Extract text from DEK files
To convert your DEK file to another format, you need Magic: The Gathering Online or other Game software.
To convert other file formats to the "Trading Card Decklist" file type, you need software like Magic: The Gathering Online or a similar tool.
Most commonly, a .DEK file is a decklist used by Magic: The Gathering Online (MTGO) to store card collections and strategies. Under the hood, these are XML files containing card IDs and metadata (like quantity and sideboard status). The problem is that this proprietary XML structure is often incompatible with modern web-based deck builders like Moxfield, Archidekt, or the MTG Arena client. Users frequently need to convert these .DEK files into standard TXT card lists or CSV spreadsheets to analyze mana curves in Microsoft Excel or share lists on forums.
However, this extension is ambiguous. A .DEK file might also be a package for the Pure Data visual programming language (specifically for the Deken package manager). In this context, the file is actually a renamed ZIP archive containing external libraries. Less frequently, it could be a unit deck for Eugen Systems games like Wargame: Red Dragon or a draft declaration form from the Polish tax tool Przyjazne Deklaracje.
Recommendation: For MTG players, convert your .DEK to TXT for import compatibility or PDF for printing registration sheets. If you suspect it is a Pure Data file, try renaming the extension to ZIP to extract its contents manually.
Convert.Guru analyzes your DEK file, detects the exact format, and lets you read the text inside.
Users also converted EKDOSI_DEK, DEC, TXT, GTX, MC and FIC files.
If you want to convert DEK file to TXT, EXE, MSI, APP, DMG, DEB, RPM, PKG, RUN, SH, BAT or CMD, you can use Magic: The Gathering Online or similar software from the "Game Deck Configuration" category. In the File menu, look for Save As… or Export….
To convert JAR, APP, SCR, IPA, COM, AAB, PS1, DMG, VBS, EXE, XAPK or MSI files to DEK, try Magic: The Gathering Online or another comparable tool in the "Game Deck Configuration" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our DEK converter.