MBX Converter

Extract text from MBX files

Select File
Drop or upload your .MBX file

Online File Converter

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How to extract text from your MBX file

Click the "Select File" button above, and choose your MBX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.

Convert MBX to another file type

To convert your MBX file to another format, you need Outlook Express or other Data software.

Convert a file to MBX

To convert other file formats to the "Legacy Email Archive" file type, you need software like Outlook Express or a similar tool.

About MBX files

The .MBX extension primarily identifies legacy email mailbox files generated by older clients like Microsoft Outlook Express (versions 4.0 and earlier) and Qualcomm Eudora. These files act as database containers, storing entire folders of messages, headers, and attachments in a single continuous stream.

The Challenge: Users typically encounter .MBX files when trying to recover old backups on modern systems. The format is obsolete; current versions of Microsoft Outlook and Windows Mail do not natively support it. Because .MBX files are monolithic, they are prone to "corruption lock," where a single damaged bit can prevent the entire mailbox from opening. Furthermore, proprietary formatting in Outlook Express variants makes them unreadable in standard text editors.

The Solution:

For Outlook Migration: Convert .MBX to PST. This allows you to import old emails directly into modern Outlook 365 environments.
For Universal Access: Convert to EML. This splits the large mailbox into individual message files that can be opened by any email client or web browser.
For Archiving: Convert to PDF. This creates a permanent, non-editable document of your correspondence, perfect for legal discovery or long-term storage.
For GIS Users: If your file is not email-related, it is likely a compiled application for MapInfo Pro. These cannot be converted to text but are executable within the MapInfo environment.

Convert.Guru analyzes your MBX file, detects the exact format, and lets you read the text inside.

Users also converted MBOX, NWS, LKO and BOE files.

FAQ

If you want to convert MBX file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Outlook Express or similar software from the "Email Mailbox Storage" category. In the File menu, look for Save As… or Export….

To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to MBX, try Outlook Express or another comparable tool in the "Email Mailbox Storage" category.

The MBX Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MBX converter.