What's the HDT File?

By:   |   Edited: December 05, 2018

Microsoft Silver

HDT File Summary

Most HDT files can be viewed with seven known software applications, typically Adobe Photoshop CC developed by Adobe Systems Incorporated. It's main file type association is the Photoshop HDR Toning Preset File format, but also includes three other rarely-seen file types. Generally, these files are considered Settings Files, but they can also be Text Files or Encoded Files.

We have found HDT files on the Windows, Mac, and Linux operating systems. They are both mobile and desktop device friendly. The HDT File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

Although there is a lot more to know about HDT files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Popular
6146
Standing

/ 11690

Active

Relevance

5

December

2018

Edited

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Varieties of HDT Files

  4 known file types use this extension

Chief HDT Description

.HDT
File Name:.hdt
Group:Photoshop HDR Toning Preset File

A settings file made using Adobe Photoshop professional CS5 or later image editing software. It stores settings to adjust a High Dynamic Range (HDR) photo. It includes tone, colour and other settings.

Author: Adobe Systems Incorporated
Class:Settings Files
Subkey: HKEY_CLASSES_ROOT\.hdt

Software Programs That Open The Photoshop HDR Toning Preset File:


Adobe Photoshop CC by Adobe Systems Incorporated

Windows
Mac

Other HDT Descriptions

.HDT
File Name:.hdt
Group:HTML Document Tree File

The file is used for documents containing HTML tree from a syntactically correct HTML document.

Author: Open Source
Class:Text Files

Software Programs That Open HTML Document Tree File Files:


Microsoft Notepad by Microsoft Corporation

Compatible with:

Windows
Mac
Linux

Notepad++ by Don Ho

Compatible with:

Windows
Mac
Linux

Gedit by GNOME

Compatible with:

Linux

Apple TextEdit by Apple

Compatible with:

Mac
.HDT
File Name:.hdt
Group:Proactive Windows Security Explorer Hash Data

The file stores hash data from Proactive Windows Security Explorer; a Microsoft Windows password security test software.

Author: ElcomSoft
Class:Encoded Files

Software Programs That Open Proactive Windows Security Explorer Hash Data Files:


Proactive Windows Security Explorer by ElcomSoft

Compatible with:

Windows
.HDT
File Name:.hdt
Group:Helium Music Manager TagEditor File

The file contains some type of data utilized by TagEditor integrated into Helium Music Manager; a Microsoft Windows complex music manager and multimedia player.

Author: Open Source
Class:Data Files

Software Programs That Open Helium Music Manager TagEditor File Files:


Helium Music Manager by Open Source

Compatible with:

Windows

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HDT Demand


Browser Popularity

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


Troubleshooting Problems Opening HDT Files


Common HDT Opening Problems

Adobe Photoshop CC Disappeared

When trying to open your HDT file, you get the error "Can't Open HDT File Type". Usually, this is because you do not have Adobe Photoshop CC for %%os%% installed. Your operating system cannot associate your HDT with Adobe Photoshop CC, so double-clicking the file won't work.


Tip: When another HDT application is installed, you can choose to open it by selecting "Show Apps" and using that program.


Outdated Adobe Photoshop CC

Sometimes your installed version of Adobe Photoshop CC won't support your Photoshop HDR Toning Preset File file. Visit the Adobe Systems Incorporated website to download (or purchase) the latest version of Adobe Photoshop CC. Most of the time your Photoshop HDR Toning Preset File file was created by a newer Adobe Photoshop CC than what you have installed.


Tip: Sometimes you can get a clue about the version of HDT file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).


Regardless, most of the HDT file opening problems relate to not having the right version of Adobe Photoshop CC installed.


Additional HDT Opening Issues

Errors opening Photoshop HDR Toning Preset File files can still occur even with the latest Adobe Photoshop CC software installed on your computer. There can be other issues - unrelated to software - preventing you from opening HDT files. Problems unrelated to software:

  • Corrupt Windows Registry file path references for HDT
  • Accidental deletion of the description of the HDT file in the Windows registry
  • Invalid installation of a HDT-associated program (eg. Adobe Photoshop CC)
  • Something has caused file corruption of your HDT
  • Your HDT is infected with malware
  • Hardware associated with HDT has outdated drivers
  • Your PC doesn’t have enough available resources to open the Photoshop HDR Toning Preset File file

Quiz: Which of the following is not a MIME type?









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