Convert Outlook Emails from .Msg to .Eml Files

An illustration of an email viewer. On a laptop, an envelope and @ symbol appear over an illustration of the earth.

EML Viewer Pro (also known as PstViewer Pro or MailDex) is a  versatile Windows software app. You can use it to manage, search and view emails that are formatted in a variety of common formats, including .EML, .MSG, .MHT, .PST,  .OST and .OLM files.

One of the nice features of EML Viewer Pro is its ability to convert and export email messages from one format to another.  With the latest release, you can now export email message content to .EML format. .EML files are formatted according to the RFC-822 spec. As an open format, it is supported by most email clients, including Windows Mail and Mozilla Thunderbird.  Because it is an open, non-proprietary format it may be useful to convert emails into .EML files for purposes of email archiving, long term preservation or sharing.

Here’s how to convert Outlook .Msg files into .EML files using EML Viewer Pro.

First, open EML Viewer Pro, and find the folder containing your Outlook .msg files.   Click on the folder, and EML Viewer Pro will read in the msg files and display them in the main list.  Select any listed email message to view it in the reading pane. Double click on an email to open it in full screen view.

Select the emails you want to convert into .EML files.  To select a message, you click on it.  To select multiple messages, hold down the control key, and click on the messages you want.  To choose all of the emails in the list, type Control-A on your Windows keyboard.  Messages that are selected are shown in the list with a blue highlight.

Picture of EML Viewer Pro main menu with msg files selected.
Eml Viewer Pro main screen. Selected email messages are highlighted blue.

When you have selected the emails, you can export them in a single batch operation.  Choose “Export to EML” profile from the toolbar drop down list.

Picture shows how to select the "Export to EML" export profile in EML Viewer PRo
Choose the “Export to EML” profile

To begin the conversion process, click the Export button (the icon with the yellow paper and the green arrow).  EML Viewer Pro will go to work exporting your .msg files to .eml files.

Export process progress bar
Exporting msg files to eml

There is no limit to the number of messages you can export (note: if you are using EML Viewer Pro in trial mode, the limit is 50 emails per export operation. This is removed after the software is purchased).

If you need an flexible tool to help manage your email content, try EML Viewer Pro. It’s several tools in one: view, search, and export.  You can download a free trial and learn more about EML Viewer Pro from the product website.

Open EML Files With EML Viewer Pro

Screen shot showing location of MailDex 'create project' button.

EML Viewer Pro is an advanced reader for EML email files.  EML files are created by email clients, such as Outlook Express, Thunderbird or Windows Live Mail.

EML Viewer Free Download
15 Day EML Viewer Pro Free Trial. Requires Microsoft Windows  7/8/10/Server
EML Viewer Pro main screen
EML Viewer Pro main screen

With EML Viewer Pro, you can search through directories and sub-directories filled with EML files, and manage those files in important ways:

  • Export EML files to PDF,
    • with file attachments extracted to disk
    • with file attachments embedded as files
    • with most file attachments converted to the image
  • Export EML files to MBOX
  • Export EML files to GIF, TIF, BMP, JPG, PNG
  • Export EML files to CSV (excel)
  • Export EML files to HTML or MHT
  • Batch print EML files
  • Search EML files
  • Perform EML file conversion operations from the command line
  • Adjustable User Interface

EML Viewer Pro is a multi-functional email viewer. It is actually six email viewers in one. In addition to EML files, you also use EML Viewer Pro to manage Outlook .PST files, .OST files, .MSG files, Winmail.dat files and MHT or MHTML files.  Microsoft Outlook is not required for EML Viewer Pro to open Outlook .pst or .msg files.

EML Viewer Pro is designed to save you time. The most important functions are quickly accessible through the main toolbar.

EML Viewer Pro toolbar
EML Viewer Pro Toolbar

Toolbar accessible functions include:

  • Reply to Email
  • Reply All to Email
  • Forward Email and attachments
  • Search email messages
  • Print email messages
  • Quick Append Email to a PDF file

As of version 4.6 of EML Viewer Pro, some additional functions have been moved to the main tool bar for your convenience.

Email export function are shown in the EmlViewer Pro toolbar.
Email Export functions on the EML Viewer Pro tool bar

Export EML to PDF

EML Viewer Pro is a great tool for export EML files to PDF format. Using the Export functionality on the toolbar, you can easily exported your selected email messages to PDF and other formats.

Select the emails to convert in the mail list, choose the desired Export Profile (such as PDF – attachments embedded which will convert your selected email to PDF format), then click the Export button (green down arrow). EML Viewer Pro will go to work exporting your email messages.

EML Viewer Pro lets you perform four specific EML to PDF operations:

  1. EML Files can be exported with file attachments extracted.
  2. Embed file attachments within the PDF file. This means that the file is stored within the PDF as a separate file which can later be extracted by any standards compliant PDF viewer (like Adobe Reader).
  3. You can also convert most file attachment within a .eml file into the PDF image. If an attachment is unable to be converted, it will then be embedded within the PDF file to preserve the context.
  4. Export EML files individually to an existing PDF file. This means you can individually export email messages as you discover them, to a single PDF file.

Download a free trial of EML Viewer Pro and use it for 15 full days, with no obligation.

If you need a capable EML viewer without all of the features of EML Viewer Pro, click here to learn about the Lite version, called EML Viewer Lite.