All about 3DA Files

The 3DA file type is primarily associated with 3DActor.

3DAFile Extension 3DA
File extension: 3DA
File type:  3D model file

What is a 3DA file?

3DA files mostly belong to 3DActor. 3DA files store 3D model data used primarily as 3D actor files. These files hold information on geometry, mapping, and sometimes animation data, making them a core component in 3D visualization and game projects.
Key details sourced by FilExt.com include:
  • Purpose: To store data that defines 3D models or actors for use in digital art and game environments.
  • Structure: Some versions use a Microsoft Compound Document format to organize multiple data streams.
  • Creators and Software: They are often produced with tools like 3DActor and 3D-Coat, and may be utilized in related editors.
  • Usage: The files are integrated into 3D projects where model geometry and texturing data are required.
  • FilExt.com tip: For viewing a 3DA file, use a 3D viewer or editor that supports these file structures. Converting to more common formats (e.g., .OBJ or .FBX) might help if the native support is not available.

    How do you open 3DA files?

    You need a suitable software like 3DActor to open a 3DA 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 3DA file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 3DA file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online 3DA Text Viewer

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    Programs that open and convert 3DA files:

    1. 3DActor
      See the previous paragraphs to learn more about the main application. 3DA files are often referred to as 3DActor 3d images because this type of file is primarily created or used by this software.
    2. Atmosphere (World File) by AtmosphereWorlds
      The Mime types used with this association are: model/x-3da.

    Technical Data for 3DA File Extension

    File classification:
    3D Image
    Related files:
    Mime type:
    model/x-3da

    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: 3DAudio.Document.1
    EXEFile: %ProgramFiles%s\3D Audio v1.2\3DAudio.exe


    a 3da 3D model file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with 3DA files

    • Associate the 3DA file extension with the correct application.
    • Update your software that should actually open 3d model files. Because only the current version supports the latest 3DA file format. Search, therefore, e.g. on the manufacturer website after an available 3DActor update.
    • To make sure that your 3DA file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .3DA file online - secure, fast, and no downloads needed.
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