You can easily convert Mac OST to EML files using MacUncle OST to EML Converter. The tool supports Mac OS Machines.
Start MacUncle OST to EML Converter on your Mac Computer.
Select OST file using Add File(s) or Add Folder(s).
Choose saving format as EML.
You can also select the File Naming Option and Choose Destination path if required.
Mac OST to EML conversion process completed successfully, you can see the message of completion.