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.IES File Extension

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File TypeIES Photometric Data File

DeveloperIlluminating Engineering Society
3.0 (4 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryData Files


This file is saved in a binary format, which requires a specific program to read its contents.


Data file created in the standardized IES (Illuminating Engineering Society) photometric format; contains measurements of light and light quantities; commonly used to simulate lighting systems in buildings before they are installed.

More Information

IES files are also used to examine light source illumination for roadways and other outdoor sites. They are commonly published by lighting manufacturers.

Programs that open IES files
Autodesk AutoCAD Architecture 2017
AutoDesSys RenderZone
LTI Optics Photopia
Musco Sports Lighting Lumen Micro
Updated 5/20/2016

FileInfo - The File Extensions Database

This page contains information about the .IES extension and its known file associations. Our goal is to help you understand what an IES file is and how to open it.

The IES Photometric Data file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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