DataTypes.net >> DEF file

DEF file format description

Many people share .def files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .def file can be edited, converted or printed with. On this page, we try to provide assistance for handling .def files.

7 filename extension(s) found in our database.

.def - C++ Definition File

The DEF development files are related to Visual C++. The DEF file is a C++ Definition File. C++ is a general-purpose programming language. It is a statically-typed free-form multi-paradigm language supporting procedural programming, data abstraction, object-oriented programming, and generic programming.

Application:
Visual C++
Category:
Development files
Mime-type:
text/plain
Magic:
- / -
Aliases:
-
C++ Definition File related extensions:
.dlg
Visual C++ Dialog
.rwstyle
RapidWeaver Style File
.slp
Adobe RoboHelp Screen Layout Page
.slz
Adobe RoboHelp Exported Screen Layout
.swd
Shockwave Flash Debug
.eld
EasyLanguage Document

.def - Binary Editor Definition Data

The DEF configuration files are related to Binary Editor. The DEF file is a Binary Editor Definition Data. The Binary Editor software allows for editing of the Ford EEC binary data. Its definition files (Strategy Files) are open source and are saved in Excel.

Application:
Binary Editor
Category:
Configuration files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
-
Binary Editor Definition Data related extensions:
.pdk
PC Desktop Cleaner Configuration
.vkm
VICE Keyboard Map
.ekm
Micro Focus Extra! Keyboard Map
.mix
Daqarta Mixer Settings
.cboard
Final Cut Pro Color Board Preset
.rvs
Lattice Reveal Analyzer Settings

.def - SmartWare Definition Data

The DEF data files are related to SmartWare. The DEF file is a SmartWare Definition Data. SmartWare is a programming platform. SmartWare also includes a word processor, spreadsheet, and communication modules.

Application:
SmartWare
Category:
Data files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
-
SmartWare Definition Data related extensions:
.aif
SmartWare Executable Program
.bdc
SmartWare Word Processor Backup Data
.bdf
SmartWare Backup Definition Data
.bfq
SmartWare Backup Query Definition
.bfr
SmartWare Backup Report Definition
.bfs
SmartWare Sort Definition Backup

.def - Doom 3 Map Definition Data

The DEF game data files are related to Doom 3. The DEF file is a Doom 3 Map Definition Data. Doom 3 is a science fiction survival horror first-person shooter video game developed by id Software.

Application:
Doom 3
Category:
Game Data files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
-
Doom 3 Map Definition Data related extensions:
.n3d
Super 3D Noah's Ark Data
.ymf
Grand Theft Auto V Manifest Data
.purblepairssave-ms
Purble Pairs Saved Game
.schem
WorldEdit Schematics Data
.pda
Doom 3 Audio/Video Log Data
.af
Doom 3 Articulated Figures Data

.def - IOBit Malware Fighter Definitions Data

The DEF data files are related to IOBit Malware Fighter. The DEF file is an IOBit Malware Fighter Definitions Data. IObit Malware Fighter is an anti-malware and anti-virus program.

Application:
IOBit Malware Fighter
Category:
Data files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
-
IOBit Malware Fighter Definitions Data related extensions:
.iml
Act! Internet Mail Message
.lgf
PMSCAN Log
.ofd
ObjectView Form Definition Data
.spcd
Zemax Spectrum Source
.ovolog
ooVoo Log File
.lgc
Corel WordPerfect DTD Compiler Logic Data

.def - ESwin Wizard

The DEF data files are related to ESwin. The DEF file is an ESwin Wizard. ESwin is a generic 3D structural design application developed by Procedimientos.

Application:
ESwin
Category:
Data files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
ast
ESwin Wizard related extensions:
.es
ESwin Project

.def - Mugen Character Definitions Data

The DEF game data files are related to Mugen. The DEF file is a Mugen Character Definitions Data. Mugen is a freeware 2D fighting game engine designed by Elecbyte.

Application:
Mugen
Category:
Game Data files
Mime-type:
application/octet-stream
Magic:
- / -
Aliases:
-
Mugen Character Definitions Data related extensions:
.air
Mugen Animation Data
.cmd
Mugen Character Commands Data
.cns
Mugen Character States Data
.sff
Mugen Sprite Data
.snd
Mugen Audio Data

Naturally, other applications may also use the .def file extension. Even harmful programs can create .def files. Be especially cautious with .def files coming from an unknown source!

Can't open a .def file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.def

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .def file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cef, d3f, ddf, de, deb, dec, ded, dee, der, det, dev, df, dfe, dff, drf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.df
Lightscape Parameter File
.ef
Diploma Exam File
.ddf
Alpha Journal Pro Document
.dev
DEViANCE Group Abbreviation
.dsf
ProWorx NXT Data Setup File
.drf
Autodesk 3D Scene

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-def-files

If you have useful information about the .def file format, then write to us!