ADU file format description
Many people share .adu files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .adu file can be edited, converted or printed with. On this page, we try to provide assistance for handling .adu files.
1 filename extension(s) found in our database.
.adu - Addict Custom Dictionary
ADU file is an Addict Custom Dictionary. Addict is a professional native VCL component suite that provides end-to-end solutions for adding spelling check and thesaurus support to your applications.
Naturally, other applications may also use the .adu file extension. Even harmful programs can create .adu files. Be especially cautious with .adu files coming from an unknown source!
Can't open a .adu file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows can't open this file:
To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.
To avoid this error, you need to set the file association correctly.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
The .adu file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
acu, qdu, aud, asu, afu, adk, adi, ad, xdu, dau, au, aru, aeu, adj, adh
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- ACUCOBOL-GT Compiled Program
- Sun Audio File
- FARSITE Adjustment Factors Data
- After Dark Screensaver
- Command and Conquer Compressed Audio
- BenMAP Adjustment Factor File
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