A daily updated filename extension database!

FASL file extension

The table below provides useful information about the .fasl file extension. It answers questions such as:

  • What is the .fasl file?
  • What program do I need to open a .fasl file?
  • How can the .fasl file be opened, edited or printed?
  • How can I convert .fasl files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

✅ Lisp Source Code

LSP file is a Lisp Source Code. Lisp is a family of computer programming languages with a long history and a distinctive, fully parenthesized syntax.
Application: GNU Common Lisp
Mime-type: text/plain
Magic number: -
Magic string: -
Sample: -
LSP aliases:
cl, fasl, lisp
LSP related links:
LSP related extensions:
AutoLISP Visual LISP Executable

Interleaf Compiled Lisp

GCL Cross Referencing Data

Emacs Lisp Code

Emacs Lisp Compiled Bytecode

Java in Lisp Source Code

Emacs Buffer Data

Other types of files may also use the .fasl file extension.

🚫 The .fasl file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

asl, fal, fas, fsl, tasl

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

NASL Pedant TASL Script
Adobe Photoshop Layer Style
Miranda IM Emotions Definition
Falcon Script
Compiled Fast-Load AutoLISP
Form Z Script

🔴 Can't open a .fasl file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .fasl file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .fasl file extension, write to us!

🔴 Rate our FASL page

Please help us by rating our FASL page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

3 of 5 stars (11 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文