Extract text from Lighting data files (LDT)
To convert LDT Lighting files to another format, you need DIALux or other Data software.
To convert other file formats to the "Photometric Data File" file type, you need software like DIALux or a similar tool.
The .ldt file format is primarily an EULUMDAT file used in the lighting industry to store photometric data. It defines the physical dimensions, lamp type, power consumption, and luminous intensity distribution of a light fixture. A secondary but major use of the .ldt extension is the Labordatentransfer (LDT) standard, a structured format for transferring medical laboratory data in Germany. Other minor uses include Tekna CNC machining profiles and game data for the La Tale MMORPG.
EULUMDAT files are typically opened with specialized lighting design software such as DIALux, Relux, or the dedicated LDT Editor by DIAL GmbH. Medical LDT files are imported by German healthcare management systems.
The core disadvantage of the .ldt format is its highly specialized nature. Standard text editors can open EULUMDAT or medical LDT files, but the raw data is formatted in an archaic, fixed-width or specific delimited structure that is unreadable without parsing software. Lighting manufacturers often distribute .ldt files, but sharing these directly with clients or non-specialized architects is problematic because they cannot view the light distribution curves or data tables without installing heavy simulation software. Furthermore, many generic 3D architectural rendering engines do not support the European EULUMDAT format natively.
To use lighting data in standard 3D rendering engines (like V-Ray or Blender), convert .ldt to ies, the widely supported North American standard. For reviewing raw data or performing spreadsheet calculations, convert to csv or xml. If you need to present light distribution charts and photometric values to a client, convert to pdf for a universally readable, fixed-layout document. Drop your file here to analyze and convert it securely right in your browser.
Convert.Guru analyzes your LDT file, detects the exact format, and lets you read the text inside.
Users also converted LTD, IES, IDT, ULD, ZIP, LDTX, ROLF, PDF, LTD_, ODT, TXT, RAR and LBT files.
If you want to convert LDT file to IES, PDF, ULD, DWG, DXF, DGN, RVT, RFA, SKP, 3DM, STEP or IGES, you can use DIALux or similar software from the "Photometric Lighting Data Storage" category. In the File menu, look for Save As… or Export….
To convert SLDASM, DGN, PRT, IAM, X_B, CATPRODUCT, SLDPRT, RVT, ASM, DWG, CATPART or DXF files to LDT, try DIALux or another comparable tool in the "Photometric Lighting Data Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LDT converter.