How to Edit EML File Directly Using Email Clients? Solved
Published: October 28th, 2025 • 4 Min Read
Are you looking forward to knowing how to edit EML file? The process is easier than you think. The only two things required are the EML files and an Email client that supports EML file as an import option. Whether you need to correct old email content, formatting, or add attachments, the task can be completed in a few simple steps. Today, within this blog content, we will describe a detailed step-by-step process for how to modify EML file using Outlook and Thunderbird email clients.
Pre-Steps Before Starting the EML Editing Process
- Email Client Installed on your Mac or Windows Device: Ensure you already have the email clients installed on your system to avoid any last-minute confusion before starting the EML modifying process.
- Backup Your EML Files Before Modifying: Always keep a copy of the EML file safe on your local storage before starting the EML modification process.
- Use the Latest Updated Version of Email Clients: Cross-check that you are using the latest version of email clients. Since, outdated version of the email client may lack to import EML files and advanced features for editing EML files.
Free Ways to Modify EML File Using Outlook or Thunderbird
If you are a Windows or Mac OS user and need to edit EML files using your email client. Then you can do so using your email client. To make the process cleaner, we are going to explain two separate methods for editing an EML file based on different OS users. For Windows users, we will use the Outlook email client. However, for users using a Mac device, we will be using the Thunderbird email client. Now, let us understand how we can modify any EML file for free on our respective devices.
How to Edit EML File Using Outlook on Windows?
- At the start, locate the EML file on your desktop.
- Next, right-click on the EML file and choose Open with Outlook (classic).
- Then, click on the Move button from the ribbon and select Draft folder.
- After that, go to the Draft folder and click the EML file moved in the last step.
- Finally, you can edit the EML file just as you edit a new email from the right window.
How to Modify EML File Using Thunderbird on Mac OS?
- First, locate the EML file on your Mac.
- Next, open Thunderbird and keep it side-by-side with the Finder window.
- Then, drag and drop the located EML file to Thunderbird in any folder.
- After that, open the dropped EML file and right-click on it from the viewing panel.
- Finally, select the Edit as New Message option to edit the EML file using Thunderbird.
Tips to Avoid EML File Corruption During Editing
- Avoid Using a Text Editor for Complex EML File Edits.
- Use Consistent Encoding for EML Files.
- Do Not Edit Attachments Directly Inside the EML File from an email client.
- Avoid Renaming the EML File Extension Directly.
- Avoid Editing While the EML File Is in Use.
How to Convert and Edit EML Files? (Bonus Point)
For complex EML edits, it is suggested to initially convert the EML files into an editable format using the trusted EML converter and then edit it. To do so, you initially need to install the suggested utility. Since this utility is equipped with several editable format options, like converting EML to PDF, DOC, TXT, HTML, etc. Lastly, you may easily edit your EML files. Now, let us learn how to use the recommended application.
- At the start, download and run the recommended utility.
- Next, click on the Select File or Select Folders option to add EML files.
- After that, enable the EML file for conversion and select the editable format saving option.
- Finally, choose the storage path and click Convert to turn EML into an editable format.
Concluding Thoughts
In conclusion to the above blog on the topic of how to edit EML files using email clients. We have discussed two working techniques to overcome your problem for both Mac and Windows. To solve the EML edit problem for Windows users, we have seen how to modify EML file using Outlook. Secondly, for Mac users, we have seen how to use Thunderbird to overcome the user query. Lastly, we have discussed a bonus solution to solve the complex EML file edits problem.