.LDT File Extension

Luminaire Data File

File extensions are a residue from the DOS days. Mac OS uses substreams to store content types instead. When downloading a file, Mac OS interprets the content type from HTTP headers, not the filename....

General Information

Title LDT File Extension
Extension .ldt
Full Form Luminaire Data File
File Type Data File
Developer Various Lighting Manufacturers
MIME Type text/plain

File Function

Primary Function Store luminaire data
Additional Functions Photometric data storage
Features Standardized, Photometric curve

File Characteristics

Quality Industry standard
Supports Layers N/A
Supports Transparency N/A
Editable Yes

Use Cases

Lighting Design Yes
Simulation Yes
Analysis Yes

Security and Practices

Security Risks Minimal risk
Best Practices Validate data, Update software

Historical/Version Information

Initial Release Varies by manufacturer
Latest Version Per software updates

Associated Types

Similar Extensions .ies, .ldt, .cibse

Software Compatibility

Software Usage Policy OS Compatibility
DIALux Free Windows
RELUX Free Windows
LITESTAR 4D Free, Paid versions Windows