Converting Outlook .PST Emails to MBOX Format with Eml Viewer Pro

Are you leaving Microsoft Outlook for another email client?  Most non-Outlook clients are unable to import Outlook .pst/.ost files because the format is proprietary to Microsoft.  A workaround is to convert your Outlook .pst emails into an open email format called MBOX, or MBX.

For converting email files to different formats, EmlViewer Pro by Encryptomatic LLC (also known as PstViewer Pro) is a helpful and affordable Windows software tool.  EmlViewer Pro can read in files such as Outlook .pst, .ost, .eml, and .msg, then output the emails to different target formats, including MBOX, CSV, HTML, PDF, image files like PNG, GIF, and more.

Today’s lesson is focused on showing you how to use EmlViewer Pro to convert Outlook .pst files directly to .mbox.  MBOX is an open format that is supported by most email clients (other than Outlook) including Mozilla Thunderbird.
The first step is to open EmlViewer Pro and choose your .pst file.  Each email in the Pst file will be displayed on a line in the mail list.
Next, click on EmlViewer Pro’s “Export” menu tab, then select “MBOX from the drop down list. The partial screen shot below shows the Export menu with MBOX selected.
Screen shot of PstViewer Pro Export menu with MBOX selected.
Export Menu in EmlViewer Pro software.
Next, select the emails you want to add to the MBOX file from EmlViewer Pro’s mail list. To select all emails, type CTRL-A.  Selected emails are highlighted in blue.  You can select all emails, a range of emails, or just certain emails.
To begin the export process, click the yellow “Export” button.
EmlViewer Pro will display a status window that shows the progress of your conversion.
If you have any questions, please post them in the comments here, or use our live chat to talk with us!

Converting EML Emails to ODT or DOCX Format

Screen image of docx/odt email export profiles.

For some time, EML Viewer Pro users have been asking us to add the ability to bulk convert .eml files into editable documents that they can use in MS Word or an open source editor such as Libre Office.  With the release of EML Viewer Pro 5, we’re glad to finally tell you that we have added this ability to your software.

EML Viewer Pro can now bulk export .eml or .msg email files directly to .ODT or .DOCX format.  The process for doing this as simple as selecting the “Export to ODT” or DOCX profile from the list on the main toolbar.   For the benefit of readers who have not tried EML Viewer Pro yet, we’ll walk you through the process in this article.

Convert .EML Files to .ODT or .DOCX Documents With EML Viewer Pro

The first step of course is to have Eml Viewer Pro (also known as PstViewer Pro) installed on your Windows computer.  You can download it from here. A free trial will last a full 15 days.

When EML Viewer Pro starts, use the folder navigation on the left side of your computer to locate a directory with .eml or .msg files.  The messages will be read into EML Viewer Pro’s mail list.

Image shows emails displayed in EML Viewer Pro mail list.
Emails displayed in mail list

Select the email messages that you want to export to .odt/.docx format.  You can select them individually, or type Ctrl-A to select all of the messages in the list.  Note that we do not limit the number or emails you can convert at one time. Generally, we encourage you to work in batch of 10,000 emails or less, but larger numbers are also supported.

After your .msg or .eml files are selected, choose either the “Export to ODT” or “Export to DOCX” export profile from the dropdown list on the main toolbar.

Select the email export profile from the drop down list.

Now click the “Start” button to begin the export operation (the start button is the green arrow pointing to yellow paper on the left side of the drop down list).  You may be asked to select a folder the DOCX or ODT files will be placed.

Images shows the Browse for Folder, and selectable folders.
Select a folder for the odt/docx files

And that’s all there is to it!  The short video below recaps the process of converting .eml or .msg into .odt using Eml Viewer Pro  EML Viewer Pro is $69.99 for a single license.
Download a free 15 day trial and try it yourself!

Update: EmlViewer Pro 8 will soon include the ability to combine multiple .eml email files into a single .DOCx file for editing. Contact our support team to learn more.