All about ADU Files

The ADU file type is primarily associated with Addict.

ADU	File extension: ADU
	File type:	User Dictionary

What is an ADU file?

ADU files mostly belong to Addict by Addictive Software. Addict is a component suite that provides end-to-end solutions for adding spelling check and thesaurus support to your applications.

How to open ADU files

You need a suitable software like Addict to open an ADU file. You need a suitable software like Addict from Addictive Software to open an ADU 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 ADU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ADU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ADU Text Viewer

Choose your .adu file to analyze

or drag and drop it here

Online File Viewer

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.ADU File Won't Open? Here is What You Can Do

ADU files can originate from various programs and aren't universally openable.

1. Identify the Source: If received from a software developer, it is likely an Addict User Dictionary. If it comes from an audio workflow, it may be an ADPCM audio file.
2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
   • Plain text word lists suggest a dictionary file.
   • "RIFF" or "WAVE" indicates an audio format.
   • Unreadable binary data means it requires specific software.
3. Use the Original Software: The original program is usually required. Try Addict by Addictive Software, an audio player, or ask the sender if you are uncertain.
4. Use this Webpage: Drag and drop your file onto this page to detect its format, extract readable metadata, and preview the contents.

ADU file format:

A file format defines how the data in the file is structured. The file format can be determined based on the file extension and the signature (the first few characters of a file). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the ADU files is as follows:

ADU is seldom used as a file extension and is used by a few programs, each with its own file format. The two most popular formats are as follows:

• 55% of all ADU files belong to Addict User Dictionary. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. ADU files can be up to 370 KB in size, but are often around 140 bytes - 130 KB. The file type was developed 10 years ago and is still in use today. Several words can almost always be found in the files, e.g. (c) 1995-2000 Addictive Software, Addict User Dictionary, Version 4.0, addictsw-kagi-com, http://www.addictive.net/, (c) 1995-2008 Addictive Software, Addict User Dictionary, Version 4.1, http://www.AddictiveSoftware.com/ and support-AddictiveSoftware-com. The file name HMGlobalUserDict.adu is typical for these files. Such ADU files store data about person-related data.

All other ADU files (45%) have different formats. Files like these are sometimes linked to gruppe. Drag & drop your file here to see the file format and a preview of your ADU file!