IES File

What are IES files and how to open them

Are you having problems opening an IES file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your IES files.

What is an IES file?

An .IES file is an IESNA Photometric Data file.

The Illuminating Engineering Society or IES file type is primarily associated with photometric data files. Illumination Engineering Society of North America (IESNA) created the standard file format for electronic transfers of photometric data.

Photometric data files are saved as .ies files, which are composed of light quantities and measurements. They depict lighting intensity and luminosity. IES files are records of light measurement in terms of perceived brightness to the human eye. They are commonly used by engineers, architects, and 3D game makers.

The .ies files help simulate lighting systems before they are installed on different infrastructures. Furthermore, IES files are likewise helpful for examining light source illumination for outdoor sites like roadways and parks. It helps engineers and architects determine what light fixtures are best for a specific structure. And since .ies file deals mainly with lighting and photometry data, many 3D programs can open and support this file type in creating computer-aided design projects.

How to open IES files

We have identified five IES openers that are compatible with this specific type of IES file.

Programs that open IESNA Photometric Data files

Last updated: January 24, 2024

Various apps that use files with this extension

These apps are known to open certain types of IES files. Remember, different programs may use IES files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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