An hdx file extension is related to the AutoCAD, a CAD/CAM tool for Microsoft Windows and Apple Mac OS X systems. An hdx file stores help index.

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

empty icon.hdx - Harvest database file

Detailed description

Software that works with hdx file extension

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HDX file - AutoCAD Delphi help index

What is hdx file? How to open hdx files?

File type specification:

Various data file type icon Various data file type

The hdx file extension is associated with the AutoCAD, a 2D/3D CAD modeling software for Microsoft Windows and macOS (Mac OS X) operating systems.

The hdx file stores index related to help documentation.

The hdx help index format is not used by current version of AutoCAD.

The default software associated to hdx file type:

AutoCAD icon

Autodesk, Inc. logoAutoCAD  Microsoft Windows software

Company or developer:
Autodesk, Inc.

A CAD designing software with the powerful, flexible features. It is a CAD development platform that provides tools to build custom AutoCAD-based software products for specific markets. The default file formats using by AutoCAD are: DWG and DXF.

AutoCAD for Mac icon

Autodesk, Inc. logoAutoCAD for Mac  Apple macOS / Mac OS X software

Company or developer:
Autodesk, Inc.

AutoCAD for Mac software—it’s AutoCAD, for the Mac, bringing robust 3D free-form design tools and powerful drafting capabilities to your platform of choice. It takes full advantage of the macOS platform, with an intuitive, graphical user interface that makes it easy to bring your ideas to life.

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 .hdx 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 software applications associated to the .hdx 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 hdx file, edit hdx file, convert hdx file, view hdx file, play hdx file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting hdx files.

  • Create hdx file
  • Others hdx file

Programs that can create hdx file - AutoCAD Delphi help index

Programs supporting the exension hdx on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create hdx file action.

Microsoft Windows:

Apple macOS / Mac OS X:

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