Opening a LISP File

The LISP file type is primarily associated with AutoCAD.

LISP	File extension: LISP
	File type:	source code

What is a LISP file?

LISP files mostly belong to AutoCAD by Autodesk. A LISP file is a script written in Lisp programming language. It contains functions, classes, expressions, data structures, and statements used to automate operaitions for building an app. Lisp is the second oldest programming language (second only to Fortran). Several dialects of Lisp have been developed over the years. Some of them include Racket, Clojure, AutoLisp, Visual Lisp, and Scheme. AutoLisp, for example, is a Lisp dialect for writing macros used to automate processes in AutoCAD architectural design program. Another type of LISP file is a Windows executable containing an application or image encrypted by a variant of STOP ransomware.

How to open a LISP file

You need a suitable software like AutoCAD to open a LISP file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your LISP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LISP file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LISP Text Viewer

Choose your .lisp file to analyze

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Online File Viewer

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Programs that open and convert LISP files:

AutoCAD by Autodesk
See the previous paragraphs to learn more about the main application. LISP files are often referred to as AutoCAD developers because this type of file is primarily created or used by this software.
Sublime (source code) by Sublime
Sublime is a cross-platform code editor for desktop environments. It can be used to create and edit a LISP file written in various dialects of Lisp programming language. This file format is classified as Developer. Related links: Lisp (programming language)

LISP format details:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. When there is a problem with a file, the first step to solving it is to determine the file format. Our analysis of the LISP files produces the following result:

The LISP file ending covers a large number of different file formats. However, the following two file formats are common:

20% of all LISP files are based on the well-known JPG file format. JPEG is the standard image format for lossy and compressed image data. They consist of illegible, cryptic characters. The files are often between 65 KB and 5 MB in size. The file type was created recently. Examples of file names are 20180601_Film3.jpg.lisp or IMG_20180601.jpg.lisp. Such LISP files store data about film.
10% of all LISP files store the data in the PDF file format. PDF is short for Portable Document Format, is a file format to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. If you open these files in a text editor, you will see only illegible characters. LISP files can be up to 4 MB in size, but are often around 52 KB - 1 MB.

The remaining 70% of all LISP files are different files with different signatures, the following 6 formats exist: EXE, ZIP and positive. The category is list, xlsx, details, keygen, winrar, count or docx. Just click the "Choose your .lisp file to analyze" button on this page to find out what your LISP file is.

Technical Data for LISP File Extension

File classification:

Developer

Related files:

lsp, llsp, names, data, jpg, z, pdf, fas, l, exe, zip, dvb, dsd

Mime type:

text/x-common-lisp

a lisp source code is a special file format by Autodesk and should only be edited and saved with the appropriate software.

How to solve problems with LISP files

Associate the LISP file extension with the correct application.
Update your software that should actually open source codes. Because only the current version supports the latest LISP file format. Search, therefore, e.g. on the Autodesk manufacturer website after an available AutoCAD update.
To make sure that your LISP file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .LISP file online - secure, fast, and no downloads needed.