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Written By Suman Rawat
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Updated on June 6th, 2025
Summary: Microsoft Outlook is widely used across both Windows and Mac platforms. While Windows Outlook stores data in PST and MSG formats. Besides that, the Mac version uses the OLM file format. However, OLM files are not supported by Windows Outlook directly. So what happens when you switch from Mac to Windows and want to access your old emails? That’s why converting OLM to MSG is required. In this blog, we will show you how to convert OLM to MSG with a manual or a professional OLM Converter Tool. These techniques offer you a hassle-free solution without data loss.
Real-Time Scenario
Just take an example to understand when and why this conversion is required:
Situation: John used Outlook on his MacBook for 3 years. He recently switched to a Windows PC for work, but he needs to access old client emails saved in OLM format.
Problem Faced: Windows Outlook doesn’t support OLM files.
Solution We Provided: John converts his OLM file to MSG format, which allows him to open individual emails in Outlook for Windows.
There are two primary ways to convert your OLM to MSG:
Unfortunately, Outlook does not offer a built-in option to export OLM files to MSG directly. To perform the task manually, simply follow these instructions:
While it’s possible to convert OLM File into MSG file manually, the process has several drawbacks, such as:
However, to avoid these limitations, you can use the alternative method mentioned below.
The most reliable and time-saving method is using professional OLM Converter Software. This tool is specifically designed with an advanced algorithm to handle the conversion securely. It allows users to convert multiple OLM files at once while keeping the original email structure, formatting, and attachments fully intact. Unlike manual methods, it minimizes the risk of data loss or errors and doesn’t require Outlook to be installed.
Furthermore, this tool has a simple interface. So that non-tech users can easily perform it without any technical skills. With this utility, you can convert OLM to vCard Contacts on Mac and other formats. The Demo version of this tool is available to save 50 emails per folder and analyze its features.
The professional Mac OLM Converter Tool has several advanced features that help to easily convert OLM to MSG with attachments. Some of the key reasons are:
In this technical blog post, we explored the top 2 methods to convert OLM to MSG. If you have small data to convert, you can use the manual (Free) technique. Otherwise, a professional tool is the best choice if you migrate bulk OLM files. This tool saves time, reduces cost, and ensures all your emails are migrated safely.
Ans: Yes, use the OLM Converter Tool to convert multiple OLM files to MSG at once without data loss. This tool supports bulk conversion, so you can convert multiple files in one go.
Ans: Using a professional Mac OLM Converter is the fastest and most reliable method to convert OLM to MSG.
Ans: Absolutely. The MacGater OLM Converter software keeps all formatting, metadata, and attachments intact without minimal disruption.
About The Author:
Suman Rawat is a technical content writer and expert in the fields of email migration, data recovery, and email backup. Her passion for helping people has led her to resolve many user queries related to data conversion and cloud backup.