How to Convert MBOX to EML without file size limitations?

To convert MBOX to EML without file size limitations, the most practical approach is to use a professional MBOX conversion tool instead of manual methods, which often fail with large mailbox files. A solution like the MailConverterTools MBOX Converter Tool is designed to handle both small and very large MBOX files efficiently.

Begin by installing and launching the tool on your system. Add the large MBOX file or multiple MBOX files at once and preview the emails to confirm data accuracy. Choose EML as the output format and select a destination folder. The tool processes emails individually, so even oversized MBOX files are converted smoothly without splitting errors or data loss.

Because the conversion is not restricted by mailbox size, all emails—including those with large attachments—are saved as separate EML files with their original structure, headers, and content intact. This makes it a reliable way to convert MBOX to EML when dealing with large or unlimited file sizes.