LEX File

What are LEX files and how to open them

Are you having problems opening a LEX file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your LEX files.

What is a LEX file?

LEX files have multiple uses, and Lexington Dictionary Format is one of them. Read more about the other uses further down the page.

Lexington Dictionary Format File

Files that use the .lex file extension are typically associated with the Microsoft Office dictionary tool. LEX files are stored in the Lexington Dictionary file format. The LEX files are used to extend the default spelling dictionary used by the Microsoft Office dictionary software application.

They are also used by other dictionaries, such as the Merriam-Webster dictionary software application. The files are referenced when a user performs a spell check on a document they are writing.

How to open LEX files

Important: Different programs may use files with the LEX file extension for different purposes, so unless you are sure which format your LEX file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested two different LEX openers which you will find listed below.

Last updated: May 21, 2022

All known file formats using extension .LEX

While Lexington Dictionary Format File is a popular type of LEX-file, we know of 3 different uses of the .LEX file extension. Different software may use files with the same extension for different types of data.

Polar SpellChecker Dictionary File

We know that one LEX format is Polar SpellChecker Dictionary File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Proximity Technology Lexicon File

We know that one LEX format is Proximity Technology Lexicon File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of LEX files. Remember, different programs may use LEX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about LEX file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.