4DD Converter

Extract text from 4DD files


Drop or upload your .4DD file
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How to extract text from your 4DD file

  1. Click the "Select File" button above, and choose your 4DD file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert 4DD to another file type

To convert your 4DD file to another format, you need 4D or other Database software.

Convert a file to 4DD

To convert other file formats to the "Relational Data File" file type, you need software like 4D or a similar tool.


About 4DD files

The .4dd file functions as the primary data container for databases created with 4D (4th Dimension). While the application's schema, forms, and code are stored in a separate structure file (typically 4db or .4dsk), the .4dd file houses the actual records and user-generated content. A major point of friction for users is that a .4dd file is useless in isolation; it acts as a proprietary binary blob that cannot be interpreted without its matching structure file and the 4D engine. You cannot simply open this file in Microsoft Excel or a generic text editor to view the data. To make this information usable outside the 4D ecosystem, users typically need to export the data to open standards. For spreadsheet analysis, converting to CSV or XLSX is the standard workflow. For migrating legacy systems to modern backends, exporting to SQL dumps compatible with MySQL or PostgreSQL is necessary. Archive purposes are best served by XML or flat-file text formats.

Convert.Guru analyzes your 4DD file, detects the exact format, and lets you read the text inside.

Users also converted SAV, SF3 and BOK files.


FAQ

If you want to convert 4DD file to DB, SQLITE, SQLITE3, MDB, ACCDB, DBF, ODB, FDB, GDB, MYD, FRM or SQL, you can use 4D or similar software from the "Database Record Storage" 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 4DD, try 4D or another comparable tool in the "Database Record Storage" category.



The 4DD 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 4DD converter.