.DEC File Extension

.DEC File Extension

File Type 1

Declaration File

Developer N/A
Popularity
3.0  |  8 Votes
Category Developer Files
Format N/A

What is a DEC file?

A DEC file is a text-based declaration file used by ADL (Application Development Language) programs. It contains global variables and constants that may be referenced by other files within a programming project.

More Information

DEC files are typically saved in the EDK II Declaration (DEC) format. EDK II is a development code base used to create Unified Extensible Firmware Interface (UEFI) drivers, firmware images, and applications. The purpose of the DEC format is to assist in the building of EDK components and EDK II modules and create UEFI applications and firmware images.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open DEC files

Windows
ADL software
Edit with a text editor
Mac
ADL software
Edit with a text editor
Updated March 8, 2018
File Type 2

Magic: The Gathering Online Deck File

Developer N/A
Popularity
2.0  |  2 Votes
Category Game Files
Format Text

What is a DEC file?

A DEC file contains a card deck for Magic: The Gathering Online (MTGO), an online card-playing game. It stores a collection of cards that make up a playable deck, which includes the number of cards and the names of each card in the deck. DEC files may also contain the names of sideboard cards and notes.

More Information
Screenshot of a .dec file in TJ Soft Decked Builder 1.25
DEC file open in TJ Soft Decked Builder 1.25

DEC files are saved in plain text, with each line beginning with the number of cards followed by the name of the card. Some lines may also begin with SB:, which indicates that they are sideboard cards, or //, which indicates a note.

Since the files are saved in plain text, you can easily create, modify, and share playable decks. You can open and view DEC files with any text editor, such as Notepad, WordPad, and TextEdit.

However, you should only modify and save DEC files with plain text editors to avoid saving extra formatting information, which cannot be read. Also, you may have to change the file extension of a deck saved using a text editor from .txt to .dec.

NOTE: Playable decks may also be saved as .DEK files.

Programs that open DEC files

Updated December 13, 2018

Verified by FileInfo.com

The FileInfo.com team has independently researched all file formats and software programs listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.