Basic information about KL3 file

When there is a problem with opening files with the file extension KL3（*.KL3 or *.kl3）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the KL3 file yourself.

There are 1 file types using the KL3 file extension in our database. In the further part of this page, you will find detail information about all the KL3 file with their brief description and a list of programs that support KL3 file sorted by operating systems. The table below provides useful information about the KL3 file extension. It answers questions such as:
  • What is the KL3 file?
  • How to open a KL3 file?
  • What programs do I need to open a KL3 file?
  • What programs help to create and edit a KL3 file?
  • How to convert KL3 files to another file format?
  • How to convert another files to KL3 file format?


1.Detail information about KL3 file extension: KL3 Source Code File

File type KL3 Source Code File Category Developer Files
Developer N/A File format N/A
Description KL3 file is a KL3 Source Code File. The kl3 file extension is associated with the KL3, a pragmatic, interpreted functional programming language.

The kl3 file stores source code written in KL3 language.

The kl3 file is written in simple text format and it is viewable in any text editor.
Software programs that will open, edit or convert KL3 files

Windows		 NotePad++ text editor
Microsoft Windows NotePad

macOS		 TextEdit

Linux		 gedit



Can't open a KL3 file?

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

”Can't open this file: example.KL3”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the KL3 extension without any issue.


Where I can download the application that support KL3 file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of KL3 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/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a KL3 file?

The reasons for the lack of the ability to open a KL3 file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a KL3 file. If there is still something wrong, you might want to check:

  • Whether the KL3 file is damaged.
  • Whether the KL3 file is incorrectly linked in the registry entries.
  • Whether the KL3 file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the KL3 file format is incompletely.
  • Whether the KL3 file is infected.
  • Whether the drivers of the equipment used for opening a KL3 file are up to date.
  • Whether your computer has enough hardware resources to open a KL3 file.

If the KL3 file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.