How to Convert MSG to MHT Format: Step-by-Step Guide

  Kumar Raj
Written By Kumar Raj
Anuraag Singh
Approved By Anuraag Singh  
Modified On July 26th, 2025
Reading Time 7 Minutes Reading

MSG files are mainly used to save one’s email conversation, which are exported from Microsoft Outlook, but at some point, you are required to convert MSG to MHT format so that you can easily share, archive and easily able to view the emails in your respective browser. In this article, we’ll discover how to export Outlook MSG files to MHT format using both manual and automated methods seamlessly.

But first, let’s understand the file format

Explanation of MSG and MHT File Format

#MSG Format:

  • It is a file format which is designed by MS Outlook
  • To save individual messages which include all types of content, like attachments, metadata, and formats.
  • Mostly used for backup of the email and some legal paperwork.

#MHT Format:

  • It’s also known as an MHTML file, which is a website-based page which is in HTML format.
  • It can be easily accessed in any of browsers such as Brave, Chrome, etc.
  • This email file format can be viewed without installing Outlook.

5 Quick Steps to Convert MSG to MHTML Format

  1. Install and set up MSG to MHT Converter
  2. Click Export by selecting the MSG email files you want to convert.
  3. Choose MHT format in select export type.
  4. Browse the Location to store the output file.
  5. Then, finally, click on Export MSG to MHT file by saving its exported path.

Note: If you want to instantly convert Outlook MSG files to MHT format, then you can follow these steps, or if there is any query, then check the full process below in the article.

Read: Use Best Software to Convert MSG File to PST Format.

Let’s explore the reason behind to export MSG to MHT format.

Why Do I Need to Convert MSG to MHT Format?

Main reason to convert .MSG to .MHT file is:

  • The main reason is that this individual file stores all of the content in HTML format, which helps you to archive in a simple process.
  • MHT files can easily be read on browsers without having Outlook installed.
  • This file format is very less in size so that it can be sent through email and also get saved on drive efficiently.
  • MHT format ensures that the original data structure, including attachments and formatting intact even after the conversion process.
  • After convert MSG to MHT format, you can easily view and open MSG files without Outlook and also in different clients which accept it .MHT file format.

Let’s discover some ways and solutions to effectively export MSG Files to MHT.

3 Effective Methods to Convert MSG to MHTML File Format

  • Use a Professional Tool
  • Use Microsoft Outlook’s Save As Option
  • Use MS Word with Outlook

Let’s discuss them quickly:

Method 1: Convert MSG to MHT File Using MS Outlook Save As Option

This method is a simple way to convert .MSG to .MHT is using the built-in Save As option in Outlook.

Steps to use:

  1. Open Outlook and double-click to open MSG file.
  2. Navigate to file, then click on Save As.
  3. Choose MHTML format in Save As type.
  4. Finally, select the destination or make a new folder to store the output file.
Merit:

  • No requirement to install any other software.
  • Very easy and quick solution to convert a single MSG file to MHT format.
Demerit:

  • Recommend against using it for mass conversion.
  • Risk of accidental data loss, such as formatting and attachments.

Method 2: Export MSG File to MHT Format Using MS Word with Outlook

Here is one more manual method which can help you convert Outlook MSG to MHT by using Word for saving.

Steps to use:

  1. Open MSG file in Outlook.
  2. Press action and click on edit message if you want to edit something.
  3. Select all mails using CTRL+A and copy same using CTRL+C.
  4. Paste all in MS Word using CTRL+V.
  5. Go to file and save as where you’d like .MHT format.
  6. Store the file where you want to save it in your system.
Merit:

  • It maintains file formatting before saving file.
  • Also, here you can edit message if you want to change some.
Demerit:

  • To mass convert MSG files to MHT format manually requires a lot of time.
  • This method requires installing both Outlook and Word.

Note: These manual methods have many consequences while exporting, so to prevent these issues, we suggest using an offline and automated tool so that you’ll not face such problems in your conversion process.

Method 3: Use an Automated Tool to Convert MSG to MHT Format

Those who need to save their efforts and time and want to use a trusted, reliable tool, we recommend using SysTools MSG Converter, which can easily export MSG to MHT files in bulk.

 
Also, it maintains and preserves original formatting and attachments without any data loss while converting MSG files to MHTML format. Let’s explore more features.

Top Benefits of MSG to MHT Converter Tool

  • It can advanced preview of the email conversation like normal view, hex, properties, etc.
  • This is a standalone software which don’t need any Outlook installation.
  • Provides specific filters to convert MSG to MHT file, such as date, subject, email ID, etc.
  • Maintains the data structure intact as compared to the original file while exporting.
  • Very simple and user-friendly interface, which can be useful for both tech and non-tech related users.

Here’s how it works to understand the tool more precisely:

  1. Open and launch the aforementioned tool
  2. Select the files which you want to convert as files are displayed on your interface.
  3. Click on Export, and a pop-up will ask you to choose a file format like MHT.
  4. Tap on Advanced Settings if you want to apply some Filters like date, time, and Special Characters like underscore, space, etc.
  5. You can also add Categories such as email, calendars, and notes.
  6. After applying, click on Save button.
  7. Press Browse button to add Destination where you want to save your file.
  8. Click on Export button to finally convert MSG to MHT format.

Conclusion

In this guide, we’ve discussed how to convert Outlook MSG files to MHT format without Outlook installed by using both manual and automated methods. If you’re working with a small volume of MSG files, then you can use manual solutions, but for large volumes, we suggest you to use an automated MSG to MHT converter designed by SysTools, which quickly, easily, accurately and efficiently convert MSG to MHT files. Always take a backup before converting into any file format to avoid the deletion of important data.

FAQs on How to Convert Outlook MSG Files to MHT Format

Q.1 How to export .MSG file to .MHT without Outlook?

A. Use an automated tool like MSG to MHT converter, which doesn’t require any Outlook installations.

Q.2 Are manual methods suitable for bulk exporting?

A. No, manual method can’t able to convert at a bulk level. Instead, you can use the recommended software above.

Q.3 Can I convert MSG in offline mode?

A. Yes, you can transfer MSG files to MHT format if you’re using an automated method, especially a converter which is designed by SysTools.

  Kumar Raj

By Kumar Raj

Kumar Raj has more than 14 plus years of expertise in migration technology. He likes to create, edit, and optimize web material on topics conversion of email data, and migration of email data. For the majority of the past ten years, he has been a devoted fan of the technology scene.