.LDT File Recovery

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .LDT file recovery guide for Windows, MacOS, Android and IOS in 2024.

LDT File Recovery
Data Recovery Tool

What is a .LDT file?

Light fixture, or luminaire, data file used by DIALux, a professional light planning software for indoor and outdoor lighting; stores lighting parameters for a luminaire, which include the number of lamps, the light intensity, the light distribution curve, and the size of the luminaire.

What Are Common Causes of ".LDT" Files Lost or Failure?

There can be several common causes for ".LDT" files lost or failure. Some of the most common causes include:

  1. Accidental deletion: Users may accidentally delete ".LDT" files while organizing or cleaning up their computer system, resulting in the loss of important data.
  2. Software or hardware issues: Problems with software or hardware components can lead to ".LDT" file corruption or failure. This can occur due to system crashes, power outages, software conflicts, or faulty hardware.
  3. Virus or malware infection: Viruses or malware can infect and corrupt ".LDT" files, making them inaccessible or causing data loss.
  4. File system errors: File system errors, such as disk errors or bad sectors on the storage device, can cause ".LDT" files to become corrupted or lost.
  5. Improper file transfer: If ".LDT" files are not transferred properly between devices or storage media, they may become corrupted or lost during the transfer process.
  6. Operating system issues: Errors or malfunctions in the operating system can result in ".LDT" file loss or failure. This can occur due to system crashes, software bugs, or compatibility issues.
  7. Human error: Human errors, such as accidental formatting of storage devices, improper handling of files, or failure to backup important data, can lead to ".LDT" file loss.

It is important to regularly backup ".LDT" files and take preventive measures to minimize the risk of data loss or file failure.

How to recover lost ".LDT" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".LDT" file may be deleted.

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🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".LDT" file is always to create it once more.

Use programs for recovering ".LDT" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".LDT" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

Partition Recovery™ 4.9
The tool recovers data from any devices, regardless of the cause of data loss.
Download

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software

  3. Double-click on the disk from which you need to recover ".LDT" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type

  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored

  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan

  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery

  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".LDT" extension?

Looking for how to open a stereo eulumdat Formatted Luminaire Data File image file file?

Programs that open ".LDT" files

Windows
DIAL DIALux DIAL DIALux
DIAL LDT Editor DIAL LDT Editor
ReluxSuite ReluxSuite

Additional Information

  • File type: Eulumdat Formatted Luminaire Data File

  • File extension: .LDT

  • Developer: DIAL

  • Category: CAD Files

  • Format: Text

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Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 16:30 #
    Leave a comment if you have any questions about Recovering lost .LDT files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

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Questions and answers

  • What is the file format .LDT and what does it typically represent?

    The .LDT file format stands for "Laser Data Transfer" and is commonly used in the lighting industry. It is a standardized file format developed by the International Commission on Illumination (CIE) for transferring photometric data of luminaires.

    Typically, .LDT files represent the photometric data of a specific lighting fixture, providing information about its light distribution, intensity, and other characteristics. These files contain detailed measurements and calculations that allow lighting professionals to accurately analyze and simulate the performance of luminaires in various lighting design software applications.

  • How can I open a .LDT file and what software or tools are required for it?

    To open a .LDT file, you will need software or tools that are specifically designed for handling this file format. .LDT files are typically used in the lighting industry and contain data related to luminaire photometry, such as light intensity, distribution, and color.

    Here are a few software options that can open .LDT files:

    1. Dialux: Dialux is a popular lighting design software that supports .LDT files. It allows you to import .LDT files and use them for designing and analyzing lighting systems.
    2. Relux: Relux is another lighting design software that is compatible with .LDT files. It provides tools for importing and working with .LDT data to create lighting simulations and designs.
    3. AGI32: AGI32 is a comprehensive lighting analysis and design software that supports .LDT files. It allows you to import .LDT files and use them for creating detailed lighting calculations and visualizations.
    4. Photometric Toolbox: Photometric Toolbox is a software tool specifically designed for working with photometric data, including .LDT files. It provides various analysis and visualization features for lighting professionals.

    These software options are widely used in the lighting industry and offer additional features beyond just opening .LDT files. Depending on your specific requirements and preferences, you can choose the software that best suits your needs.

  • Are there any specific applications or industries where .LDT files are commonly used, and what are some potential use cases for this file format?

    .LDT files are commonly used in the lighting industry for the exchange of photometric data. They contain information about the distribution of light from a luminaire, including intensity, beam angle, and other photometric properties. Some specific applications and industries where .LDT files are commonly used include:

    1. Architectural lighting design: Lighting designers use .LDT files to analyze and simulate the lighting effects of luminaires in architectural spaces. This helps in creating optimal lighting designs for various applications such as residential, commercial, and outdoor environments.
    2. Industrial lighting: .LDT files are used in the design and planning of lighting systems for industrial facilities such as factories, warehouses, and production areas. They help ensure appropriate lighting levels, uniformity, and energy efficiency.
    3. Street lighting: Municipalities and transportation authorities use .LDT files to evaluate and plan street lighting installations. These files enable the analysis of light distribution, illuminance levels, and uniformity on roadways and pedestrian areas.
    4. Stage and entertainment lighting: Lighting designers in the entertainment industry utilize .LDT files to simulate and visualize the effects of stage lighting fixtures. This helps in designing captivating lighting setups for concerts, theaters, and other live events.
    5. Outdoor and landscape lighting: .LDT files are used by designers to plan and assess the lighting of outdoor spaces, including parks, gardens, and public areas. They aid in creating visually appealing and safe environments.

    Potential use cases for .LDT files include:

    • Comparing and selecting luminaires: Lighting designers can use .LDT files to compare the photometric performance of different luminaires and select the most suitable ones for specific applications.
    • Lighting calculations and simulations: .LDT files are used in lighting software to perform calculations and simulations for illuminance, luminance, glare, and other lighting parameters. This helps in evaluating the performance and compliance of lighting designs.
    • Energy efficiency analysis: By analyzing .LDT files, energy auditors and consultants can assess the energy efficiency of lighting systems and propose improvements to reduce energy consumption and costs.
    • Compliance with lighting standards: .LDT files are essential for verifying compliance with lighting standards and regulations. They enable designers to ensure that lighting installations meet required illuminance levels, uniformity, and other performance criteria.

    Overall, .LDT files are crucial for the accurate representation and analysis of light distribution from luminaires, supporting various aspects of lighting design, planning, and evaluation.
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