MSG to EML: How to Convert Outlook Email from Outlook .MSG to .EML

There are two basic formats for storing individual email messages: .eml and .msg

The .eml open message standard was pioneered by a document called RFC-822 which set the convention for creating and formatting email messages.

Microsoft, however, decided to pursue a different path.  Outlook email messages have the file extention .msg, and are not compatible with email clients like Thunderbird that open .eml files.  Microsoft Outlook can open both .msg and .eml files.

Converting Outlook .Msg emails into .Eml files ensures that the emails are accessible in an open messaging standard, which makes email more suitable for long term storing or archiving.  There are also different situations where importing email requires conversion of email from .msg to .eml.

There are various tools on the market that can accomplish this. The two tools we will look at today are developed by Encryptomatic LLC.

MessageExport for Outlook

MessageExport is an Outlook add-in.  If you already are using Outlook, MessageExport will let you save emails directly from Outlook to .eml format, as well as PDF and many other formats.

MessageExport supports Outlook 2016/2013/2010 and 2007. After installation, it becomes part of the Outlook toolbar.   Using MessageExport is as simple as selecting one or more emails from the mail list, choosing “Export to EML” from the Outlook toolbar, and clicking on the “Export” button.

Outlook Msg to Eml with MessageExport
MessageExport saves Outlook email to EML files.

PstViewer Pro Eml Viewer

PstViewer Pro (formerly called EmlViewer Pro) is an email viewer that reads .eml, .msg, .pst, .ost and other popular email file formats.

To convert .Msg to .Eml with PstViewer Pro, first select the Windows folder containing the .msg files.  Next, highlight the .msg files in the mail list that you want to convert to to .eml
Finally, select “Export to Eml” from the drop down list and click “Export.”

PstViewer Pro will then convert the msg files into eml files. Because PstViewer Pro supports many other formats, you can mix and match between them to accomplish a wide range of email conversion tasks.

PstViewer Pro screen shots
Convert .Msg email to .Eml with PstViewer Pro’s conversion tools.

Try Either or Both, Free

PstViewer Pro and MessageExport both offer 15 day free trials from their product home pages.   If you own Outlook and are comfortable working from the Outlook GUI,  then MessageExport is likely the best choice for you   If you want to work independently of Outlook or if you do not own Outlook, then PstViewer Pro will get the job done for you.

Please post any questions below. We would love to hear what you think.

Converting Emails from .EML to .HTML Files.

A .eml file is an individual email message that has been moved outside of an email client, such as Mozilla Thunderbird. EML files may contain pictures, file attachments, email metadata, and more.

Its very common to receive email messages that are formatted either as Text (.TXT) or HTML files. Embedding HTML in emails lets the sender mark up the text. They can add formatting, titles, colors, images and logos to their email messages.

Download Eml Viewer for email.
Download .Eml Viewer by Encryptomatic LLC.

In an earlier article, we described how to convert .eml to text files with EmlViewer Pro (also known as PstViewer Pro), the email https://www.emlviewer.net/2013/08/19/how-to-convert-multiple-eml-email-into-text-files/viewer software for Windows that lets you discover and convert email messages.  If plain old text files are too boring for you, let us show you how to convert .eml email files directly into HTML documents. You could even post them to your web server, if you like, for the entire internet to see.

Converting .EML to .HTML Files

Saving a .eml email file as html file will save the HTML code to a .html file.  Instead of having all of the elements contained in a single .eml file, an email converted from .eml to .html will be broken apart, just like a regular web page. The individual elements will be stored as separate files that are linked from the resulting .html page. Any embedded elements, like pictures, will be stored in a folder.

Converting .eml files to .html is useful if you want to preserve the email content, but also want easy access to embedded images or  file attachments.

Although we are describing how to convert .eml to .html, this same process can be used with EmlViewer Pro to create html files from emails stored in .msg, .pst, .ost and .mht files. You can convert one email to html, or bulk convert thousands of emails to .html.

Eml Viewer Pro

If you would like to follow along with the step by step instructions, download a 15 day free trial of EmlViewer Pro software (also known as PstViewer Pro)for Microsoft Windows by Encryptomatic LLC.  EmlViewer Pro is also known as PstViewer Pro. At one time EmlViewer Pro and PstViewer Pro were separate products, but they have recently been combined into a single more powerful product able to process many different email formats.

Step 1 Start EmlViewer Pro. Using the folder explorer on the left side of the screen, select the folder containing your .Eml Files. The emails will be viewable in the EmlViewer Pro mail list.

Step 2  Select the Eml files you want to convert to HTML.  Selected files will appear highlighted in the mail list.

Screen image of EmlViewer Pro with emails selected in preparation of conversion to HTML format.
Selected emails are highlighted

Step 3  Select the target export format “HTML”

Screen shot of EmlViewer Pro with HTML export profile selected in list.
Choose HTML export profile

Step 4  Click the “Export” button to begin the export process.

The Eml files will now be converted into Html.  Lets take a look at the folder and see how the files are organized.

Notice that the folder contains .html files that use the email Subject line as the file name. The image elements for emails that contain them will be placed in a sub folder, which will share the same name as the html file. Folder organization keeps the email elements (images and file attachments) from being mingled with other emails.

Screen shot of a Windows folder showing the organization of HTML index and image subfolders.
Folder structure of emails converted to HTML files

To view the email as a HTML page, click on it, and Windows will open it in your web browser,

Screen shot of an email displayed in Google Chrome web browser. The email has been converted to a HTML file by EmlViewer Pro software.
An Email that has been converted to a HTML file, displayed in Google Chrome web browser.

If you have any questions about EmlViewer Pro, post them below, or use the online chat service here to talk to a support technician.