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Eulumdat_3D the better Eulumdat viewer and editor.
You can view ldt files as 3D ,compare two luminaires, print a simple datasheet. From given light distribution you can create different ldt files depending on light flux and CCT
also as app under https://play.google.com/store/apps/details?id=com.riloc.eulumdat
QLumEdit is an ultimate open-source Eulumdat file editor. You can create new files from templates, edit existing files, validate large number of Eulumdat files by simple click and export all data to HTML/PNG.