How to Convert EML to MSG on Mac & Windows OS? Resolved

Rollins Duke
Published: May 22nd, 2025 • 8 Min Read

Overview: In today’s blog we will discuss the step-by-step process to convert EML to MSG file format with manual technique which is completely free of cost. We will begin with a quick definition of EML and MSG files, highlighting their main characteristics and differences. This will make it clear to you why users need to change EML to MSG format.

To convert EML to MSG file, you need to make sure that you are using some best solution to complete this task. EML and MSG both file formats are used in our day today’s life for email communications with multiple email clients. As EML files contain all the data of your email along with body massage, attachments, and the header details. Apart from this we usually save and archive Individual email communications by using EML files.
But, comparatively, MSG files are more compatible and accessible. In this article we will be discussing multiple ways to convert EML file to MSG file format. You must know the solution that is trustable and reliable enough to keep your data safe and secure. Let us move forward to know more about the conversion process and its solution.

What is the Difference Between EML and MSG Files

If you are also thing what is the difference between EML and MSG files, Both EML and MSG file formats are used to store the data effortlessly but they differ in structure and compatibility. EML files are created by emails clients such as Windows Live Mail, Thunderbird, Apple Mail etc. These email clients store their data in plain text format including headers, body, and attachment. On the other hand, MSG file is commonly supported by Microsoft Outlook and stores a single email in a binary format which includes complex data such as sender, recipient, formatting and attachments. While EML files are more universally accessible across multiple platforms.

Reasons to Change EML File to MSG?

Compatibility: MSG files are more compatible with Microsoft Outlook because MSG files are native email formats of Outlook. It also preserves formatting and includes attachments very well.
Accessibility: MSG files are easier to open and read for users who primarily use the Outlook application. This point is very important when it comes to convert EML file to MSG.
Easy Backup and Archive: MSG files work better in systems that are Outlook-optimized for archiving and backup applications.

Note: Users can use the benefit of MSG files from these advantages. You only need to convert EML to MSG files, especially if you use Microsoft Outlook for email management and communication.

How to Convert EML to MSG using MS Outlook?

When you use the Outlook application to change EML to MSG file the application offers two free ways to change the file extension.

Method 1: Use the Drag & Drop Option
Method 2: Use Save as Option

How to Change EML to MSG with Drag & Drop Option?

Firstly, on your PC, start the Microsoft Outlook application.
Next, choose a folder that contains the EML files that you previously added.
After that, select all emails by pressing the Ctrl+A key.
Now, on your PC create a new folder named “MSG Files.”
Lastly, drag and drop the chosen emails into the newly created folder.
Click on the file menu under the info section.
After this, chose the Outlook Message Format (.msg) option.
Now, choose your desired destination location to save your resultant data.
Repeat the same steps with other Outlook folders.

What are the Steps to Convert EML to MSG File with Save As Option?

Firstly, Open the Outlook on your PC.
Now, open the EML file folder and select an email.
After that, click on the File tab and select Save as option.
Now, select the location and enter the file name.
Then, choose the file type as Outlook Massage Format- Unicode.
Next, click on the save button to convert EML to MSG file.
Lastly, repeat the process if you have more than one EML file.

Why EML to MSG Conversion Manually is Not a Good Option?

Change EML to MSG using Outlook is a simple and free process but it also comes with limitations such as:

Download and install Outlook in your system.
Now, select an email, click on File, and select Save As option.
Select a desired location and set a file name for your resultant data.
Now, choose Outlook Message Format – Unicode from the Save As Type menu.
Click the Save button to get the MSG email data file.
You can repeat the same steps with other email data as well.

So as you know reading the limitations to convert EML to MSG manually is not the right solution. Here we have an expert suggestion that will help you convert EML files to MSG files. In the next section, we explore the expert’s recommendation to change EML files to MSG format. Just read on to understand the way for EML to MSG conversion directly in bulk.

How Expert’s Convert EML to MSG Files in Batch?

BitRecover EML Converter is a simple-to-use solution to migrate EML files into MSG format. The tool does not need any external application to migrate EML to MSG format. The software is programmed in such a way that it supports the EML file of all EML-supported formats. No, file size limitation is imposed by the tool to execute the data conversion process.

The application provides various options that make it easy for users to migrate data like speedy data migration, bulk data conversion, Windows supportive, desired file saving path, etc.

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Quick Steps to Change EML to MSG Format

Follow these steps to change EML to MSG format:

Firstly, Download & Run EML to MSG Converter Software & select EML files or folders.
Secondly, choose the desired EML files or folders for conversion.
Enable required EML data to convert into MSG for Outlook.
Select MSG as a saving option & a destination path.
Lastly, start to convert EML files to MSG format.

Read More: How to Convert EML Files to PNG?

Advanced Features of EML to MSG File Converter

Maintains Email Attributes: The EML to MSG Conversion tool retains the email properties in exact form after migration from EML files to MSG format.
Multiple File Names: It offers various file naming options to save the output data files accordingly while you change EML file to MSG.
Batch Conversion: It has the ability to batch change EML file to MSG format directly without losing any of your important data.
Supports Windows OS: Accessible on all Windows versions to convert EML to MSG format
Retains Data Integrity: The utility maintains the integrity of data after you have finished to change EML file to MSG .
Desired Saving Location: This EML to MSG Converter freeware gives permission to store the output at any location on the computer.
Dual File Selection Options: This application provides two options to load EML data that is a user can choose EML files or folders to convert .eml to .msg format.
Compatible with All EML Files: It supports EML files taken from email clients like Windows Live Mail, eM Client, Outlook Express, Zoho Mail, Zarafa, DreamMail, Mozilla Thunderbird, SeaMonkey, The BAT, Kunomail, etc.
Final Words

Free manual methods such the drag and drop feature and Outlook’s save as option, is used to convert EML files to MSG format. These techniques do have some significant drawbacks though such as the need to install Outlook not being able to handle data in batches the possibility of data loss and the lengthy process involved. We hope you are clear about the what is the difference between EML and MSG files? as well

However, we highly advice you to use a professional EML to MSG Converter if you want to convert EML files to MSG format quickly and without hassles. Advanced features of this utility include data integrity protection batch conversion support email attribute maintenance and different file name possibilities. It is the better option for those that need to handle big numbers of data because it streamlines the conversion process and increases productivity.