Learn How to Convert Outlook OST to EML File on Mac OS with Quick Guide?

Sarabjeet Kaur | how to ost software technology | 4 minutes read | Last updated on September 15th, 2025,
How to Convert Outlook OST to EML File on Mac OS

If you’re thinking to convert Outlook OST to EML file on Mac OS, you are in the correct place. There are multiple reasons why someone might wish to export an OST file to an EML file for macOS, including the need to access the email data on different mail clients or backup purposes. MacMister Mac OST Converter is an exceptional and outstanding software to facilitate this conversion successfully and precisely. Here’s how one can perform it and why it’s worth considering.

Why Convert Outlook OST to EML for Mac?

Conversion to Other Email Client Apps: Since EML is a universal file type, transferring your database to another email client is made simpler if you are switching Microsoft Outlook or any other platform that utilizes Offline OST files.

Access to Emails on Various Platforms: Mozilla Thunderbird, Apple Mail, Outlook Express, Eudora, Mac Mail, Windows Mail, and other email clients can effortlessly open EML files that are a widely accepted file format. You can see your mails on different platforms or devices by exporting from OST to EML.

Better Management: EMLx files are normally smaller and more organized that makes it easier to manage a large size of email messages from your OST mailbox. One can save them as individual files, making it easier to search for and access specific email.

Email Backup: EML or EMLx files offer a direct and simple method of backing up crucial mails from your Exchange OST file. Emails in this file type are perfect for long-term preservation because they are simple to examine and preserve.

Easy and Simple Sharing– After moving emails from OST to EML, one can also share their mailbox data items effortlessly without worrying about the reliability of the output file.

How to Convert Outlook OST to EML File on Mac OS? – With an Expert & Reliable way

Here, one can successfully migrate OST files to EMLx files on macOS through the utilization of OST to EML Converter for Mac. The all-in-one tool can perfectly convert selective or bulk Outlook OST files into EML files without MS Outlook in a single attempt. With the software, a user can easily convert OST files into more than ten file formats such as PST, PDF, MBOX, ICS, CSV, MSG, vCard, Outlook.com, Gmail, Yahoo, Thunderbird, IMAP, DOC, TXT, Office 365, and more. Also, the tool offers various advanced options for precise and best conversion process. Users can also download free demo edition of the tool on their device.

Steps to Convert OST to EML on Mac Using Mac OST to EML Tool

The Mac OST to EMLx Converter is a trusted solution to flawlessly convert OST mails to EML format. Follow these simple and quick conversion steps to convert your Offline OST files into EML format:

  1. First, visit the official website and download the Mac OST to EML Tool on your device.
  2. Press on the “Add Files” or Add Folder tab in the app to load your Mac OST file.
  3. In the tool, select EML as your desired saving file type.
  4. Choose a particular folder location where you wish to save the exported data.
  5. Once everything is set, hit on the Export tab.
  6. After the conversion process is finished, go to the folder where the resulting EML files are saved.

Traits of Mac OST to EML Conversion Tool

Batch Migration: OST Converter for Mac Tool enables you to import multiple OST files to EML files at the same time, saving time as well as effort.

Keep Email Database: The software permits that all metadata, including attachments, sender details, and subject lines, are maintained throughout the migration.

Easy-to-Use GUI Interface: It’s designed with a user-friendly and simple graphical user interface that makes it simple for both novices and technical users to move OST files.

No Outlook Compulsory: You do not require to have Outlook installed on your Mac Operating System to use Mac OST to EML Migration Tool, making it a perfect way for users without MS Outlook access.

Fast Export Procedure: The software gives a speedy and quick method to transfer your Outlook OST files into EML format without compromising on the quality of the migrated data.

Safety & Data Integrity: It keeps the integrity of your Exchange OST files, ensuring that your mails, calendars, attachments, contacts, notes, and other mailbox data items are transferred safely.

Final Words

The article provides you with tips on how to convert Outlook OST to EML file on Mac device. Since the internet fails to provide a manual option for it. You must use a third-party application to carry out the same. Our opinion is that there is a reputable and reliable program that not only safely transforms your OST files in mass but also protects the information within them. The tool delivers an amazing outcome and works effortlessly.