challenging to convert EML to MSG in bulk. Therefore, the blog shows a professional MacSonik EML Converter Tool. Both these methods are best suited for users, according to their requirements.

EML vs MSG Format

EML is a file format for storing individual email messages in several email clients. It can contain the contents of the email, metadata about the message, and sometimes attachments. MSG is Microsoft Outlook’s proprietary format. It is widely used for storing, sharing, and importing email messages to use in Outlook. A conversion from EML to MSG allows for complete compatibility with Outlook. You can even convert your EML files to MSG without losing any attachments.

Simple Steps to Convert EML to MSG in Bulk

  • Initially, install the EML Converter Tool on your computer system and launch it properly.
  • Next, click Select file, browse and open your desired EML files, then click Next for processing.
  • Further, you can preview your emails and select the required files to convert, then click Next.
  • Now, you will see several output formats, so select MSG in the File Format drop-down.
  • Now, select a folder directory to save the new MSG files, and additionally, you can use any filters if required.
  • Finally, click the Convert button and wait for it to finish.

Why Convert EML File to MSG in Bulk?

  • MSG files work perfectly in Microsoft Outlook.
  • Attachments will not be lost in the conversion process.
  • It makes emails easy to share with colleagues or clients.
  • Additionally, archiving emails becomes systematic and manageable.

Preparations Before Starting the Conversion

  • Make sure to back up all your EML files before starting the migration.
  • Your disk should have sufficient space for the MSG files once they are converted.
  • Organize all of your EML files into folders for your selection process.
  • Close any email clients to avoid conflicts during conversion.

Free Method to Save EML as MSG

A basic manual method involves opening EML files in Outlook and saving them as MSG individually.

Steps for EML to MSG Conversion manually are:

  1. To start, launch Microsoft Outlook on your computer.
  2. Then, browse your EML files in File Explorer and drag them to Outlook’s folder of your choice.
  3. Now, double-click the email to open it in Outlook.
  4. After that, click Select File > Save As and in the Save as type dropdown, select Outlook Message Format (*.msg).
  5. Finally, select the required location on your computer and click Save.

If you want to convert multiple files, repeat the process for every EML file you would like to convert.

Limitations of the Manual Methods

  • It can take a lot of time with hundreds or thousands of emails.
  • Attachments can sometimes get lost when users export EML to MSG using the manual method.
  • Humans can make mistakes and not save the emails correctly.
  • There is no option to filter and convert multiple emails at a time.

Verified Way to Convert EML to MSG in Bulk

The professional EML to MSG Converter Tool solves all these limitations. It allows you to convert thousands of EML files to MSG at once. Also, the tool preserves email attachments, metadata, and email formatting. Furthermore, users have the choice to use filters like date, duplicate removal, and selective conversion. Therefore, users can quickly export EML emails to Outlook without errors. Moreover, users can easily convert EML to MBOX or other file formats or email clients using this tool.

One-Time Service Option:

Prefer not to install software? You can contact the support team to perform a one-time bulk conversion of EML files to MSG safely and efficiently.

Why Choose the EML Converter Tool?

  • The tool includes multiple features such as Preview, Remove Duplicate, Date Filter, and others.
  • It offers a free demo version before buying the complete paid version.
  • The tool is suitable for fast conversion, reliable, and has no data loss.
  • It’s designed to be used on all versions of Windows and Mac.

Steps to use the converter tool:

  1. Begin by installing and launching the converter tool.
  2. Now, to open your EML files, click Select Files, open the desired EML, and click Next.
  3. Then, open the tree hierarchies to select your emails, preview them, and click Next.
  4. Further, choose MSG from the available list of File Formats, apply advanced filters, and set the Path to save.
  5. Finally, click Convert to start the transfer.

Real-Life Scenario:

Sara, a business manager, had her emails saved in EML file format, but needed to access them in Outlook. Then she decided to convert the EML files to their resultant MSG format. She tried to use the manual method but was not sure about her data safety. Therefore, she chose to use the EML Converter Tool that helped her migrate 1000’s of emails without any hassle

Conclusion

In this blog, we have explained the best and most reliable methods to convert EML to MSG. While the manual method works best for a small number of emails, it has some severe limitations. Henceforth, for professionals handling large volumes of emails, the EML Converter Tool is the best choice. It ensures a fast, safe, and hassle-free conversion with zero data loss. Also, the tool offers advanced options to condition your export, and only get what you desire.

Frequently Asked Questions

Q1. Is it possible to convert EML files to MSG format without using Outlook?

Ans. Yes, but you’ll need a professional EML Converter Tool. Manual methods rely on Microsoft Outlook because MSG is Outlook’s native format. A converter tool can process EML files directly and create MSG files without requiring Outlook, which saves time and avoids compatibility issues.

Q2. How to Convert EML to MSG on Mac?

Ans. Mac doesn’t support saving emails in MSG format directly, as MSG is specific to Microsoft Outlook on Windows. To do this on a Mac, you can use a specialized EML converter tool that supports macOS. Alternatively, transfer your EML files to a Windows system with Outlook installed and use the manual method or a converter there.

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