How to Import OLM File into Outlook 365 Mac? – Comprehensive Tutorial

Sarabjeet Kaur | olm outlook 365 Software Technology | 4 minutes read | Modified on: 09-05-2025
how to Import olm file into outlook 365 mac

Are you a Mac user looking to import OLM file into Outlook 365 Mac environment? If so, you’re in the right place. This blog post will walk you through the process with easy, simple steps.

Although Outlook for Mac and Windows are both products of Microsoft and offer similar functionality, they handle data differently. On Mac, Outlook saves information in OLM format, while the Windows version uses PST. With the growing shift toward cloud-based platforms like Microsoft 365, many users and businesses are choosing to migrate their email data to these modern, centralized systems for better accessibility and management.

Why Import OLM File into Outlook 365 Mac OS?

Many users choose to upload their OLM files into Outlook 365 for a variety of practical reasons. Below are some key advantages that drive this migration:

  • Outlook 365 allows users to handle emails, contacts, calendars, and other data directly through an online interface, reducing dependency on local storage.
  • You can access your mailbox without installing heavy desktop apps.
  • Microsoft 365 includes advanced security tools to protect sensitive data from threats.
  • With just an internet connection, your data is available wherever you’re no need to be tied to a single device.

How Do I Import OLM Files into Outlook 365 on Mac OS? – Through Robust & Trusted Method

One of the most effective way to move OLM data into Outlook 365 is by using an advanced software like CubexSoft OLM Converter for Mac. This utility is designed to simplify the entire process, allowing users to directly transfer contacts, calendars, emails, tasks, journals, and more mailbox data from OLM files to their Outlook 365 account.

Its user-friendly interface ensures that even those without technical experience can complete the migration without risking data integrity. The tool is equipped with advanced features to deliver fast, reliable, and precise results making it an excellent choice for both individuals and businesses. Additionally, the software is fully compatible with all versions of macOS, enabling a seamless experience for any Mac user.

Step-by-Step Procedure for How to Import OLM File into Outlook 365 Mac OS

Follow these steps to migrate your Outlook for Mac data into your Outlook 365 account using a reliable Mac OLM to Outlook 365 Migration Tool-

#1- Start by downloading and installing the Mac OLM to Outlook 365 Converter on your Mac system.

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#2- Use the Add Files or Add Folder option to load single OLM files or whole folders holding OLM mailbox database. Hit Next to proceed.

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#3- The software will display all uploaded folders with checkboxes. Select or Deselect items as needed for a selective migration, then press the Next.

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#4- From the available Select Saving Option, choose Office 365 as your final saving format.

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#5- Provide the Email Address and Password for your Outlook 365 account, then hit the Export tab to begin the conversion task.

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#6- A Live Status update will show the progress of the conversion. Once finished, tap on OK to finish the task.

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Key Highlights of the OLM to Outlook 365 Migration Tool for Mac

  • Smooth Direct Upload: Easily migrate OLM files to Outlook 365 App without needing additional software or server configurations.
  • Simple Login-Based Conversion: Just enter your Office 365 email and password to initiate a secure and efficient data export.
  • Bulk Import Capability: Move multiple OLM files to Outlook 365 in one go, without losing or modifying any data.
  • Complete Data Support: Transfers not only emails but also emails, contacts, calendar events, and other related items.
  • Preserves Original Structure: Maintains folder hierarchy and all email metadata before, during, and after migration for an organized outcome.
  • No File Size Restrictions: Import as many OLM files as needed—there’s no upper limit on file size or volume.
  • Retains Email Formatting: Keeps all HTML elements like sender/recipient details, subject lines, inline images, links, and formatting intact.
  • Detailed Migration Log: Generates a post-process report showing item counts, file type, and start/end timestamps for full transparency.
  • Wide macOS Compatibility: Works smoothly across all macOS versions, including macOS Sequoia and newer releases.

Final Words

This write-up covered an efficient and user-friendly way to fix the “how to import OLM file into Outlook 365 Mac OS” query. The robust tool offers a trustworthy, safe and effective method that ensures a smooth migration procedure without any data corruption or loss. For those who want to explore its features before committing, a free trial edition is available. It allows you to export up to 25 items/folder without cost, perfect for evaluating the tool’s performance. It’s recommended to try the demo copy first before buying the license edition for complete access.