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From your personal desktop to your business files, we've got you covered

We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!

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Why choose Zamzar?

With Zamzar, file conversions are easy, reliable and convenient, so you can quickly convert your documents, images, videos, and more, to the formats you need. With faster downloads of converted files, and friendly and helpful support when you need it, you'll have everything you need to work with your files.

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Concerned that Zamzar won't work because you are running an operating system that isn't Windows? There's no need to be! Zamzar works on all operating systems.

Converting your file is now as easy as uploading your file, choosing the format you want to have it converted to, and clicking the ‘Convert Now’ button.

Real-time Conversions

Converting your file is now as easy as uploading your file, choosing the format you want to have it converted to, and clicking the ‘Convert Now’ button.

When you need a file converted, you can have confidence in us that we


When you need a file converted, you can have confidence in us that we'll get the job done correctly, quickly and securely.

New conversion types get added to our site regularly. We now support over 1100 file-conversion types!

New Conversion Types

New conversion types get added to our site regularly. We now support over 1100 file-conversion types!

Tools to suit your file conversion needs

You'll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you'll easily find what you need and soon have your files in the formats and sizing that work for you.

MSG Document Format

MSG Converter

The MSG file format was developed by Microsoft for its Outlook email program. Microsoft Outlook can be accessed online with internet browsers, or through software applications, which are available for all the main operating systems. MSG files can be opened within Outlook, but also with other some other applications.

MSG is short for ‘message’, which is what the files are. However, as well as email messages, Outlook will also save contact and calendar items into MSG format. Like the EML format, MSG email files include a header with the email subject, the sender and receiver, and the date and time the email was sent, as well as the body of the message. The files can also include email attachments. Contact files from Outlook that are saved/exported into MSG format would include whatever contact information had been entered, while calendar items would include the time, date and location of the meeting or diary item, plus any extra information.

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EML Document Format

EML Converter

EML is one of the most common file formats for email messages. It was developed by Microsoft. EML files include the plain text of the message and subject line, along with details of who sent and received the message, and the date and time it was sent. If the sender included attachments with the email, these are also saved within the file, increasing the total size.

Not all email clients use the same format for saving message files. However, Microsoft Outlook Express, Mozilla Thunderbird and Lotus Notes are all examples of email clients that save into EML. Even if you use a different email client, you can usually use that program to open EML files if they’ve been sent as an attachment. You can also usually open EML files with web browsers, and sometimes they will open in plain text editors like Notepad or Apple TextEdit.

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How to convert a MSG to a EML file?

  1. 1. Choose the MSG file that you want to convert.
  2. 2. Select EML as the the format you want to convert your MSG file to.
  3. 3. Click "Convert" to convert your MSG file.

Convert from MSG

Using Zamzar, it is possible to convert MSG files to a variety of other formats:


Frequently asked questions

If you’ve got any questions about converting or compressing files with Zamzar, we’re happy to help! We’ve answered a few commonly-asked questions below, to get you started, and you can find out more information about file conversion and compression with Zamzar, in our Help centre.

It’s easy to convert .MSG to .EML files using online conversion tools such as Zamzar. The free tool on Zamzar’s website also lets you convert multiple .MSG files at the same time – just upload them to the online converter, select EML format, then ‘Convert Now’, and then download the new files.

In Microsoft Outlook, you can also save emails as plain text files. It’s then possible to rename the file extension of these to .eml. However, you may find it easier to export the files in MSG format from Outlook and then convert them with Zamzar.

MSG and EML are both file formats for emails, but they’re not the same. MSG is the format used by Microsoft for Outlook messages, and EML is the format used by most other email programs. You can use the Outlook app to save emails as plain text files and then change the file extension to .eml. However, Zamzar is a simple way to convert directly between MSG and EML. Just upload your files to the three-step tool on Zamzar’s website, click to convert them into EML, and then download the new files.

You can open MSG files on Mac if you have the Outlook for Mac app installed. You can also convert MSG file into another format like TXT or EML using file conversion tools such as the one on Zamzar’s website. Zamzar’s three-step tool can convert files in just a few clicks. Simply upload one or more files to the free online tool, select your preferred format and click ‘Convert Now’. You’ll then be able to download your new files to view on your Mac.

Microsoft Outlook is the program that is designed to open a .MSG file. If you can open the .MSG file in Outlook, you can use the ‘Save As’ menu option to save it as a plain text file or PDF. However, if you don’t have Outlook, you can convert .MSG files into EML or other more easily viewed formats using file conversion software or free websites like Zamzar. To use Zamzar’s online tool, simply upload your .MSG file, select .EML or another format to convert it into, and then download the new file when ready.

A simple way to open a .MSG file without Outlook is to save it into another format using an online file conversion tool like Zamzar. It only takes a few clicks to convert .MSG files with Zamzar – upload them to the free tool on Zamzar’s website, select a format to convert them into (like TXT, EML or PDF), and then download the converted email files. You can also download file conversion apps to your device, but a big advantage with websites like Zamzar is that you can convert files without installing extra software.