Opening ULD Files

The ULD file type is primarily associated with DIALUX.

ULD	File extension: ULD
	File type:	data file

What is a ULD file?

ULD files mostly belong to DIALUX. ULD files are used to store lighting design data in a specialized format. They are built on the Microsoft Compound file structure, which allows a single file to contain multiple data streams.
These files include details such as luminaire characteristics and design parameters.

Lighting Data: Holds technical details for luminaire setups.

File Structure: Uses a compound architecture to organize information.

Application: Best managed with DIALUX software. For more details, visit DIALUX.

FilExt.com tip: If you have a ULD file, open it with DIALUX to view and edit the lighting design data.

How to open a ULD file

You need a suitable software like DIALUX to open a ULD file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ULD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ULD file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ULD Text Viewer

Choose your .uld file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert ULD files:

DIALUX
See the previous paragraphs to learn more about the main application. ULD files are often referred to as DIALUX data files because this type of file is primarily created or used by this software.
Procomm Uploaded Files

Technical Data for ULD File Extension

File classification:

Data

Related files:

ldt, ies, ifc, urd, zip, hmm, skr, pkr, dwg, dxf

a uld data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ULD files

Associate the ULD file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest ULD file format. Search, therefore, e.g. on the manufacturer website after an available DIALUX update.
To make sure that your ULD file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ULD file online - secure, fast, and no downloads needed.