How to Migrate OLM to Office 365 – Step-by-Step Guide

  • Written By  

  • Updated on June 27th, 2025

5/5 - (8 votes)

Are you an individual user making a move to a new platform or perhaps an IT admin facilitating email migrations and now you are looking to migrate OLM to Office 365? Transferring OLM files to Microsoft 365 is only possible with the right tools as there are challenges involved. On this blog, we will go through the migration process and use the powerful Mydigisoft OLM Converter Tool.

What Does It Mean To Migrate OLM To Office 365?

All users of Outlook for Mac keep their information in .olm files which basically includes emails, contacts, calendars, tasks etc. For enhanced collaboration and accessibility of information, Office 365 (now Microsoft 365) has cloud storage systems for all data. In order to safely and precisely access your old Mac Outlook data in Microsoft’s digital ecosystem, you need to do an OLM to Office 365 migration.

Benefits of Migrating OLM Files to Office 365

  • Access email, calendar, and contacts from any device or location
  • Enhanced online security and backup options
  • Use on Windows PCs, Mac computers, or mobile devices
  • Collaboration via Teams or SharePoint is effortless  

Importing OLM Files to Office 365 Using the Manual Method (Not Recommended)

  • In theory, it is possible to use manual methods. However, they are far from reliable:  
  • IMAP workaround – Create a Gmail account, import the OLM file then sync with Office 365.  
  • Export using PST – Use Outlook to convert files and upload via Windows.  

Downsides:  

  • Complicated processes that take a significant amount of time  
  • High risk of losing important data  
  • No support for calendars, contacts and other related data  
  • Not suitable for bulk or enterprise level migrations  

Mydigisoft OLM Converter Tool Offers Best Solution

The Mydigisoft OLM Converter Tool mitigates the risks associated with hands-on techniques by enabling a simple direct process of migrating OLM files into Office 365 without compromising data accuracy.

Primary Characteristics of the Tool:

  • Direct migration to Office 365 accounts  
  • Supports emails, contacts, calendars, tasks, and notes  
  • Keeps original folder structure intact  
  • Bulk file migration available  
  • Advanced filters for specific date ranges or folders  
  • Auth-based login security for Microsoft 365  

Steps To Use Mydigisoft Tool OLM To Office 365 Migration  

Step01- Download and open Mydigisoft OLM Converter Tool.  

Step02- Select Add File button to browse for your OLM files.

Step03- Pick Office 365 as your export destination. 

Step04- Enter your credentials for Office 365 in a secured way.  

Step05- Convert after applying optional filters (if any). 

Step06- You have successfully migrated your OLM file to the office account!! 👏

Ideal Users Of This tool:  

  • IT Specialists handling records exchange at an organizational level
  • Email data managers integrating Mac styled information into Windows frameworks
  • People moving from macOS systems to Office 365.

Final Verdict 

For those planning on migrating from OLM to office 365, steering clear of long manual processes is recommended along with reducing the chance of errors while applying some automation via Mygidgsoft will speed things along without compromising security. Be it a single or bulk data transfer this solution targets fast paced workplaces where mailbox data needs are high whilst ensuring seamless access through MS-Office 365 post-migration.

FAQs – Migrate OLM to Office 365

Q1. Can I migrate OLM files to Office 365 directly?
Not manually. A third-party tool like Mydigisoft’s is necessary.

Q2. Does the tool require admin access to Office 365?
Only user-level credentials with access permission.

Q3. Is it possible to migrate multiple OLM files at once?
Yes, the tool supports batch migration.

Q4. Will my calendar and contacts also be imported?
Yes, all mailbox components are supported.

Q5. Is my data secure during migration?
Yes, the tool uses encrypted OAuth login to protect your credentials and data.

Q6. Can I migrate selected emails or folders?
Absolutely, advanced filters let you customize what to migrate.

Q7. Is it compatible with Outlook for Mac 2019 and earlier?
Yes, all OLM files from Mac Outlook 2011, 2016, and 2019 are supported.

Q8. Do I need technical knowledge to use this tool?
No, it’s designed for both technical and non-technical users.

About The Author:

Related Post