Click the "Select File" button above, and choose your MDN file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MDN to another file type
To convert MDN receipts to another format, you need Cleo Harmony or other Data software.
Convert a file to MDN
To convert other file formats to the "EDI Communication Log" file type, you need software like Cleo Harmony or a similar tool.
About MDN files
The .mdn file primarily represents a Message Disposition Notification (MDN), which acts as an electronic return receipt in AS2 (Applicability Statement 2) EDI B2B communications. Companies use software like Cleo Harmony or other AS2 servers to send and receive B2B data securely. Less frequently, a .mdn file is a Blank Access Database Template created by Microsoft Access. MDN receipts are machine-to-machine logs formatted in raw text, MIME, or XML. They are not designed for human readability. Opening them outside an AS2 management console yields confusing cryptographic signatures, routing headers, and unformatted data. Alternatively, Access template .mdn files are proprietary binary files that require a paid Microsoft 365 subscription to open and use. Users typically need to convert AS2 MDN files to TXT, XML, or PDF to document the audit trail for compliance teams in a readable format. Converting a Microsoft Access template directly to a spreadsheet is generally impossible without the original software. Because these file formats are highly specialized and often closed, standard online converters fail to process them. Just drag and drop your file into convert.guru to identify the format, view it, and convert it when possible. Our engine can inspect the file and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your MDN file, detects the exact format, and lets you read the text inside.
If you want to convert MDN file to DB, SQLITE, SQLITE3, MDB, ACCDB, DBF, ODB, FDB, GDB, MYD, FRM or SQL, you can use Cleo Harmony or similar software from the "AS2 EDI Return Receipt" category. In the File menu, look for Save As… or Export….
To convert NDF, SQLITE3, BAK, RDB, SQL, DB4, MDF, MDB, LDF, DB, DB3 or SQLITE files to MDN, try Cleo Harmony or another comparable tool in the "AS2 EDI Return Receipt" category.
The MDN 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 MDN converter.