How to Import an OLM File into Outlook 365?

When you export mailbox data, such as emails, contacts, calendar events, etc. from your Outlook for Mac account, it gets stored in an OLM file. However, you cannot directly import the OLM file into Outlook 365. This is because the OLM file format is not supported by Outlook 365. Hence, to import this file into Outlook for Windows, you need to take the help of a specialized OLM to PST converter tool. In this article, we will be sharing the detailed process to import OLM file into Outlook 365 using an OLM to PST converter tool. We will also be explaining a workaround that can help transferring emails from OLM file to Outlook. Let’s read further to learn more about these methods.

Import OLM File into Outlook 365 using OLM to PST Converter Tool

To effortlessly import OLM file into Outlook 365 on a Windows PC, you can use a specialized OLM to PST converter tool, such as Stellar Converter for OLM. This tool has advanced algorithms that eliminate any risk of data loss while importing OLM file into Outlook. It also ensures that the data imported into Outlook 365 has the same folder hierarchy as in the source OLM file. It also offers a preview feature to check the integrity of mailbox items, such as emails, attachments, contacts, calendars, and more.

Furthermore, this tool allows to save the OLM file items in various file formats, such as PST, PDF, RTF, HTML, MSG, etc. This tool can convert or transfer OLM files created in Outlook for Mac 2021, 2019, 2016, and earlier versions.

To import OLM file into Outlook 365, download and install the Stellar Converter for OLM on your Windows PC and then follow the steps given below:

Note: Transfer the OLM file from your Mac to your Windows PC where you’ve installed the tool.

• Launch Stellar Converter for OLM.
• The Select OLM Mailbox window will appear. Click on the Browse button to select the OLM file.

• Once you have selected the OLM file, click on Convert. The tool will start scanning the selected OLM file.
• Once the tool has completed scanning the OLM file, you will see a list of all the mailbox items in a tree view structure. Select any mailbox item to see its preview.
• After previewing the mailbox items, click on Save Converted Mailbox in the ribbon.
• The Save File window will appear.
• Select the Export to Existing Outlook Profile option and click Next.

• The Select Outlook Profile and PST window will appear on the screen.
• Select the Profile from the given list and click Save.

• The tool will begin exporting the OLM file data to the selected Outlook profile. Once completed, the Conversion Completed dialog box will appear. Click OK to end the process.

Note: If you want to save the OLM file data in PST file format, you can select the Save as PST option in the Save File window.

Another Way to Import OLM File into Outlook 365

If you want to transfer a few emails from your OLM file to your Outlook 365 profile, you can import the OLM file into Outlook for Mac, save the required emails in eml file format, and then drag and drop them in Outlook. Here’s the stepwise process:

Step 1: Switch to Legacy Outlook

The new Outlook for Mac doesn’t support the importing of OLM files. You need to switch to the Legacy Outlook. For this,

• Launch Outlook for Mac app.
• Click on Help > Revert to Legacy Outlook.

The app will close and automatically restart to load the legacy Outlook.

Step 2: Import the OLM file into Outlook for Mac

Follow the steps given below to import the OLM file into Outlook for Mac:

• Click on File and click on Import.

• The Import wizard will open.
• Select the Outlook for Mac archive file (.olm) option. Click Continue.

• Select the OLM file and click on Import.

• It will begin importing the selected OLM file into Outlook for Mac.

• Click on Finish to complete the process.

Step 3: Save OLM File Emails in EML Format

Now, follow the steps below to save the emails in OLM file to EML format:

• Select the emails you want to import into Outlook 365.
• Click on File > Save as.

• Give the file a name, select the location where you want to save the file and click on Save.

The required emails will be saved as EML files.

Step 4: Drag and Drop the EML Files into Outlook 365

Once you have saved the OLM file emails in EML format, move the EML files to the Windows PC where you have configured Outlook 365 account. Then, drag and drop them into your Outlook 365 account.

Limitations of the Above Method

The above method has some limitations, such as:

• The process is lengthy and complex as it requires you to perform a number of steps.
• New Outlook for Mac doesn’t have the Import/Export feature. You need to switch to the Legacy Outlook to import the OLM file.
• This method is suitable for transferring only a few emails.

Conclusion

Outlook 365 doesn’t support the OLM file format. Hence, there is no direct way to import an OLM file into Outlook 365. The best way is to use Stellar Converter for OLM – an advanced OLM to PST converter tool that allows you to import OLM files into Outlook 365 account without any hassle. This tool also ensures that the mailbox data is transferred with 100% accuracy and the folder structure and hierarchy intact. Additionally, it can save the OLM file data in various file formats, such as PST, EML, PDF, RTF, etc.