DEC file format description

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

3 filename extension(s) found in our database.

.dec - VersaPro Declaration File

The DEC development files are related to VersaPro. The DEC file is a VersaPro Declaration File. VersaPro is an old family of PLC programming software. Declaration file is a summary of items in a folder, used by the PLC.

Development files
- / -
VersaPro Declaration File related extensions:
VersaPro Folder Backup
VersaPro Folder Contents Data
VersaPro Hardware Configuration
VersaPro Local Logic Block Backup
VersaPro Compiled Local Logic Block
VersaPro Compiled Motion Block

.dec - Dolphin EasyConverter Project

The DEC project files are related to Dolphin EasyConverter. The DEC file is a Dolphin EasyConverter Project. EasyConverter is a tool for creating publications in accessible formats such as Large Print, MP3, DAISY, Audio and Braille.

Dolphin EasyConverter
Project files
- / -
Dolphin EasyConverter Project related extensions:
Logic Pro Project
Visual Studio ACT Project
StarLogo Project Template
Akai MPC Software Project
Corel VideoStudio Project
DB-MAIN Project

.dx - DEC DX Document

The DX document files are related to DEC DX. The DX file is a DEC DX Document. DEC DX was a word processor application for MS-DOS. The DEC DX seems to be no longer supported.

Document files
- / -
dec, dxf
DEC DX Document related extensions:
Wacom Bamboo Paper Document
FrontDesigner Panel Data
PointLineCAD 2D Document
OpenOffice Draw Document
Visual Labels Document
LDraw Model File

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

Can't open a .dec 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:


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 .dec file extension is often given incorrectly!

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

cec, d3c, dc, dce, ddc, de, ded, def, des, dev, dex, dfc, drc, dsc, dwc

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Pictures by PC Drawing
Dr. Engrave Document
DEViANCE Group Abbreviation
Windows 3.1 Macro Recorder Data
DriveCam Video Event
Informix ESQL/C Source

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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

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