LDT Editor is the
tool for viewing and editing basic data
in LDT-files
EULUMDAT (.ldt) files contain important basic data for your lighting design in pure text form. These include parameters such as building dimensions, lamp configuration and luminous intensity. With the free LDT editor you can open LDT- and IES-files and edit the information they contain. The files are then saved as EULUMDAT files, independent of the original file format and integrated into your DIALux lighting design.