All about DEU Files

The DEU file type is primarily associated with Unreal Engine.

DEU	File extension: DEU
	File type:	resource file

What is a DEU file?

DEU files mostly belong to Unreal Engine. A DEU file serves as a game data file. In many cases, it holds text using a UTF-16 (LE) encoding and is used within game engines such as Unreal Engine.
Some DEU files store language resources in German, which is why they are labeled as German language files.
Key details provided by FilExt.com:

It stores game settings or resource data.

The file may use UTF-16 text encoding.

It is linked to the German language content.

In some instances, it works as a save file (for example, in Diablo 2).

FilExt.com note: For more on the Unreal Engine use case, please see this page.

How do you open DEU files?

You need a suitable software like Unreal Engine to open a DEU file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DEU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DEU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online DEU Text Viewer

Choose your .deu file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert DEU files:

Unreal Engine
See the previous paragraphs to learn more about the main application. DEU files are often referred to as Unreal Engine games because this type of file is primarily created or used by this software.
ATI Radeon Video Driver
German File (possibly)
DEU is an acronym for Deutsch (German).
Personal Paint (German Language User Interface File) by Amiga
This is a file of the form: UITEXT.xxx where the file extension denotes the language the user interface should appear in. It is used by Amiga programs which can change their user interface. Personal Paint is one; ColorType, Personal Fonts Maker 2 and Personal Write are others. Related links: Amiga Forever

Technical Data for DEU File Extension

File classification:

Game

Related files:

uasset, umap, loc, upk, eng, esm, plk, dan, nor, sav, ini, dat, cfg, json

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AcroExch.Lang

a deu resource file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with DEU files

Associate the DEU file extension with the correct application.
Update your software that should actually open resource files. Because only the current version supports the latest DEU file format. Search, therefore, e.g. on the manufacturer website after an available Unreal Engine update.
To make sure that your DEU file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DEU file online - secure, fast, and no downloads needed.