Stellar OLM to PST Converter – Product Review

olm-to-pst-conversionBeing available for both Windows and Macintosh platforms, MS Outlook has been providing secure emailing services to its consumers across the globe for over a decade. Outlook data file (i.e. Outlook.pst) created on Windows platform (Outlook 2003 or later) can be imported to Outlook for Mac (2011). In contrast, MS Outlook for Windows platform fails to read/write access the Outlook for Mac data file (i.e. the OLM file). This gives rise to a need to convert OLM file to PST file, in case you wish to migrate your Outlook mailbox from Mac to Windows. Alternatively, you might be looking for mailbox migration after installing Windows on your Mac.

Introduction – Stellar OLM to PST Converter

Stellar OLM to PST Converter is a commercial email migration tool that facilitates converting Outlook for Mac data file (*.OLM) to its corresponding Outlook data file (*.PST) without modifying the contents of the folders in the mailbox. The PST file can be imported into Outlook after mailbox conversion is finished successfully.

What it Does: Converts Outlook for Mac (OLM) files to MS Outlook data files.

Availability: Downloadable Exe (Executable File)

Download Size: 8.4 MB

Downloaded From here.

Installation: Installation time is under 30 seconds and consumes about 55 MB of hard disk space.


  • Single License
  • Technician License


The need for a user-friendly and easy to use platform has always been on top, no matter whether you use the securest platform. In fact, you cannot compromise with the ease and comfort over features like data security, which might drag you into your comfort zone again. In such a state, you look for an efficient way to migrate all your belongings back with you; or else, you find a way through it.


Stellar OLM to PST Converter enables efficient conversion of OLM files into their corresponding PST files keeping mailbox data intact. For ease of conversion, the software requires you go through multiple stages, such as locating/searching the OLM file, scanning the OLM file for its contents, watch preview of the mailbox contents, and then provides multiple formats to save the converted mailbox. In the mean time, you at each step interact with the software through a user-friendly GUI (Graphical User Interface).

Before the conversion to start, you have to copy or move the OLM file created on Mac-based computer to a Windows machine. Once the mailbox transfer is done, run Stellar OLM to PST Converter and begin with the conversion process systematically.

System Requirements

In addition to the efficiency of the scan engine, the software performance more or less relies on system configuration. In other words, the software performance will be considerably high on a computer with upgraded hardware configuration as compared that on a computer running on an obsolete set of hardware. Well, this mailbox migration tool does not require you to have a hardware rich computer, as it performs well on the following system configuration:

  • Processor: Intel Pentium
  • RAM: 1GB (2GB Recommended)
  • Operating System: Windows 8/ Windows 7/ Windows Vista/ Windows XP
  • Disk Space: 55MB

In case your computer is hardware rich, this mailbox conversion tool is going to perform considerably well for you. However, if you are still living with your very first computer, do not worry, as this software will work for you indeed.


As mentioned above, a big share of the performance of this mailbox conversion tool relies on the system configuration, the size of the mailbox also is one of the components upon with this the processing of this mailbox conversion tool depends. In other words, the size of the mailbox you are going to convert is one of the key factors affecting software performance considerably.

Once the Outlook for Mac data file (*.OLM) is chosen, the next steps is to convert the selected mailbox, which remains in RAM until you proceed to save the converted mailbox in one of the available output formats (PST, MSG, and EML). The time elapsed in mailbox conversion may vary from a few minutes to a few hours. In the mean time, you can preview the emails stored in mailbox.


Stellar OLM to PST Converter enables you preview the emails (individually) stored in different folders in the mailbox after conversion, but before saving the converted mailbox in one of the available formats. The software also features previewing the attachments (in its registered versions). The preview window is split into three panes – left, upper right, and bottom right. Left pane displays the folder hierarchy that also remains intact in the PST file after conversion takes place. Selecting a folder in the left pane reveals its contents in the upper right pane, wherein you can preview these emails individually in the bottom right panes.


Stellar OLM to PST Converter is a fully-fledged mailbox converter that features efficient conversion of OLM files into PST files that can be imported into Outlook client and start using with. Some key features of this mailbox converter are mentioned below:

  • Efficient and secure mailbox conversion
  • Search for OLM files on computer
  • Support for MS Outlook 2013/ 2010/ 2007
  • Save converted mailbox in PST/ MSG/ EML file formats
  • Preview emails, contacts, calendar, notes, and more


Saving the converted mailbox (i.e. the Outlook importable PST file) is the final step of successful mailbox conversion, which requires clicking the Save button on the toolbar. Based on requirements, you can opt for any of the PST, MSG, and EML file format.

Save as PST File

Choosing PST as the save format provides you with two options, i.e.

  • Save as a new Outlook PST file
  • Save each mailbox as individual PST
    This requires selecting a location on the computer. Click Browse and proceed.
  • Save all mailboxes in a single PST
    This also requires selecting a location on the computer. Click Browse and proceed.
  • Append data into existing profile/PST file
    This option requires selecting existing Outlook profile or PST file to import converted data.

Save as MSG or EML File

Choosing any of the MSG and EML as the save option results in saving emails in each folder in the mailbox as individual files.


  • User-friendly interface
  • Trouble-free usage
  • Multiple save options
  • Supports Outlook 2013/2010/2007 (64 & 32-bit)


  • It is a paid utility.

Verdict: Stellar OLM to PST Converter is a good product for Mac users wishing to migrate from their Outlook for Mac profiles to MS Outlook accounts. It gives flawless and efficient performance while running on computers with basic hardware configuration. I would say the tool is less resource consuming, smooth in its working and efficient. The folder hierarchy as well as the contents in each folder in the mailbox remains intact.

Convert Mac Outlook file OLM to PST Click Here