Magic The Gathering Deck Format
Wizards of the Coast
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DEK is the file extension associated with the online version of the card game Magic: The Gathering Online (MTGO). The DEK file is used to store a collection (deck) of cards. From a technical point of view, DEKs are plain text files containing code in a markup XML language. Nevertheless, they should not be edited or modified by users.

Magic Online is a Wizards of the Coast LCC product with many users around the world.

Updated 06/01/2022

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Last updated

.mmf 04/13/2023
.mup 04/13/2023
.itl 04/13/2023
.scs 04/10/2023
.crypt 04/10/2023
.pnp 04/10/2023
.tap 04/10/2023
.btr 04/03/2023