Begin by installing the SysInfo Mac OLM Converter on your Mac device. After the installation is complete, launch the software to start the conversion process.

Click Select OLM File(s) to import one or more OLM files into the software. You can also choose Select Folder to add an entire folder containing multiple OLM files from your Mac.
If you accidentally add the wrong files, use Remove Selected to delete a specific file from the list, or click Clear List to remove all added items at once.

Browse your Mac to locate the required OLM files or folders, then click Open to load them into the software. You can also simply drag and drop the OLM files directly into the application window for faster upload.
Once the files are successfully added, click Proceed to move to the next step.

After the OLM file is loaded, click Expand All Folders to display the complete mailbox hierarchy and view all included folders and subfolders.
If you want to find a particular folder quickly, use the Search Folders option and enter a keyword to locate it within the folder tree.

• The software provides an advanced preview panel that allows you to review the uploaded OLM data before starting the conversion.
• To find specific emails quickly, use the Advanced Search feature and search by keyword based on fields such as To, From, or Subject.
• You can also double-click any email or item to open the preview window and examine its details more closely. The preview section lets you view data in different formats, including HTML Body, Plain Text, Attachments, Calendar, Contacts, Header, MIME, and Raw HTML.

If the emails do not display properly in the software preview panel, you can use the browser preview option instead. Simply enable the Open in browser (if preview fails) checkbox to view your OLM data in a web browser before starting the conversion.

Choose the required files and folders from the expanded tree structure. Use Collapse All Folders to minimize the folder view, then click Proceed to continue.

To convert OLM emails into another format, select Export File Format and choose PST from the drop-down list as the desired file format.

You can use the available optional settings and filters, such as:

• Date Range Filter: Export emails from a selected time period by setting a start and end date.
• Custom Output Folder: Assign a custom name to the output folder for easy identification.
• File Naming Policy: Choose a preferred naming format for the converted files, such as Subject or Subject_Date.
• Skip Existing Exports: Avoid converting files that have already been exported to prevent duplication.

Note: These general settings remain the same for all selected file formats.

You can also apply advanced options before starting the conversion:

• Duplicate Detection: Exclude duplicate emails based on To, From, Body, Subject, and CC.
• Attachment Handling: Choose to exclude attachments, save them separately, or include them with the converted files.
• MBOX Segmentation: Split large MBOX files by size or create one MBOX file per folder.
• PDF Size Restriction: Save PDF files in smaller parts by defining a size limit.
• PST Segmentation: Divide large PST files into smaller parts by MB or GB.

Note: Advanced options for MBOX, PST, and PDF are available only when that specific output format is selected.

Click Browse to choose the destination folder where you want to save the converted file, then click Choose to confirm the location.

Finally, click Start Export to begin the conversion and save the resultant PST file to the selected location on your Mac.

Once the conversion is complete, click Close to exit the pop-up window. You can also click Export Log to download the detailed conversion report. To begin another OLM conversion, select Start New Export.