Files with uld suffix can be mostly found as special light data files saved in Unified luminaire data format.

Detailed description

Software that open uld file

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ULD file extension - Unified luminaire data file

What is uld file? How to open uld files?

File type specification:

Various data file type icon Various data file type

File extension uld is mainly used for a special Unified luminaire data format used by DIALux 2 or higher.

Only the Project partners of DIALux are able (and allowed) to create this format. It includes all the information about the fixture (light distribution, possible equipment, fotos, text, 3D geometry,...).

The default software associated to open uld file:

DIALux picture or screenshot

DIAL GMBH logoDIALux  Microsoft Windows software

Company or developer:

DIALux. The free and complete software developed by us for professional light planning is open to luminaires of all manufacturers. A software by planners for planners. Used by many hundredthousands of light planners and designers worldwide. 

Help how to open:

Use DIALux to open and load up .uld files.

How to convert:

It is unlikely that this type of .uld files can be converted to anything else.

List of software applications associated to the .uld file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open uld file, edit uld file, convert uld file, view uld file, play uld file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting uld files.

Software that open uld file - Unified luminaire data file

Programs supporting the exension uld on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about DIALux for open uld file action.

Microsoft Windows:

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