Opening a DDF File

The DDF file type is primarily associated with Notepad.

DDF	File extension: DDF
	File type:	Page Layout

What is a DDF file?

DDF files mostly belong to Notepad by Microsoft. DDF is the extension for a Diamond Directive File. A DDF file specifies properties for compressing a Windows Cabinet (CAB) file. CAB files are compressed data archives that are used for Windows software installations, such as system and device driver updates. DDF files are in plain text format and can be opened in any text editor. The DDF file itself is not placed in the CAB file. The DDF file extension is also used by IBM Sterling Gentran:Server for its Data Definition Format file. IBM Sterling Gentran:Server is a software for data translation, process control, and data communication for the Microsoft Windows operating system. The main purpose of this software is the translation and communication of electronic data interchange (EDI) and other similar types of data. Rede Nacional de Dados (RND) is a Brazilian automotive standard for the exchange of business documents. RND standard files are not directly included in the Sterling Gentran:Server database of EDI standards. Instead, RND support is provided via DDF files on the Sterling Gentran:Server Standards DVD. DDF files contain the RND standard layout, which is the description of the input or output side of a source map. This description is in an XML format.

How to open DDF files

You need a suitable software like Notepad to open a DDF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DDF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DDF file directly in the browser:. Just drag the file onto this browser window and drop it.

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Programs that open and convert DDF files:

Notepad by Microsoft
See the previous paragraphs to learn more about the main application. DDF files are often referred to as Notepad data files because this type of file is primarily created or used by this software.
ACDSee (Database Definition File) by ACD Systems
ACDSee is an image management tool developed by ACD Systems for organizing, viewing, and editing images on Windows, iOS, and macOS platforms. ACDSee database file is stored DDF format. This file format is classified as Database. Related links: ACDSee on Wikipedia, ACDSee on YouTube, ACDSee on Twitter
ACT! (Database Definition File) by ACT!
ACT! is a productivity software from ACT! for customer relationship management and marketing automation. ACT! stores field definition information such as the program's mapping in DDF file format. This file format is classified as Settings. Related links: ACT! on cicorp, ACT! on Wikipedia, ACT! on CRM
ActiveX (Data Definition Files) by Microsoft
ActiveX is a software framework developed by Microsoft which allows applications to share information and functionality through web browsers. The DDF file of ActiveX contains data definition information required to compress a cabinet file. This file format is classified as Settings. Related links: ActiveX on Wikipedia, ActiveX on YouTube, ActiveX on Investopedia
Bitstream Fontware (Disc Data File) by Bitstream
Bitstream Fontware is a vectored fonts converter developed by Bitstream for creating fonts usable in varying Windows programs such as Corel Draw and Adobe Pagemaker. Bitstream Fontware is associated with DDF for storing Disc Data File. This file format is classified as Settings. Related links: Bitstream Fontware download, Bitstream Fontware on cpa journal
Btrieve (Data Definition Files) by Actian
Btrieve is a navigational database developed by Actian for fast storing and retrieval of data. The program use the DDF file extension for storing definition of tables to be accessed through SQL engine. This file format is classified as Data. Related links: Btrieve on Wikipedia, Btrieve on Sourceforge, Btrieve on YouTube
Distributed Computing Environment (Device Definition File) by The Open Group
Distributed Computing Environment is a client/server software technology developed by The Open Group for building, managing, computing, and distributing programming function in a network. It stores device information in an DDF file extension. This file format is classified as Settings. Related links: Distributed Computing Environment on Wikipedia, Distributed Computing Environment on VMS Software, Distributed Computing Environment on Science Direct
GPS Pathfinder Office (Data Dictionary File) by Trimble
GPS Pathfinder Office is a suite of land surveying tools developed by Trimble for managing and processing GIS data. GPS Pathfinder Office store project information in DDF file format. This file format is classified as Settings. Related links: GPS Pathfinder Office on Frontier Precision, GPS Pathfinder Office on YouTube, GPS Pathfinder Office user manual
Grand Theft Auto (III File) by Rockstar Games
Grand Theft Auto is a series of action-adventure video games from Rockstar Games. The video game's III file is stored in DDF format. This file format is classified as Settings. Related links: Grand Theft Auto on Wikipedia, Grand Theft Auto on YouTube, Grand Theft Auto on Google Play
My Personal Diary (Entry Storage File) by CAM Development
My Personal Diary is a secure personal diary software from CAM Development for keeping track of day-to-day activities, goals, dreams, ideas, feelings, and general events. My Personal Diary Entry Storage File is stored in DDF format. This file format is classified as Database. Related links: My Personal Diary download
Pervasive PSQL (Data Dictionary Files) by Actian
Pervasive PSQL is a relational database management system from Actian used in packaged software applications and optimized for embedding in applications. Pervasive PSQL uses the DDF file extension for storing definition of tables. This file format is classified as Settings. Related links: Pervasive PSQL on Wikipedia, Pervasive PSQL on spectral core, Pervasive PSQL on YouTube
PostgreSQL (Database Definition File) by PostgreSQL
PostgreSQL is an advanced free and open-source relational database management system developed by PostgreSQL. Focused on SQL compliance and extensibility, the program stores its database definition file in DDF extension format. This file format is classified as Settings. Related links: PostgreSQL on AWS, PostgreSQL on Wikipedia, PostgreSQL on YouTube
ProWORX NxT (Descriptor Data File) by Schneider Electric
ProWORX NxT is a programming software from Schneider Electric for programming Modicon range programmable logic controllers (PLCs) applications. One of the program's database files, Descriptor Data File, is stored in DDF file extension. This file format is classified as Database. Related links: ProWORX NxT on YouTube, ProWORX NxT on Control
SQLite by D. Richard Hipp
SQLite is an open-source database library that can be embedded in both mobile and desktop apps developed by D. Richard Hipp. Related links: SQLite on Wikipedia, SQLite on YouTube, SQLite on tutorialspoint
UNICOM Intelligence (Data File) by UNICOM
UNICOM Intelligence is a survey and market research management platform developed by UNICOM for managing research processes and survey data management. UNICOM Intelligence Data File, which reads and writes case data to a database is stored in a DDF file extension. This file format is classified as Data. Related links: UNICOM Intelligence on dapresy, UNICOM Intelligence on Predictive Solutions, UNICOM Intelligence on Twitter
Wordpad (Page Layout) by Microsoft
WordPad is a word processor from Microsoft for all versions of Windows since Windows 95. WordPad can create, open, and read different forms of plaintext files, including files in DDF format. This file format is classified as Data. Related links: WordPad on Wikipedia, WordPad on Google Play Store, WordPad on YouTube

DDF format details:

The file format determines how the data is stored in the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our evaluation of the DDF files is as follows:

The DDF file extension is not widely used. Such a file includes different formats for different programs. The two most common formats are as follows:

20% of all DDF files start with the bytes 46 43 00 00, which are crucial for this file format. These files contain neither text nor words, but only data. DDF files can be up to 16 MB in size, but are often around 5 KB - 1 MB. The file type was used 20 years ago. The following filename is common: Field.ddf or ATTRIB.DDF. Files like these are about index and user.
8% of all DDF files store the data in the SQL file format. An SQL file contains a lightweight SQLite database, widely used in application development for storing application related data. These files are binary files, so they do not contain text, but only cryptic characters. The file size is in the range of 1 MB to 54 MB. Several words can almost always be found in the files, e.g. SQLite format 3. Files like these are sometimes connected to gold.

The remaining 72% of all DDF files are different files with different signatures, the following 7 formats can be found: config, OPTION and DTDF. These files sometimes refer to fuzzy, dispatch or binfile. Just click the "Choose your .ddf file to analyze" button on this page to find out what your DDF file is.

Technical Data for DDF File Extension

File classification:

Data

Related files:

mdd, dff, btr, sqlite, dat, xml, zip, txt, cfg

Mime type:

text/plain

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ACDSee.ddf
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\5.0\ACDSee5.exe %1

ProgramID: ACDSee.DDF
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\ACDSee.exe %1

ProgramID: Intel_Device_View.Document
EXEFile: %ProgramFiles%\Intel\INTELD~1\bin\idv.exe %1

ProgramID: Data Deck Memory Card
EXEFile: G:\epsxe\MemManager.exe %1

ProgramID: Data Deck Memory Card
EXEFile: E:\Emulators\PlayStation\memcards\MemManager.exe %1

ProgramID: DataKit
EXEFile: %ProgramFiles%\Database Designer\Database Designer.exe %1

ProgramID: Trimble.data.dictionary.file
EXEFile: %ProgramFiles%\GPS Pathfinder Office 2.80\ddeditor.exe %1

ProgramID: Data Deck Memory Card
EXEFile: C:\Documents and Settings\Owner\Desktop\ePSXeLauncher\MemManager.exe

ProgramID: ddffile
EXEFile: %ProgramFiles%\National Instruments\Circuit Design Suite 10.0\ultiboard.exe

ProgramID: Datamat.Document
EXEFile: %ProgramFiles%\MICROA~1\Datamat\Datamat.exe

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a ddf Page Layout is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with DDF files

Associate the DDF file extension with the correct application.
Update your software that should actually open page layouts. Because only the current version supports the latest DDF file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Notepad update.
To make sure that your DDF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DDF file online - secure, fast, and no downloads needed.