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OLM is an abbreviation used for the data file for Outlook for Mac. You can consider it as a counterpart of the OST/PST file of Outlook on Windows. It saves all the data present in Outlook for Mac like messages, attachments, contacts, calendar entries, notes, etc. When you need to change the Mac device or when you need to upgrade the Outlook for Mac to the latest version, you will have to export the OLM data to another file. To carry out this task, users need to know about OLM file location in Mac Outlook.

Where are the Outlook files located on your system?

This article seeks to find where exactly you will find the OLM file location in MAC Outlook. In MS Outlook 2016 for Mac, the usual or default location of Outlook of the email profile folder, and in MS Outlook 2011 for Mac, the default location of OLM files is in the identity folder. Here is the exact location for both versions –

  • If you are using Mac OS X 10.5 and later
    For Outlook Version 2011, you can find your Outlook data files at:

    /Users/<username>/Documents/Microsoft User Data/Office 2011 Identities/Main Identity
  • If you are using Mac OS X 10.13 and 10.14
    For Outlook Version 2016, you can find your Outlook data files at:

    /Users/<username>/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile
  • If you are using macOS 10.15.7 or 10.15.6
    For Outlook version 2019, you can find your Outlook data file at:

    Users/<username>/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile

Try the Kernel OLM Viewer tool to view and read OLM files without Outlook for Mac. Download Free

How to Find a Hidden Outlook Folder?

You have seen in Outlook for Mac, that by default the Outlook 15 Profiles folder is hidden. Here you can unhide them by following steps:

Step 1- Firstly launch Finder and Go to Home.

Step 2- Select View> select Show View Options from the menu.

Step 3- Select the Show Library folder and close View Options.

Now, you can access Outlook 15 Profiles folder.

Steps to Create an OLM File

When you visit the above-mentioned location, you will not find the OLM file there physically. You have to create an OLM file by exporting the data to a saving location. Here’s how the export process will work:

  1. Go to the Tools tab and click the Export option.
  2. Under the Export to Archive (OLM) option, browse the items you want to export and Continue.
  3. Under Save as box, choose the folder where you want to Save the OLM file.
  4. Save the archive file as an OLM file.

After exporting the data, you need to import the OLM file to a new Outlook for Mac to complete the transfer. Follow the steps:

  1. Under the Tools tab, click the Import option.
  2. In the Import option, browse the OLM file which you had created earlier. Click Continue.
  3. After importing the file, you can see the files present in their respective folders. It means you can find the mails in the Mails tab, contacts at the Contacts tab, and notes at the Notes tab.
OLM Viewer- Why, whom to choose, what steps to use?

When you have saved the Outlook files in the OLM file, you want to access its data on a Windows platform. In such a case, you have two options, first is to either free OLM to PST converter or use an OLM viewer tool. If you think of using an OLM Viewer tool, then Kernel OLM Viewer tool is there for your assistance. It reads the OLM file and brings you complete information in a proper mailbox structure.

Let’s see its functional procedure:

  1. Firstly, download and install the Kernel OLM Viewer Software
  2. Now, use any of the two options Open Single File or Open Multiple Files, to add OLM files. And then click on Next.
    Select single or multiple OLM files
  3. Read the information related to the process. Click Finish.
    Read the information
    (Note: In case you are not aware of the OLM file location, please search for the same by using the search button located right beside the Browse button. When the software has listed your available OLM files, choose the one you require)
  4. View your OLM data post-scanning the file. (You’ll find the folders listed under the Folder List on the left pane.) Select a folder from among the list so that you may be able to view the content. Select a particular item and then see it.
    Select folder to view content
More About Kernel OLM Viewer

You can use the Kernel OLM Viewer to generate four different types of File Analysis Reports-

  1. Mail flow density according to date
  2. Mail flow density according to senders
  3. The interaction among the users.

If you want to know how you may generate the report, follow these simple steps:

  • Click on the report name present on the Task Pane.
    Click on the report
  • Then select the folder(s).
  • Click the Analyze when the dialogue box is displayed
    Click the Analyze
  • And here are your File Analysis Reports.
    File Analysis Reports


With the help of this article, you can easily find the OLM file from its default location and get its preview of the Kernel OLM Viewer tool. It is entirely free software that will access the OLM file from the location and show the items’ preview. If you want to access your OLM file in Windows, you can use the software and access all the mailboxes and their data, including emails, attachments, contacts, etc.

Kernel for OLM to PST