Cover image for Outlook for Mac. How to convert OLM to PST?

Outlook for Mac. How to convert OLM to PST?

artyomgazizyanov profile image Artemiy Gazizyanov Updated on ・2 min read


On the one hand, we have Mac OS as the second most popular operating system. On the other hand, we have Outlook as one of the most popular personal information managers in the world. So, it was a question of time when we were able to use all functions of Outlook on Mac.

Now we have Outlook for Mac OS provided by Microsoft Office. This application is a full-weight version of Outlook for Windows, but we can use it on Mac OS. There is only one difference. It is a storage file format. The version for Mac OS uses OML against PST on Windows.

So one of the most prevalent problems to solve is converting from OML files to PST. That can be done for many reasons: to send data on a Windows machine for some processing or to save data according to the saving data.

Save and protect your data

One of the cases that users of Mac OS encounter are errors that occur when saving data and their further damage.
It can be caused by compatibility between MAC OS and Outlook for Mac. When these two applications don’t synchronize as well. Then Outlook can give various error messages or exceptions like:
“Microsoft Outlook must be closed because an error occurred. Any unsaved work may be lost.”
“Sync pending for this folder”
“attachments exceed the limit allowed please remove attachments, sync error code 17193”

Do you save your outlook data and how do you do it?
Share your comments below! 👇👇👇

You can go two ways:
1. You can try to fix them to handle the compatibility issues doing: continuous updating to the latest updates or to export all the Outlook data in the OLM files using the Export option.
2. Use Aspose.Email library to convert OML files to PST to save data to protect it or transfer.


string dst = "SampleOLM.olm";

//Initialize Olm storage
using (OlmStorage storage = new OlmStorage(dst))
    //Initialize Pst storage
    using (PersonalStorage pst = PersonalStorage.Create("output.pst", FileFormatVersion.Unicode))
        //Create only Inbox folder as an example
        FolderInfo pstFolder = pst.CreatePredefinedFolder("Inbox", StandardIpmFolder.Inbox);

        //Go through folders in the OLM storage
        foreach (OlmFolder folder in storage.FolderHierarchy)
            //Check is this folder empty
            if (folder.HasMessages)
                 // extract messages from folder
                 foreach (MapiMessage msg in storage.EnumerateMessages(folder))
                     //Add message to the pst storage
                     Console.WriteLine("Subject: " + msg.Subject);

This approach is secure because you don’t have to send your data to a third-party server; all processes take place on your machine.
This library saves the integrity of the whole OLM file. Also, PST has a split feature that can allow users to divide a large PST file into smaller-sized PST files.

After successful converting, the PST file can be saved on your machine or can be migrated to the Outlook for Windows or to the other applications which can support this file.

Do you often face similar problems and how do you solve them?
Leave your comments below. 👇👇👇


Editor guide
kellylasner profile image

There are several ways for OLM to PST Conversion Online. The free way is not successful for the large Mac Outlook files. For large Mac Outlook Files, you have to go for paid software. As far as I distinguish OLM to PST File Exporter is one of the best application to export OLM files to Outlook PST file format. This keen App user can easily import multiple OLM Files in PST format in just a couple of seconds.

Download now:- sametools.com/convert/olm/

ralphmiller profile image

You can convert Outlook for Mac OLM file to PST file using vMail OLM to PST Converter while transferring all emails, contacts, calendars, tasks, notes, etc.- vsoftware.org/olm-to-pst-converter...

mithileshkrseo profile image

Aryson OLM to PST Converter is also developed by technical export for exporting emails from Outlook for Mac (OLM) to Outlook for Windows (PST).

russlopez01 profile image

Use this third party tool OLM to PST Converter and OLM to PST Converter file format in just few clicks.

nickfury851 profile image

You should use this OLM to PST converter software which can easily export your all olm data into pst format without any hassle. This is an easy to use software that performs safe migration of OLM files to PST file format. With the help of this OLM to PST Converter application you can easily export Outlook OLM to PST Files. It provide an enhanced and reliable easy to use user friendly interface which allow the all users both technical or non technical can easily use this software without have any technical skill. Use it free trial version to understand it features and functions.

Visit here:- recoverfilesdata.com/olm-pst-conve...

joegibson7751 profile image

This OLM to PST converter is 100% safe and secure which maintain your original data during conversion. Technical or non technical both can easily use this software without any specific knowledge. It has brilliant and enhanced user friendly interface to make this whole process fast and simple.

Use it free trial version enables you to convert OLM emails to pst files and will show you the converted emails in preview items. This can support all version of ms outlook such as 97, 98, 2000, 2002, 2003, 2007, 2010, 2013, 2016 and 2019.

Read more:- filesrepairtool.com/olm-to-pst-con...

russlopez01 profile image

You can try this OLM to PST Converter tool and easily Convert your Mac OLM file to PST file format.

jasondarulo profile image
jason darulo

You should use this brilliant olm to pst converter software which can retrieves all mailbox data from OLM files of Outlook in Mac and exports them to Outlook PST file.

This can maintains original formatting, properties and structure of Outlook for Mac emails in the new mailbox. After scanning process, It save the scanned file which can be used in future for rescan the same file for preventing time consumption.

All users both technical or non technical can easily use this software easily use this reliable software. Download it free demo version and check it features and function. It allow the users to see the preview of convertible mails and save 25 items per folder.

Download link:- recoverfilesdownload.com/convert-o...