Home : File Types : DUB File

.DUB File Extension

File TypeWindows Spelling Dictionary Identifier

2.0 (1 Vote)
CategorySystem Files

What is a DUB file?

A DUB file is a Windows system file used to add a spelling dictionary to Windows applications, such as Microsoft Word and Internet Explorer. DUB files, the most notable of which is MsSp7en-us.dub, are found in the C:/Windows/Globalization/ELS/SpellDictionaries directory.

More Information

Windows spelling dictionaries are comprised of three files: a .LEX file, an .ACL file, and a .DUB file. The LEX file contains data used to check a user's spelling and grammar, the ACL file contains data used to auto-correct a user's spelling and grammar mistakes, and the DUB file contains a small amount of data that, potentially, is used to identify the dictionary's language. However, at this time, LEX files' true purpose is unknown.

Common DUB Filenames

MsSp7en-us.dub - Name of the DUB file associated with the English (United States) Microsoft spelling dictionary.

How do I open a DUB file?

DUB files are Windows system files and are not meant to be opened.

Open over 400 file formats with File Viewer Plus.

Programs that open DUB files

Not meant to be opened
Updated 12/30/2020

About DUB Files

Our goal is to help you understand what a file with a *.dub suffix is and how to open it.

The Windows Spelling Dictionary Identifier file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

If you would like to suggest any additions or updates to this page, please let us know.