Email MigrationThunderbird

How to Import OLM File to Thunderbird?

“Hello! I worked in an organization where I used Mac Outlook for email management. There are some crucial emails in my Mac Outlook mailbox So, I export them to OLM file  for further use. Recently, I switched my job and in new job I use Thunderbird email client. Now, I need to access these previous data that is exported from Mac Outlook to OLM file. There is a problem that I do not know how to import OLM file to Thunderbird. Can anyone suggest me any reliable solution to upload OLM files to Thunderbird?”

There are multiple users who are looking for a solution to open OLM in Thunderbird. If you are also one of them then you have landed at the right place. In this article, we are going to discuss how to import OLM file to thunderbird using an instant solution.

Table of Content

  1. Benefits of Importing OLM Files to Thunderbird
  2. Import OLM to Thunderbird in Bulk using Xtraxtor OLM Converter
  3. Steps to Upload OLM File to Thunderbird
  4. Key Features of Xtraxtor OLM to Thunderbird Converter
  5. FAQs
  6. Conclusion

OLM stands for Outlook for Mac. It is a file format used by Microsoft Outlook. OLM files contain email messages, contacts, calendar events, tasks, and other data. Outlook for Mac is widely used by macOS users to manage their email communication, schedule appointments, and stay organized.

On the other hand, Thunderbird is a free, open-source email client developed by Mozilla. It is designed to provide users with a powerful and customizable platform for managing their email accounts. Thunderbird supports various email protocols, including IMAP, POP3, and SMTP, allowing users to access and manage their email from different providers. Thunderbird offers features such as a unified inbox, advanced search capabilities, add-ons for customization, integrated calendar and task management, and strong emphasis on user privacy and security

Reasons to Import OLM File to Thunderbird

Importing OLM (Outlook for Mac) files into Thunderbird, the popular email client, can offer several compelling reasons for users to make the switch. Here are some key reasons why individuals might choose to import OLM files to Thunderbird:

  • Cross-Platform Compatibility: Thunderbird is available on multiple platforms, including Windows, macOS, and Linux. Importing OLM files to Thunderbird ensures that your email data remains accessible regardless of the operating system you’re using.
  • Cost Savings: Thunderbird is an open-source and free email client, making it a cost-effective alternative to proprietary email clients. Importing OLM files to Thunderbird allows users to avoid subscription fees associated with some email clients.
  • Customizability and Extensions: Thunderbird offers a wide range of add-ons and extensions that allow users to customize their email experience. This includes themes, enhanced productivity tools, and integration with third-party services.
  • Privacy and Security: Thunderbird places a strong emphasis on user privacy and data security. Its built-in features such as phishing protection, advanced spam filters, and end-to-end encryption contribute to a safer email experience.
  • Unified Inbox: Thunderbird enables users to manage multiple email accounts within a unified inbox. Importing OLM files to Thunderbird allows users to consolidate their email communication from different accounts.
  • Open-Source Community: Thunderbird benefits from an active open-source community that continually develops and updates the software, ensuring stability, security, and feature enhancements.

Instant Solution to Upload OLM Files to Thunderbird

Download and run Xtraxtor OLM Converter and import OLM file to Thunderbird in a seamless manner. The software can import multiple OLM files to Thunderbird at once. It preserves 100% data integrity during the process. The software is designed with advanced algorithms and a simplified interface. As a result, any novice user can easily complete the importing process without any external help. The best thing about this utility is that a free version is available to check its work efficiency and accuracy before purchasing its licensed version.


Moreover, the tool can also import OLM to Gmail, Yahoo Mail, Zoho Mail, Windows 10 Mail, Hotmail, and many more email platforms. It maintains the original structure of file throughout the process. There are various advanced filter options to import selected emails from OLM to Thunderbird.

Step-by-Step Guide to Import OLM File to Thunderbird

Step 1. Launch this software on your Windows PC.

Step 2. Now, click on Open >> Email Data Files >> OLM File >> Choose File or Folder.

Import OLM to Thunderbird

Step 3. Browse and add folder having OLM File.

Upload OLM files to Thunderbird

Step 4. The software loads all emails from OLM file to view them before importing.

Step 4. After that, click on Export and Select Thunderbird from the given options.

Import OLM file to Thunderbird

Step 5. Choose folders that you want to upload from OLM to Thunderbird.

Save OLM file in Thunderbird

Step 6. Apply the filters to export selected emails.

Step 7. Now, software will automatically detect the location where Thunderbird mailbox data is stored and then press Save button to begin the importing process.

Import OLM file into Thunderbird

 Hence, you can easily import OLM file to Thunderbird in a few simple clicks.

Highlighted Features of OLM to Thunderbird Converter

  • Direct Importing: This software can directly upload OLM files to Thunderbird. You do not need to convert it into Thunderbird compatible format or no need to install any external applications to perform importing process.
  • Safe and Secure Solution: It is completely safe and secure solution that does not lose any single bit of data during the process. It can import all metadata properties and other key attributes with OLM emails.
  • Batch Mode: The software has dual mode to import OLM files. You can import OLM file to Thunderbird in bulk. Hence, it saves your time and effort to import unlimited OLM files.
  • Export OLM to Various Format: There are various saving options to export OLM files. With this utility, you can easily convert OLM to PST, PDF, EML, MBOX, TXT, CSV, ICS, vCard, HTML, etc.
  • Advanced Filter Options: Sometimes users do not want to import all emails from OLM files then this application help you in selective importing process. It enables you to import emails based on Date Range, Sender, Recipient, etc.
  • Preserves Folder Hierarchy: Users are always concerned about the structure of files during the process. It is able to maintain the folder hierarchy and the structure of OLM file during the process.
  • Import OLM to Various Platforms: The tool not only import OLM file to Thunderbird but also import OLM to Yahoo Mail, Gmail, Office 365, Zoho Mail, Hotmail, and many other email accounts.
  • Windows Compatibility: It is compatible with all latest and old versions of Windows OS. You can run this utility on Win 11, 10, 8, Vista, XP, and all below editions.

Frequently Asked Questions

Q 1. I have lot of OLM files. Can I import all files at once with this application?

Ans- Yes, The tool has a batch mode that allows you to import unlimited files in single go.

Q 2. Is it possible to import OLM contacts to Gmail with this tool?

Ans- Yes, you can easily import OLM contacts to Gmail, and many other platforms.

Q 3. I use Windows 11 on my device. Can I run this application on my system?

Ans- Yes, it is fully compatible with all Windows OS including Win 11.


In this post, we have discussed how to import  OLM file to Thunderbird. With the above-suggested tool, you can directly upload OLM files to Thunderbird with full accuracy. It is expert recommended tool that import OLM files in a few seconds. Download its free version and if you have any doubts related to product then contact the support team that is available 24*7.

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