A lex file extension is related to the Lex or Flex data files.

There are 3 other file types using
the LEX file extension!

empty icon.lex - HP-Basic language extension

lex icon.lex - Microsoft SharePoint Server 2007 temporary data

empty icon.lex - Lexicon data

Detailed description

Software that open lex file

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LEX file extension - Lex or Flex data

What is lex file? How to open lex files?

File type specification:

System file type icon System file type

A lex file extension is associated with the Lex and Flex.

In computer science, lex is a program that generates lexical analyzers ("scanners" or "lexers"). Lex is commonly used with the yacc parser generator.

Lex is the standard lexical analyzer generator on many Unix systems, and a tool exhibiting its behavior is specified as part of the POSIX standard.

Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lexer in the C programming language.

The default software associated to open lex file:

Unix icon

The Open Group logoUnix  Linux/Unix software

Company or developer:
The Open Group

A multi-tasking operating system for various platforms, the first version of UNIX was released in 1969. It is developed by AT&T as well as various commercial vendors, universities and non-profit organizations. Traditional Original Unix systems have characteristics of Version 7 Unix or UNIX System V. Unix Specification have Mac OS X, Mac OS X Server, Solaris, AIX, HP/UX, z/OS etc. Other systems, such as Linux and BSD are called Unix-like or Unix system-like.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .lex file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open lex file, edit lex file, convert lex file, view lex file, play lex file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with lex file - Lex or Flex data

Click on the software link for more information about Unix. Unix uses lex file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).


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