Discover How to Convert PST to OLM Using 2 Best Methods
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You can convert PST files to OLM for Outlook for Mac using a reliable tool – i.e. BitRecover PST to OLM converter for secure bulk conversion with complete data integrity on Mac & Windows. Alternate manual approach involves using Outlook for Mac Legacy only however it may be unreliable as it approaches end of life in October 2026. The guide covers step-by-step instructions for all users.
BitRecover Offline PST to OLM Converter for Mac & Windows
BitRecover PST Converter is a safe & reliable tool to bulk export Outlook PST files from any source to OLM (Outlook for Mac Archive File) without dependency on Outlook. Export PST files to OLM directly & quickly with all PST components – emails, attachments, contacts, calendars and the original folder hierarchy.
Free Version of BitRecover PST to OLM Tool: Demo version gives a sneak-peek into the advanced caliber of the paid-pro version – built for industry level tasks. Converter 25 emails per PST mailbox folders to OLM export without any cost.
How BitRecover Helps You Seamlessly Convert PST Files to OLM?
- Support batch conversion of multiple PST files & folders (nested folder included) to OLM of any scale without file or item limits in a faster way using concurrency and multithreading algorithms and minimizing external dependencies of Outlook.
- GDPR, HIPAA, CAPA & SOC-2 compliant software, to convert PST files to OLM without holding on to the data. Conversion takes place in a 100% offline way without connecting to an external server.
- The tool supports readonly conversion without tampering with the source PST files. Microsoft Marketplace Approved PST to OLM Wizard.
- Auto-detect PST files from Outlook on Windows and then save to OLM at any desired location on your PC.
- Convert PST to OLM while retaining all items along with their properties such as:
- Emails: Attachments, Folder Hierarchy, Internet Headers, Metadata (Date/Time, Read/Unread Status).
- Contacts: Full Name, Email Addresses, Phone Numbers, Physical Addresses, Categories.
- Calendar: Event Title, Start/End Time, Location, Attendees, Recurrence Rules.
- Journal: Subject, Entry Type, Date/Time, Duration, Body Text.
- Enables selective PST to OLM converter: Date Range, To, From, Email Subject, and using Include/Exclude email with attachments.
- BitRecover PST to OLM converter supports conversion of all ANSI or UNICODE from any source. With the Recovery Mode of “PST to OLM” converter you can repair & extract data from large corrupted/orphaned PST files.
Converter PST to OLM on All Mac & Windows Devices – Supported Specifications
- Supported Windows OS: Windows 11 (64-bit), 10, 8, 7 (32-bit or 64-bit) & Windows Server 2025, 2022, 2019, 2016, etc.
- Supported Mac OS: Sequoia, Sonoma, Ventura, Monterey, Big Sur, Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion, etc.
- Supported Source: Outlook ANSI and Unicode PST and OST files.
- Supported MS Outlook: Outlook 2024, 2021, 2019, 2016, 2013, 2010, 2007, and all old editions
How to Convert PST File to OLM Format?
- First, download and launch the PST to OLM converter and read these guidelines.
- Add Outlook PST files in the software panel using dual modes available in GUI.
- Thereafter, select specific folders to import PST to OLM and click Next.
- Choose Outlook for Mac (OLM) as a saving option from the software panel.
- Now, choose the destination path as per your choice for saving output data.
- Tap on the Convert button to convert PST to OLM format.
- After completing the PST to OLM conversion process, get the resultant data.
- Last, import the resultant OLM file in Mac Outlook.
How to Convert PST to OLM Manually?
The manual solution requires Mac Outlook installation on your MacBook and iMac computers. You can easily convert the *.pst to *.olm extension by completing 2 phases. First, you need to copy the PST file from a Windows computer and paste it to a Mac computer. Then follow the below-mentioned steps:
Phase 1: Import PST to Mac Outlook
- Start the Mac Outlook email client on your PC.
- Thereafter, choose File >> Import option.
- Choose Outlook for Windows archive (.pst) and click Continue.
- Browse specific PST files and hit the Import button.
- Click Finish, after completing the import process.
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Note: You can see the imported items in Mac Outlook under On My Computer.
Phase 2: Export OLM File from Mac Outlook
- Launch Mac Outlook on your Mac Machine.
- After that, choose File >> Export option.
- Check the required items to export from Export to Archive File (.olm) and continue.
- Type a name for the exported archive OLM file under Save As.
- Select a preferred location to store the exported OLM file and click Save.
- Your data has been exported, hit the Finish button.
- Go to the selected destination to get the exported OLM file.
Know Manual Method Limitations
The manual technique is recommended if you want to convert PST to OLM format free of cost. If you prefer to follow the above-mentioned tips, then it will take enough time as it can transfer PST to OLM one by one. Hence, this method is not suitable for batch conversion.
This is a complex method to transfer PST to OLM format as it requires various steps including 2 different phases. Hence, non-technical users may face difficulties while finishing this task through the manual approach.
Some items, such as complex email structures or certain metadata, may not be fully migrated through manual ways. Even there is no guarantee available to maintain actual folder structure and hierarchy. There is a risk of data loss or corruption during the import and processes.
Free Online Converter V/S BitRecover PST to OLM Converter
Many users wonder “Is there a free PST to OLM converter available?” – and they can be an alternate way to save Outlook PST files as OLM. However before choosing one here are some crucial factors to understand:
| Comparison Factor | Online Converter | BitRecover Tool |
|---|---|---|
| File Size Limit | Restrictive Size – between 50 – 100 MB | No Limitation (Tested with hundreds of GB of UNICODE PST) |
| Data Security | Low as requires uploading data to third party server | High – Offline conversion with International privacy policies compliance |
| Internet Requirement | Yes | No |
| Auto-Detect from Computer | No | Yes |
| Conversion Speed | Slow as depends of internet | Fast due to better algorithms |
Common Reasons to Convert PST files to OLM
- Switching from Windows Outlook to Mac Outlook New- Microsoft officially put OLM Import/Export on their Microsoft 365 Roadmap with a release date of June 2026. Although not available currently – can be a safe mention to import PST in Outlook New for Mac when Outlook Legacy Mac reaches end of support in October 2026. It ensures cross-platform access
- Keeping a Unified Archive in a Single OLM Format: PST & OLM both are created via Outlook Windows & Mac respectively. In order to keep email archiving compliance & keep all data in an organized way under a single OLM repository
PST Vs OLM File Extension
Compatibility: PST file is primarily used by MS Outlook on Windows, but some other applications also support it. While the OLM file was exclusively developed for use in Mac Outlook only.
Platform Specificity: PST file is commonly associated with Windows-based Outlook editions. While OLM file is specifically designed for Mac Outlook versions.
Storage Location: If you configure your email account in Windows Outlook using POP3 settings then it will create a PST file at the default storage location. Windows Outlook also exports its complete profile data in PST format at any preferred location. While OLM is Mac Outlook exported format.
File Structure: Both PST (Personal Storage Table) and OLM (MS Outlook file for Mac Operating System) files are suitable for storing complete email folders, contacts, calendars, tasks, tasks, notes, and other data preserving the hierarchical structure.
Import/Export Capabilities: PST files can easily be imported and exported across Outlook versions and some different applications. Whereas OLM has limited import and export capabilities as it is specifically tailored for Mac Outlook.
Frequently Asked Queries
Q 1: Does the software allow you to batch convert PST files to OLM?
Yes, the PST to OLM Converter permits users to batch convert PST to OLM files with attachments, saving time and effort.
Q 2: Can I install the PST to OLM converter tool on a Windows 11 machine?
Yes, the windows-supported PST software is compatible with all versions of Windows OS and can be installed on Windows 11.
Q3: Does PST Converter support corrupted PST files?
Yes, the tool supports converting corrupted PST files into OLM format using the “Recovery Mode” option. It repairs minor corruption in PST files and converts them into OLM.
Conclusion
We hope that after reading this comprehensive guide all your doubts are clear regarding how to convert PST to OLM files. The software is advanced and efficient to handle the conversion issue. Both technical and non-technical users can utilize this utility to perform PST to OLM conversion using the two most reliable ways. They can convert any type of data including email, contacts etc. If you still have any queries, keep in touch with our technical support team, they are available 24/7.
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