HDR files: what are they and how do I open them?
Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.
.hdr file type #1: Radiance map
Files with hdr file suffix can mainly be found as radiance maps, some sort of graphics format that includes illumination and lighting data.
Further details:
The hdr file extension is associated with Adobe Photoshop and used for files containing radiance map data.
Radiance maps are useful for representing true illumination values in image-based rendering applications, and are useful for recording incident illumination and using this light to illuminate CG objects for realistic compositing.
HDR is also abbreviation for High Dynamic Range imaging technique.
Open file with:
Adobe Photoshop
One of the best bitmap graphic editing program
Adobe Photoshop for Mac
Mac version of popular digital image editor
Adobe Creative Cloud
Latest, subscription based productivity suite from Adobe
.hdr file type #2: ArcView header data
Files with hdr file extension might also be found as image header files. Might be used in many programs.
Further details:
The hdr file extension is also related to a special raster data header file is an ASCII text file containing size and coordinate information for the layer.
Many standard software packages require the hdr file to provide important geo-referencing information for the image.
Open file with:
ArcGIS for Desktop Basic (ArcView)
A GIS application used to work with geographic data
.hdr file type #3: DataFlex header data
Files with hdr file extension could also be header files for DataFlex software.
Further details:
The hdr file extension is associated with DataFlex and use for header files.
If header files exist, there will be one HDR for each DAT. The header file is mostly a copy of the the first 2,776 bytes of the datafile in case that part of the file gets clobbered for some reason.
An administrative utility allows a developer to restore a damaged header based on the 'backup' provided in the HDR file.
Open file with:
DataFlex
A relational, 4GL Object Oriented database programming language
.hdr file type #4: ENVI header data
Files with hdr file extension were also used in ENVI software for header purposes.
Further details:
The hdr file extension is associated with ENVI, a software solution used to process and analyze geospatial images for Microsoft Windows, from Exelis Visual Information Solutions.
The hdr file contains header data.
Open file with:
ENVI
A software for processing and analyzing of geospatial images
.hdr file type #5: InstallShield setup header
Files with hdr extension might also be found as setup headers from InstallShield software.
Further details:
File extension hdr is also related InstallShield Windows software installation program. These files contain some sort of header information for setup.
Open file with:
InstallShield
An installation package maker
.hdr file type #6: Mail.dat header data
Files with hdr file extension are related to the Mail.dat header data format.
Further details:
The hdr file extension is associated with the PostalOne!, a web-based alternative to existing manual mailing processes with electronic suite.
The hdr file stores Mail.dat header data from PostalOne! suite.
We are sorry, there is currently no specific software link to open this kind of file.
.hdr file type #7: MicroSim PCBoard hole-drill schedule report
Files with hdr file extension might also be hole-drill schedule reports for PCBoard (OrCAD) software.
Further details:
The hdr file extension was also used in old program by MicroSim called PCBoard (also known as OrCAD PCB Designer), developed by Cadence Design Systems.
The hdr file used in this program did contain saved hole-drill schedule report.
Open file with:
OrCAD PCB Designer
A modeling suite used to design printed circuit boards
.hdr file type #8: Microsoft IIS Server NNTP header data
A hdr file extension is associated with the Microsoft IIS Server NNTP header data format.
Further details:
The hdr file extension is related to the Microsoft IIS (Microsoft Internet Information Services) an extensible web server for Microsoft Windows system.
The hdr file contains NNTP (Network News Transfer Protocol) header data.
Open file with:
Microsoft Internet Information Services
A web server application for Windows
.hdr file type #9: Photomatix HDR image
Files with hdr file extension might also be found as HDR images from Photomatix software.
Further details:
The hdr file extension is also related to Photomatix software and used for its default HDR image format.
In image processing, computer graphics, and photography, high dynamic range imaging (HDRI or just HDR) is a set of techniques that allows a greater dynamic range of exposures (the range of values between light and dark areas) than normal digital imaging techniques. The intention of HDRI is to accurately represent the wide range of intensity levels found in real scenes ranging from direct sunlight to shadows.
Also used for another image formats like Apollo HRDU, Analyze from Mayo Foundation Biomedical Imaging Resource etc. Probably unrelated, just sharing same extension and file type.
Open file with:
Photomatix Pro
A software for making and editing of HDR photos
.hdr file type #10: Procomm Plus message header
Files with hdr file extension might also be saved message headers for Symantec Procomm Plus terminal emulation software.
Further details:
The hdr file extension was also used by Procomm Plus, a terminal emulation and file transfer software from Symantec.
The hdr file used in Procomm contains saved message header.
Open file with:
Procomm Plus
A terminal emulation and file transfer program
.hdr file type #11: Transport Fever texture
Files with hdr file extension are related to the Transport Fever texture format.
Further details:
The hdr file extension is associated with the Transport Fever, an economic simulation and railroad tycoon video game for Microsoft Windows and Mac.
The hdr file stores texture for 3D model.
Open file with:
Transport Fever
Management simulation and railroad tycoon video game