All about JFX Files

The JFX file type is primarily associated with TIFF viewer.

JFXFile Extension JFX
File extension: JFX
File type:  fax document

What is a JFX file?

JFX files mostly belong to TIFF viewer. JFX files have several distinct uses. Most commonly, some are fax documents saved in the TIFF format. These files hold scanned fax images and can be opened with software that supports TIFF files.
  • If your JFX file is a fax document, a standard TIFF viewer or fax software will work.
  • In some cases, the file is a Java Forex script used to configure strategies on the JForex platform. For more details, visit the JForex website.
  • Other JFX files, some, contain spectrometer data from a Jasco V-730 UV-Vis Spectrophotometer. These are managed by tools like JASCO Spectra Manager; additional info is available at the JASCO website.
  • FilExt.com tip: Examine the file’s header or properties to determine its content, and then use the appropriate software to view or process it.

    How to open JFX files

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

    Online JFX Text Viewer

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    Programs that open and convert JFX files:

    1. TIFF viewer
      See the previous paragraphs to learn more about the main application. JFX files are often referred to as TIFF viewer raster images because this type of file is primarily created or used by this software.
    2. J2 Fax File

    JFX file format details:

    The file format determines how the data is stored in the file. 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. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below is our analysis of the JFX files:

    The JFX file ending predominantly uses a uniform format. However, the following two file formats are common:

    The remaining 6% of all JFX files are files with no common format, often e.g. iRM. Drag & drop your file here to see the file format and a preview of your JFX file!

    Technical Data for JFX File Extension

    File classification:
    Raster Image
    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: EFXFileType, FileType: eFax Document, AppName: eFax Messenger Plus
    EXEFile: Hotpls32.exe

    ProgramID: EFXFileType, FileType: eFax Document, AppName: eFax.com Microviewer
    EXEFile: eFaxView.exe

    ProgramID: EFXFileType, FileType: eFax.com Document, AppName: eFax.com Microviewer

    ProgramID: JFXFileType, FileType: jFax Document, AppName: eFax Messenger Plus

    ProgramID: eFaxMessenger.Document.3.2
    EXEFile: %ProgramFiles%\eFax Messenger Plus 3.2\J2GPlus.exe %1

    ProgramID: eFaxMessenger.Document.3.3
    EXEFile: %ProgramFiles%\eFax Messenger Plus 3.3\J2GPlus.exe %1

    ProgramID: eFaxMessenger.Document.3.4
    EXEFile: %ProgramFiles%\eFax Messenger 3.4\J2GPlus.exe %1

    ProgramID: EFXFileType
    EXEFile: %ProgramFiles%\COMMON~1\efax\HotPls32.exe %1

    ProgramID: TIFImage.Document
    EXEFile: %ProgramFiles%\Sharp\Sharpdesk\Imaging\KodakImg.Exe %1

    ProgramID: CPCView.JfaxDoc
    EXEFile: %ProgramFiles%\Internet Explorer\iexplore.exe %1

    ProgramID: j2Messenger.Document.3.3
    EXEFile: %ProgramFiles%\j2 Messenger Plus 3.3\J2GPlus.exe %1

    ProgramID: eFaxMessenger.Document.3.5
    EXEFile: %ProgramFiles%\eFax Messenger 3.5\J2GPlus.exe %1

    ProgramID: j2Messenger.Document.3.5
    EXEFile: %ProgramFiles%\j2 Messenger 3.5\J2GPlus.exe %1

    ProgramID: eFaxMessenger.Document.4.0
    EXEFile: %ProgramFiles%\eFax Messenger 4.0\J2GPlus.exe %1

    ProgramID: TIFImage.Document
    EXEFile: %ProgramFiles%\Windows NT\Accessories\ImageVue\Kodakimg.exe %1

    ProgramID: TIFImage.Document
    EXEFile: %ProgramFiles%\Toshiba\Desktop Document Manager\Imaging\KodakImg.Exe %1

    ProgramID: eFaxMessenger.Document.4.1
    EXEFile: %ProgramFiles%\eFax Messenger 4.1\J2GPlus.exe

    ProgramID: TIFImage.Document
    EXEFile: %ProgramFiles%\Imaging Standard\kodakprv.Exe

    ProgramID: TIFImage.Document
    EXEFile: %ProgramFiles%\Windows NT\Accesorios\ImageVue\Kodakimg.exe

    ProgramID: jfxfile
    EXEFile: %ProgramFiles%\Windows NT\Accessories\ImageVue\Kodakimg.exe

    ProgramID: j2Messenger.Document.4.0
    EXEFile: %ProgramFiles%\j2 Messenger 4.0\J2GPlus.exe

    ProgramID: eFaxMessenger.Document.4.2
    EXEFile: %ProgramFiles%\eFax Messenger 4.2\J2GPlus.exe

    ProgramID: CPCView.JfaxDoc
    EXEFile: %ProgramFiles%\MOZILL~1\FIREFOX.EXE

    ProgramID: j2Messenger.Document.4.2
    EXEFile: %ProgramFiles%\j2 Messenger 4.2\J2GPlus.exe


    a jfx fax document is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with JFX files

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