What Is an IES File?
A file with the IESfile extensionis an IES photometric file that stands forIlluminating Engineering Society.
It’s aplain text filethat contains data on light for architectural programs that can simulate light.
Lighting manufacturers might publish files in this format to describe how various structures are affected by their product.
Another way to open one for free is withIES ViewerorLITESTAR 4D Open, or online throughVisual Photometric Tool.
The free IES Viewer mentioned above can save the file to BMP.
The freeDIALuxprogram can open ULD files, which are Unified Luminaire Data files.
Still Can’t Open It?
It’s easy to mistake one file for another if their file extensions are similar.
An EIP file looks similar as well, but it, too, is actually completely different.
If you have one of those files, it’s probably an image created byCapture One.
More Information on IES
The IES file format is called such because of theIlluminating Engineering Society.
to better design lighting conditions in the real world.
Even theNational Institute of Standards and Technologyhas referenced publications by the IES when it comes to Optical Radiation Calibrations.
Published by IES, The Lighting Handbook is the authoritative reference for lighting science.
If specific data is flawed or missing, AGi32 cannot use the file.
The software always provides a reason for rejecting a photometric file.
