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Details of the .ies file extension

The table below provides useful information about the .ies file extension. It answers questions such as:

  • What is the .ies file?
  • What program do I need to open a .ies file?
  • How can the .ies file be opened, edited or printed?
  • Where can I find the specifications for .ies?
  • Which MIME-type is associated with the .ies extension?
  • How can I convert .ies files to another format?
  • What are other, similar filename extensions to .ies?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.ies file extension details

IESNA Photometric Data

IESNA Photometric Data .ies file icon
IES file is an IESNA Photometric Data. The Illuminating Engineering Society of North America (IESNA) is a non-profit, learned society founded in New York City on January 10, 1906. The Society's stated mission is to improve the lighted environment by bringing together those with lighting knowledge and by translating that knowledge into actions that benefit the public.
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
IES aliases:
IES related links:
IES related extensions:
DIALux Unified Luminaire Data


DIALux Project

Other types of files may also use the .ies file extension.

.ies file extension error

The .ies file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

es, les, irs, is, ids, ise, eis, iws, iec, oes, ifs, kes, iss

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

E-Prime E-Studio 1.x Experiment File
Mklesson Lesson File
TurboWin LES Data
Adobe Photoshop Optimized Settings
Modula-3 Intermediate Assembly File
Infini-D Scene
InstallShield Express File
EIS Spectrum Analyser Project
Internet Explorer Converter
OpenCanvas 2 Event Data
open .ies file

Can't open a .ies file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .ies file association, check the FAQ.

.ies file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .ies file extension, write to us!

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