How to Import OLM Files into Office 365 Account?

Are you switching from Outlook for Mac to Office 365 and wondering how to bring all your emails, contacts, and calendars with you? OLM files, which store mailbox data from Outlook for Mac, are not directly compatible with Office 365. Unfortunately, there’s no built-in option to import OLM files straight into your Office 365 mailbox. But don’t worry—there are reliable ways to get the job done without losing your valuable data. In this blog, we’ll explain why users need to import OLM to Office 365, cover manual and professional methods, and help you choose the best approach for a smooth migration.

Why Do Users Want to Import OLM Files into Office 365?

There are several practical reasons why individuals and businesses move their OLM data to Office 365:

Access Anywhere, Anytime: Office 365 is cloud-based, so you can access your emails from any device, anywhere in the world.

Better Collaboration: Office 365 offers tools like Teams, OneDrive, and SharePoint for seamless collaboration.

Data Security: It provides advanced security features and regular backups, reducing the risk of data loss.

Platform Independence: Migrating OLM files lets Mac users switch to Windows or web-based Outlook without compatibility issues.

Centralized Management: Businesses benefit from centralized mailbox management for multiple users.

How to Open OLM Files in Office 365 Manually?

Unfortunately, there is no direct manual method to import an OLM file into Office 365. However, some users attempt an indirect, multi-step workaround using IMAP configuration. Here’s a rough outline:

1. Add a Gmail or IMAP Account to Outlook for Mac: Configure a Gmail or IMAP account in your Mac Outlook and drag your OLM mailbox folders into the IMAP account.

2. Sync the IMAP Account: Allow Outlook to sync the data to the IMAP server.

3. Configure the Same IMAP Account in Outlook on Windows: Open Outlook on your Windows PC, add the same IMAP account, and let the synced data appear.

4. Move Data to Office 365: Finally, drag emails from the IMAP folders into your Office 365 mailbox.

This manual method is complicated, time-consuming, and risky if you have a large mailbox or unstable internet connection. Plus, it does not guarantee a 100% accurate transfer of all items like contacts and calendars.

How to Upload OLM Files to Office 365 Directly?

The easiest and safest way to import OLM files into your Office 365 account is to use a professional tool like Advik OLM Converter. This powerful software directly uploads your entire OLM mailbox—including emails, attachments, contacts, and calendar items—into your Office 365 account in just a few clicks.

1. Run the tool and add .olm files.

2. Choose mailbox folders.

3. Select Office 365 as a saving option.

4. Enter Office 365 login details and click Convert.

The software will start importing OLM files to Office 365 account.

Why Choose Advik OLM Converter?

✅ Direct Migration to Office 365

Easily import your entire Outlook for Mac (OLM) mailbox directly into your Office 365 account without any complex manual steps.

✅ Preserves Folder Hierarchy & Metadata

Keeps your original folder structure, read/unread status, attachments, and email properties intact for a smooth and organized migration.

✅ Batch Migration Support

Allows you to upload large or multiple OLM files at once, saving time and effort for individual users and IT admins alike.

✅ Supports All OLM Items

Transfers emails, attachments, contacts, calendars, and other mailbox data to your Office 365 account in one go.

✅ Secure Login with Encryption

Uses secure authentication to log in to your Office 365 account, ensuring your credentials and data stay protected throughout the process.

✅ User-Friendly Interface

Designed with an intuitive, easy-to-navigate interface so even non-technical users can complete the migration in just a few clicks.

✅ No Outlook for Mac Required

Works independently—no need to have Outlook for Mac installed during the migration.

✅ Compatibility with All Mac and Windows OS

Fully supports all major versions of mac and Windows, ensuring smooth performance on any system.

✅ Free Demo Available

Test the tool’s features and performance with a free trial version before upgrading to the full license.

These features make Advik OLM to Office 365 Migration Tool one of the most reliable and convenient solutions for moving your Mac Outlook data to Office 365 seamlessly.

Conclusion

Importing OLM files into Office 365 might seem challenging, but the right approach can make it stress-free. While a manual method is technically possible, it’s tedious and prone to errors. To save time and ensure a secure migration, using a professional solution like Advik OLM Converter is highly recommended. With this tool, you can transfer your entire Outlook for Mac data to Office 365 quickly and without losing a single email.