To open an MBOX file in Microsoft Outlook, you first need to convert it into PST format because Outlook does not directly support MBOX files. You can use MailsDaddy MBOX to PST Converter, which provides a straightforward way to convert MBOX mailbox data into an Outlook-compatible PST file. The software allows you to add multiple MBOX files, preview emails and attachments, and select specific folders for conversion. It also supports MBOX files from different email clients and maintains the original folder hierarchy, email formatting, attachments, and inline images during the conversion process. Once the conversion is complete, open Microsoft Outlook, go to File → Open & Export → Open Outlook Data File, and select the converted PST file to access your emails. You can try the free demo to preview the data and export up to 20 items per folder before purchasing the full version.

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