How to Convert OST to EML Format with Attachments

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  • Updated on December 29th, 2023

Summary: OST (Offline Storage Table) files store Outlook mailbox data offline. On the other hand, EML (Email Message) files are individual email messages.  In this technical blog, we will show you how to convert OST to EML by using the best techniques. We will also introduce an automated solution using the Aryson OST to PST Converter. Moreover, we will also discuss the reasons behind the conversion. Read this blog until the end to find the right, quick solution to resolve this issue. After reading this blog, you will be able to convert OST files to EML format in bulk. Now let us get started right away.

Why Convert OST files to EML?

There are so many reasons users are converting their OST files to EML format. It allows for portability and easy sharing of emails outside of Outlook, and it enhances accessibility and collaboration in a professional context. Let’s know the difference between OST and EML files.

FeaturesOST FileEML File
File TypeOffline Storage Table (.ost)Email Message File (.eml)
StorageLocal ComputerIndividual Files
StructureProprietary FormatOpen Standard
SearchLimited Within OutlookFull-Text Search
AttachmentsEmbedded Within the FileSeparate Files

Once you have seen the features mentioned above, you can review the procedures for transferring OST files to EML files without attachments.

Top 2 Methods to Transfer OST to EML

In this section, we are going to show you the best techniques to convert the OST to EML by using manual and advanced methods.

  • How to Export OST to EML Online for Free?
  • How to Convert OST to EML in Bulk?

Method 1: How to Export OST to EML Online for Free?

You will learn how to convert OST data to EML manually using this method. As everyone is aware, there is no direct way to manually move OST to EML. to give you a practical solution that makes it easy for you to transfer your OST files to EML format by following these four easy steps. Let’s go over the process in more detail.

Step 1: Export OST to PST:

  1. First, open Microsoft Outlook on the computer connected to the Exchange server.
  2. Go to File > Open & Export > Import/Export.
  3. Then, choose Export to a file > Outlook Data File (.pst).
  4. Select the folders you want to export and choose a destination to save the PST file.

Step 2: Import PST to Gmail:

  1. Now, access your Gmail account and go to Settings > Accounts > Import.
  2. Under Import Mail and Contacts, click Import Mail and Contacts.
  3. Choose Outlook.com or Windows Live Hotmail as the option, and click Continue.
  4. Sign in to your Outlook account and grant Gmail access to import the PST file.

Step 3: Add Gmail to Thunderbird:

  1. After that, open Mozilla Thunderbird and go to Tools > Account Settings.
  2. Click Add Account and select Email.
  3. Here, enter your Gmail account details and click Continue.

Step 4: Export EML from Thunderbird:

  1. In Thunderbird, select the emails you want to convert to EML format (use Ctrl+A to select all).
  2. After all, right-click on the selected emails and choose Save as > File.
  3. Finally, choose EML as the format and select the destination to save the EML files.

You can convert Outlook OST files to EML format by following the above instructions. However, be sure to review the limitations listed in the section below before utilizing the manual method.

Drawbacks of the Manual Method

  • The manual method requires technical expertise to transfer OST to EML.
  • The process of converting OST data to EML is time-consuming and intricate.
  • When you have a lot of data to convert, it takes too much time and effort because you can only move a limited amount of data at once.
  • Your data can be lost or corrupted by a small mistake.

If you have large amounts of data and want to transfer OST to EML format without any risk. You can use the friendly method that allows you to convert multiple OST files to EML in bulk without technical knowledge. Now, let’s move toward the direct method to convert OST files to EML.

Method 2: How to Convert OST to EML in Bulk?

In this section, we will learn the quick and trustworthy solution to convert numerous OST files into EML at the same time. Aryson OST to PST Converter is a reliable solution to convert all items of OST files, including Emails, attachments, tasks, contacts, calendars, notes, etc. This software supports all the OST files of Outlook, like 2010, 2013, 2016, and other versions. Moreover, it provides various features like a date filter, the ability to remove duplicates, save attachments separately, save in the same folder, and many others. It can also convert OST files in many other file formats, such as PST, EML, MBOX, CSV, MSG, etc., and it can import your OST data in different email clients, like Office 365, thunderbird, iCloud, Yahoo, etc. Now, let’s explore the steps to convert OST files to EML with attachments.

Stepwise Guide to Convert OST to EML

  1. First, download and install the OST to PST Converter tool on your PC.
  2. Then, choose the OST files to browse from the Select Files or Select Folder buttons.
  3. Now, preview the data of the OST files from the tree-structure list, and then click Next.
  4. In the next step, select the EML format from the drop-down list.
  5. After that, choose the saving destination from the Path to Save button.
  6. Finally, click on the Convert button to start the process of saving the OST files to EML format.

Note: You can download and run this tool on any Windows version without any cost.

Conclusion

In the discussion that followed, we covered two different effective techniques to convert OST to EML format. You can now select any approach that works best for you. The manual method has some limitations and can be used if you have limited data. On the other hand, you must use the automated solution to convert multiple OST files to EML at once without difficulty if you have a large amount of data and want to export Outlook OST files to EML quickly.

About The Author:

Adom Smith is a DataRecoveryHelp Technology Writer. He is a technology enthusiast with over 3 years of experience in Data Recovery, IoT, Artificial Intelligence, and Robotics. He enjoys researching and sharing DIY solutions as well as tips and tricks for resolving Windows technical issues.

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