It seems 3D Studio Max supposedly can open IESNA photometric files, so it might be possible to export them to JPG format in it however unlikely that is, because IES are ASCII files with photometric data, not images. Other than that, there is probably no other way how to do it.
Convert IESNA photometric data file to JPEG bitmap image format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert ies to jpg on Windows
A popular 3D animation software, 3ds Max (previously known as 3D Studio Max) is used by professional to create stunning 3D content. It contains modeling capabilities, flexible plug-in architecture, scripting language, etc. It is mostly used by computer game developers. It is also used to create movie visual effects. 3ds Max is only for Microsoft Windows.
Convert from ies file
to jpg file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.