Opening a TNL File

The TNL file type is primarily associated with GoPro Studio.

TNLFile Extension TNL
File extension: TNL
File type:  image file

What is a TNL file?

TNL files mostly belong to GoPro Studio. A TNL file holds a small image used as a preview for an MP4 video.
When you see a file with the TNL extension, it usually contains a JPEG image that acts as a thumbnail. This image is generated by video software like GoPro Studio to show a quick visual summary of the video content without the need to load the full file.
This approach helps the software manage and display multiple video files quickly and efficiently.
  • The file stores a standard image format internally.
  • It is generated automatically during video processing.
  • Removing the TNL file will not harm your video, as it can be recreated.
  • How to open TNL files

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

    Online TNL File Viewer

    Choose your .tnl file to view this image

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    How do you convert TNL files to JPG, PNG, SVG, PDF, ...

    If you want to convert or edit a TNL file, you can use our free Online TNL File Converter (powered by Convert.Guru):
    1. To do so, click the "Choose your .tnl file to view this image" button above.
    2. Your TNL file will then be displayed in the browser.
    3. Now click on "Save as..." at the top of the page.
    4. Then choose the image format (e.g. JPG, PNG, TIFF, PDF, ...) you want.
    5. Download the converted file.

    Programs that open and convert TNL files:

    1. GoPro Studio
      See the previous paragraphs to learn more about the main application. TNL files are often referred to as GoPro Studio raster images because this type of file is primarily created or used by this software.
    2. Thumbnail
      Related links: XnView

    TNL file extension format:

    To find out what program is needed to open TNL files, you need to determine the file format. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the TNL files looks like this:

    Files with the TNL extension are quite widely used. This file type includes different formats for the applicable programs. The file formats most commonly found in TNL files are:

    All other TNL files (40%) have no uniform format. Tagged as zong, thumbnail, tunnel, open, sfile, mobi or tech. You can get all the details of your TNL file by dragging it onto this page or by clicking the button "Choose your .tnl file to view this image" above.

    Technical Data for TNL File Extension

    File classification:
    Raster Image
    Related files:
    Related links:

    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: GraphicsConverterPro.tnl, FileType: Thumbnail, AppName: GraphicsConverter-reg
    EXEFile: GraphicsConverter.exe

    ProgramID: XnView.Image
    EXEFile: %ProgramFiles%\XnView\xnview.exe %1


    a tnl image file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with TNL files

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