File Extension Library


.LEX File Extension

  • Developer by: Adobe Systems Incorporated
  • Category: Various data Files

What is an .LEX file?

.LEX file extension is created by Adobe Systems Incorporated. .LEX has been classified as Various data Files.

.LEX is Lexicon file

The lex file extension is commonly used for lexicon files. These files usually serve same purpose as Dictionary  or Vocabulary files - they store words or phrases that can be used in a program, typically for spell-checking.

These .lex files are used in numerous programs, like Adobe software, Microsoft Windows, Microsoft Office but in different formats.


How to open:

Usually, you can import lexicon files to their original programs only.

How to convert:

Sometimes users can export or transform lexicons / dictionaries between various formats.

How to Open .LEX file on different platforms

Open .LEX File on Windows

  • Right-click a .LEX
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .LEX file and Select check box "Always use this app to open .LEX files" Press "Ok"

Open .LEX File on Mac

  • Right-click (or Ctrl + Left-click) the .LEX file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .LEX File on Linux

Right click on the .LEX file, choose "Open with" and select a program from the list above

Open .LEX File on iPhone

Select a file. If you don't see an application to open the .LEX file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .LEX File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .LEX files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .LEX files

  1. You need to update the application that you normally use to open .LEX files. Only the latest version of the software supports the current .LEX file format
  2. You need to check the .LEX file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)