Lex language source code
File type: Source code and script file
An l file extension is related to the Lex language source code files used by Unix-based operating systems.
Found 7 different file type records with the same l filename suffix.
File type category:
Source code and script file
Date updated: June 14, 2017
The l file extension is commonly used by Lex, originally written by Eric Schmidt and Mike Lesk, a standard lexical analyzer generator on many Unix systems, and a tool exhibiting its behavior is specified as part of the POSIX standard.
The l file contains Lex source code.
Use any source code editor to view content of *.l files.
Software applications that handle other tasks involving l files:
Linux/Unix
File type category:
Various data file
Date updated: August 30, 2019
The l file extension is associated with Fractint, a fractal generating software for Microsoft Windows operating system developed by Fractint Development Team.
The l file contains L-System fractal generated by Fractint.
Use compatible tools to work with *.l files.
Probably can be exported to other formats.
Software applications that handle other tasks involving l files:
Microsoft Windows
File type category:
Game file
Date updated: October 3, 2026
Game of Life is a puzzle game developed by Math.com. It is available for multiple platforms, including Microsoft Windows.
An .l file stores game data used by Game of Life.
Open the .l file with Game of Life. Use the game's file-opening or import command if the file is not opened by double-clicking it.
Because other software may use the same extension for unrelated formats, do not open this file with a different program unless it is identified as a Game of Life file.
The .l file is used by Game of Life and should be opened and saved from that program. If Game of Life provides an export option, use it to create a file in the desired format; do not convert it by simply renaming the extension.
Software applications that handle other tasks involving l files:
Multiplatform
File type category:
Source code and script file
Date updated: October 2, 2026
Lisp was originally specified in 1958 and is the second-oldest high-level programming language still in widespread use; only Fortran is older. It has changed considerably since its early versions, and many dialects have developed over time.
The best-known general-purpose dialects include Common Lisp and Scheme. An L file may therefore contain code for a specific dialect and its associated interpreter, compiler, or development environment. The .l extension does not define a single standardized Lisp source format.
Lisp implementations are available for Windows, macOS, Linux, and other Unix-like platforms. The extension is still encountered, although Lisp projects also commonly use other extensions according to their dialect and development tools.
Open an .l file with any text editor or source-code editor to read or modify its contents. Because it is plain text, no special file viewer is required.
To run the code, load it into a compatible Lisp implementation or development environment for the dialect in which it was written. The correct implementation may be needed because Lisp dialects are not fully interchangeable.
Lisp source code is not normally converted to another file format. A compatible Lisp implementation can load or compile the file into an executable, compiled object, or other implementation-specific output.
Moving the code between Lisp dialects generally requires manual adaptation or a dialect-specific translator; simply changing the file extension does not perform a conversion.
File type category:
Audio and sound file
Date updated: November 16, 2018
Record marked as obsolete and not updated for a long time.
The l file extension is associated with the Sound Designer II, an audio composing software.
The l file stores audio data from Sound Designer II.
Most likely some old format without support. No further information could be found.
Use compatible tools to work with *.l files.
Probably can be converted to other formats.
Software applications that can open l files:
Apple macOS / Mac OS X
Apps designed for playing l files:
Apple macOS / Mac OS X
File type category:
Various data file
Date updated: October 10, 2018
Record marked as obsolete and not updated for a long time.
The l file extension is associated with the WATCOM wlink directive files.
Watcom is producer of various tools, including Watcom C compiler introduced in 1988. Watcom was acquired by Powersoft in 1994, and Powersoft merged with Sybase in 1995. In 2003, the Watcom C/C++ and Fortran compilers were released as an open source project under a new name, Open Watcom.
File type category:
Source code and script file
Date updated: June 16, 2019
The l file extension is associated with the Xcode, an integrated development tool for Apple Mac, which enables users to create programs for macOS and iOS.
The l file contains core Lex program.
Use Xcode to work with *.l files.
Probably can be compiled to other formats.
Software applications that can open l files:
Apple macOS / Mac OS X
Software applications that can edit l files:
Apple macOS / Mac OS X
Software capable of saving l files:
Apple macOS / Mac OS X
Software apps that create l files:
Apple macOS / Mac OS X
Software applications that handle other tasks involving l files:
Apple macOS / Mac OS X
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