Best OLM to PST Converter Tools Compared: Top 3 Options for Mac-to-Windows Migration
Summary: Georgia Lane discusses the challenges of migrating Outlook data from Mac to Windows due to format differences, explaining the need for OLM to PST converters. They review three options: Softaken, DataVare, and TrustVare, highlighting each tool's features such as export formats, preview capabilities, and handling of large OLM files. Softaken offers diverse export formats and recent updates for usability, DataVare focuses on straightforward Mac-to-Windows migration, and TrustVare supports batch processing and advanced filtering. Each tool is independent of Outlook installation and allows selective conversion. Users are encouraged to try demo versions before deciding, considering factors like migration size and format requirements.
A real data-access issue occurs when switching from Outlook for Mac to Outlook for Windows. Outlook for Mac usually exports mailbox data in the OLM format, while Outlook for Windows uses PST for local mailbox storage. Hence, often users who want to migrate emails, contacts, calendars, notes, tasks, and attachments need an OLM to PST converter tool.
There are a few third party utilities available to do this, but they have different features and migration options. Here, we have compared best three OLM to PST converter options, i.e. Softaken OLM to PST Converter, DataVare OLM to PST Converter and TrustVare OLM to PST Converter. The comparison considers features that are important when migrating from Outlook for Mac to Outlook for Windows, such as supported data, preview, selective conversion, large-file handling, ease of use and other export options.
Why should you convert OLM to PST?
OLM and PST are for different Outlook environments. An OLM file can hold Outlook for Mac mailbox information but you can't just open it in Outlook for Windows like a regular PST file.
You can easily migrate Mac Outlook data to Windows Outlook platform with OLM to PST conversion. Depending on the software, users can migrate Emails, Contacts, Calendar, Notes, Tasks, Folders, and Attachments.
For large archives or multiple OLM files, the right converter is of utmost importance. A good tool should provide a nice preview, keep the folder structure and minimize the manual work.
Softaken OLM to PST Conversion
Softaken is a good option for the users who need OLM conversion and many other export formats. The software converts OLM files to PST, EML, EMLX, MSG, and MBOX, as per its product information. It can also extract the attachments from OLM file and upload Outlook Mac Emails to IMAP-supported services.
The main advantage is that users can select an OLM file, preview its contents and export the required data to PST for a straightforward Mac-to-Windows migration. The software also claims to work without needing Outlook installed.
Another useful feature is that it supports large OLM files. The vendor says the application does not impose a specific file-size limit. It also gives a tree-like preview of the mailbox contents before conversion which helps users to verify the folders and data before creating the PST.
The free version is a chance to try the software, but the vendor currently limits the demo to the first 10 items from each folder.
Best for: Users looking for OLM to PST conversion and many other export options.
Latest update
The company also released version 8.0 in March 2026, touting enhancements to the user interface, email preview, attachment handling, PST export accuracy, large-file performance, folder/filter options, and stability.
DataVare OLM to PST Converter
DataVare is mainly focused on Mac Outlook OLM to Windows Outlook PST conversion. It has released features of converting emails, contacts, calendars, notes and other mailbox information keeping folder hierarchy and meta data.
One of the handy features is the preview option. After scanning an OLM file, users can view folders and mailbox items before starting the conversion. This is especially useful if the archive includes a lot of folders and the user wants to check the source data first.
DataVare also says that the software does not have any file size limits and can convert large OLM files. It supports selective conversion – users are able to select items for conversion instead of exporting all items from source file.
A further benefit is that the conversion does not require Outlook to be installed. This may make the migration easier if the user has the OLM archives but has no access to the original Mac Outlook environment.
The vendor also claims its generated PST is Unicode based and compatible with modern Windows Outlook versions.
Best for: Users mainly in need of a dedicated OLM to PST migration tool with preview, selective conversion, and large-file support.
TrustVare OLM to PST Converter
TrustVare has a wider approach for OLM migration. It has OLM-to-PST product that supports emails, contacts, notes, journals, events, to-do lists and other mailbox properties. It also supports batch conversion that can be useful when there are several OLM files to be processed.
The software provides File Mode and Folder Mode to select OLM files. Users can preview mailbox contents before conversion and choose the folders they wish to export. The vendor also describes filtering capabilities to allow selective migration.
An important thing to note is that TrustVare presents the converter as an independent application, meaning that users do not need to install Outlook for Mac or Outlook for Windows to carry out the conversion. After it there is also a conversion log which can be handy when you are checking the results of a larger migration.
TrustVare’s extended OLM converter also supports other output formats and direct migration options like EML, MSG, EMLX, MBOX, Office 365, and IMAP-based accounts.
Best for: Users dealing with multiple OLM files or seeking for selective migration and wider export choices.
Softaken vs. DataVare vs. TrustVare: Which One Should You Choose?
The best option depends on the migration requirement much more than on the number of features.
If you need flexibility beyond PST conversion, go for Softaken. Useful if the destination environment may change with support for PST, EML, EMLX, MSG and MBOX. Its most recent version 8.0 update also emphasizes usability and large file performance.
If you want Mac Outlook OLM to Windows Outlook PST migration then go with DataVare. This particular migration scenario is a no-brainer thanks to its preview, selective conversion, folder preservation and claimed support for large OLM files.
If you need batch processing, filtering, preview, logging or additional migration destinations then go for TrustVare. Its File Mode and Folder Mode can be handy when you need to deal with multiple source files, while its wider OLM converter supports various output and cloud-oriented migration paths.
Final Verdict
All the three tools satisfy the basic OLM to PST requirement but they have different strengths. Softaken OLM to PST Converter has been recently enhanced for better usability and offers a variety of export formats. DataVare OLM to PST Converter is a dedicated option for users who are looking to migrate Mac Outlook data mainly into Windows Outlook. TrustVare OLM to PST Converter provides more advanced migration process with batch conversion, filtering, preview and reporting features.
Before you decide for any converter, it is worth to try its free/demo version with a copy of the actual OLM data. Make sure the important folders, attachments, contacts, calendars and other required items are appearing correctly in the resulting PST. For business migrations you may also want to consider the number and size of OLM files, the required version of Outlook on the destination machine, selective-conversion requirements and whether other export formats are needed.
The best OLM to PST converter is the one that suits the size and complexity of your migration, while offering you enough control to verify the converted Outlook data before putting it to everyday use.
FAQs
1. Is it necessary to have Microsoft Outlook on my PC to run these converters?
No. All three utilities (Softaken, DataVare and TrustVare) are designed to run as independent standalone applications. You don’t need to have Outlook for Mac or Outlook for Windows installed on your machine to perform the conversion process. However, you will need to have Microsoft Outlook installed on the destination Windows system to be able to open and import the final .pst file.
2. Can I convert only selected folders or emails instead of the entire OLM file?
Yes. All three tools feature a tree-like preview and the ability to selectively convert. After scanning your source .olm file, you can browse the folders, view mailbox items (emails, contacts, calendars, notes) and check only the specific items or folders you want to export to the new PST file.
3. Can I convert large OLM archives with size limitation?
None of the three converters have a strict or arbitrary limit on file size. They are designed to handle bulky and large OLM files effortlessly. And Softaken’s version 8.0 update and DataVare/TrustVare’s architecture is specially designed to handle heavy mailbox archives without crashing.
4. What are the disadvantages of the free trial versions?
Most of the software vendors like Softaken, DataVare and TrustVare offer free trial or demo versions so that you can try the software before buying. Usually the demo version will limit the output of the conversion, for example you can only convert the first 10 items in a folder. This gives you a good opportunity to get hands-on and check folder structures, attachments and data integrity.
5. Which tool should I use if I want to process multiple OLM files?
Among the three, if you are doing batch processing, TrustVare OLM to PST Converter is the best choice. It has explicit support for File Mode and Folder Mode and logs conversions, making it ideal for efficiently handling multiple source archives and large migrations.
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