All about LES Files

The LES file type is primarily associated with Level Editor.

LESFile Extension LES
File extension: LES
File type:  game data file

What is a LES file?

LES files mostly belong to Level Editor. LES files are data files whose function depends on the software that created them.
They are used for several specific purposes:
  • Game Data: Many LES files act as level editor files. They may store scripts, stage settings, or graphics data. This format is seen in titles like IL-2 Sturmovik and games from Sierra Entertainment, and even in resources used in games such as Cossacks. Some files are called a Level Editor Script file or a game level file.
  • Lesson Content: In some cases, these files hold lesson plans or structured course data for educational software and LMS systems. They are often labeled as a Lesson file or LMS lesson plan.
  • Research Data: A few LES files are used in bioinformatics. For instance, they can contain TCGA RNA-Seq data. More details can be found at the TCGA portal.
  • FilExt.com note: If you want to open or view a LES file, use the specific level editor, course management tool, or research software that originally created it. A plain text editor may show some data if the file is text-based, but it might not display all structured information correctly.

    How to open LES files

    You need a suitable software like Level Editor to open a LES 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 LES file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LES file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online LES Text Viewer

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    Programs that open and convert LES files:

    1. Level Editor
      See the previous paragraphs to learn more about the main application. LES files are often referred to as Level Editor games because this type of file is primarily created or used by this software.
    2. Learn Lesson File
    3. Lesson File
      Also see .CBT.
    4. Logitech Entertainment Game Profile
    5. Mklesson Lesson File

    Technical Data for LES File Extension

    File classification:
    Game
    Related files:

    a les game data file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with LES files

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