How to Import EML Files Into Office 365? Best 3 Methods

Short Introduction: If you are looking forward to learning how to import EML files into Office 365, then you are on the right page. This informative article will explain you to easily open EML files in Office 365 using manual and automated ways. 

In today’s digital world, where most professionals and big businesses have thousands of emails to handle, they don’t prefer desktop-based applications to store their data as it is easily accessible. That’s why most of the users are shifting to import EML files to Office 365, as it allows users to access data from anywhere at any time.

You can open EML file in Office 365 manually using 2 ways: first, by the drag & drop method via Outlook, second, by ImportExportTools NG via Thunderbird, or directly use the third-party EML to Office 365 migration tool. Whereas the manual way is risky for large EML files as it does not provide data security guarantees and disturbs the original data structure, an automated tool has the power to import large files in bulk without losing data or original data structure.

So, let’s learn the best ways to transfer your EML files into Office 365.

Can I Import EML Files Into Office 365 Directly?

1. You cannot open and import your EML files directly, as:
2. EML does not provide any option to import EML files directly into any application or email client.
3. Also, on the other hand, Office 365 does not support the EML format. You cannot directly open and view EML files in Office 365.

Open an EML File on Office 365 Manually

You can import your EML files into Office 365 manually using 2 email clients. First, you can use MS Outlook (Paid) and transfer through drag & drop or open with an option. Secondly, you can opt for Thunderbird (Free) and import using the ImportExportTools NG add-on. Let’s see both methods working steps briefly:

# Pre-Migration Checklist

• Check whether EML files are accessible and are not corrupted.
• You should have a valid Office 365 account with all the credentials.
• Take a backup of your file, in case you lose the data.
• The destination of the mailbox should have enough storage space to handle the data files.

Method 1: Open EML File in Office 365 Using Outlook

1. Open Outlook and go to file > info > add account and enter your credentials to configure your Office 365 account.
2. Now, create a new folder, for example, “imported EMLs” in your Office 365 account.
3. Then, go to your EML folders in Outlook > press Ctrl + A > and drag and drop into the newly created account.
4. This way, you will be able to import your EMLs into Office 365.

Note: This application is not free to use; you will have to buy the Outlook subscription, and it needs to be configured properly; otherwise, it may lead to data corruption. 

Method 2: Import EML Files Into Office 365 via Thunderbird

1. Firstly, open your Thunderbird account and go to Tools > New Account > Mail Account > enter your credentials and sign in.
2. Now, go to the settings gear > click on add-ons and themes, and search ImportExportTools NG and install it on Thunderbird.
3. Then, create a new folder in your Office 365 account or select the folder you want to import your EMLs into.
4. Right-click on the folder > ImportExportTools NG > Import EML messages > all messages from a directory and subdirectories.
   
   
5. Now, select the files/folders you want to import, and it will start syncing all the data into your desired Office 365 account.

Note:  It is a time-consuming process, and it may cause data format loss and corruption of large EML files while importing. Thunderbird does not give a guarantee of data security or preserving the original structure.

How to Use the EML to Office 365 Migration Tool? Guide

1. Select the EML file/folder by choosing the File or Folder option. The Select folder option converts an unlimited number of EML files to an Office 365 account. Otherwise, you can use the Select File option.

2. The utility will display all EML items, check the desired folders, which are needed to move from EML to Microsoft Office 365, and click Next.

3. Furthermore, the software provides advanced search functions, and by using this, users can search in EML files. The program also offers various filters for searching emails.

4. Because we’re talking about how to open EML file in Office 365 in this article, pick Office 365 as a saving format.

5. Here, enter your Office 365 credentials, i.e., Email Address, Password. Finally, click the Save button to import EML files into Office 365.

We can easily conclude from the foregoing that it is one of the quickest solutions available today for importing EML to Office 365. You can also use the EML to Office 365 backup tool to back up your complete mailbox data in one go, with 100% data security. It will help users to import EML files into Office 365 accounts effectively.

Why Choose an Automated Approach Over Manual? Expert Tool Features

This tool offers many benefits to users, some of which are mentioned in the following sections-

• Quick & Advanced Search Function: Import EML to Outlook 365 using this powerful migration tool. It has a search feature that enables you to look for certain EML emails using various criteria like date, time, topic, copy, and so on.
• Support Batch EML to O365 Conversion: It allows you to mass import EML files to Office 365 while keeping data integrity without any size limitations. Whereas you cannot import your files in bulk using the Outlook application.
• Migrate with All Elements: The software allows you to import EML to Office 365 with all embedded attachments, images, links, fonts, and all the other important elements. On the other hand, Thunderbird transfers the files in bulk but is unable to keep the important elements intact.
• Preserves Original Data: The manual method does not guarantee to maintain the original structure & hierarchy. So, you can import EML files into Office 365 using this expert tool without losing the original data structure. It keeps the hierarchy & structure the same as before.
• Automatic Data Sync: When you select the files/folders to add the files into the tool, it syncs the entire data automatically. You just have to select the top-level folder, and it automatically loads the entire data, like sub-folders or files inside one folder, and displays it.
• Independent Wizard: Manually, you need Outlook or Thunderbird to be installed to open EML file in Office 365, but if you use the software, it doesn’t need any application tor third-party software to run.
• Offline Utility: This expert tool works without internet connectivity and can be used anywhere; on the other hand, you would need internet connectivity to import EML files into Office 365 manually, which is ultimately risky for the data.

Automated vs Manual: Clear Comparison