Opening LU Files

The LU file type is primarily associated with Lua interpreter.

LUFile Extension LU
File extension: LU
File type:  source code script

What is a LU file?

LU files mostly belong to Lua interpreter. LU files have multiple uses.
  • Lua Source Code: These files contain Lua scripts. They are stored as simple text and can be edited in any text editor or run with a Lua interpreter. For more details, see the official Lua website.
  • Game Data Files: Some LU files hold game data. Examples include data for game engines like the Luminous Engine or resource containers in games such as LittleBigPlanet and Left 4 Dead 2. They may include level data, localization content, or other game-specific information.
  • LUIS Application Files: A portion of these files are used by Microsoft LUIS for language understanding tasks. They store models and language data essential to the LUIS language processing system. More about this can be found at the LUIS website.
  • FilExt.com tip: The extension is thus used both for plain text code and for proprietary game or AI data formats. Inspecting the file content (for example, checking if it is plain text as opposed to binary data) helps decide the proper tool to open it.

    How to open a LU file

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

    Online LU Text Viewer

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    Programs that open and convert LU files:

    1. Lua interpreter
      See the previous paragraphs to learn more about the main application. LU files are often referred to as Lua interpreter developers because this type of file is primarily created or used by this software.
    2. ThoughtWing Library Unit File

    Technical Data for LU File Extension

    File classification:
    Developer
    Related files:

    The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

    ProgramID: ZAMailSafe
    EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe -warning %1


    a lu source code script is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with LU files

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