Files with FDX extension can be also found as some sort of indexes from Apache Lucene text search engine library.

There is one other file type using
the FDX file extension!

empty icon.fdx - Final Draft XML document file

Detailed description

Software that works with fdx file extension

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FDX file - Apache Lucene field index

What is fdx file? How to open fdx files?

File type specification:

Various data file type icon Various data file type

The FDX file extension is also related to Apache Lucene and used for its field index files. Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java. 

These *.fdx files contain pointers to field data.

The default software associated to fdx file type:

Apache Software Foundation logoApache Lucene  Microsoft Windows software

Company or developer:
Apache Software Foundation

Apache Lucene is text search engine library written in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .fdx file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .fdx file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open fdx file, edit fdx file, convert fdx file, view fdx file, play fdx file etc. (if exist software for corresponding action in's database).

  • Others fdx file

Unspecified and all other actions for computer programs working with fdx file - Apache Lucene field index

Click on the software link for more information about Apache Lucene. Apache Lucene uses fdx file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

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