File extension IES (.IES) information

Windows cannot open IES files?

If Windows is unable to open file extension .IES you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .IES file extension identifies an IESNA Photometric File Data which belongs to the IESNA photometric software by Illuminating Engineering Society.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair IES file extension association errors.


  • Performance: To optimize memory and CPU usage for IES files run a free performance scan.
  • Stability: Fix IES errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.