The LDS file might be a Laser data file, a digital system that uses Light Detection and Ranging (LiDAR) technology to acquire topography data. Developed by Applied Imagery, the LDS laser data is normally used in geographic information systems (GIS) alongside software like Quick Terrain Modeler for analysis. You can view or convert these types of files using Applied Imagery Quick Terrain Modeler, which is probably the best option available as of now.

The LDS file can also be Lucy's Document Structure file, a model used by the software application Lucy. This system leverages AI technology to develop organizational models for a business. These files can be opened and viewed using Lucy Enterprise AI Assistant. This AI platform offers various operations like conversational AI, workforce training and ongoing content management, thus taking care of business efficiency driven by data.

Lastly, the LDS file may often be implemented as a Mozilla Application Description file. This is an integral part of the Mozilla application bundle that was used in older versions of Firefox and is associated with XULRunner's RDF component. Contemporary software such as Mozilla's Firefox browser can open these files, but due to deprecation, it's less commonly seen these days.

To summarize, it's important to verify the software or application associated with the LDS file before trying to open them. As these files might be used by different software applications for different purposes, you may encounter difficulties if you don't have the corresponding software or application. If you continue to have trouble opening these files, feel free to consult the parent software's customer support. For files that belong to data-rich software systems, it might be beneficial to invest in learning how to properly utilize them to their fullest extent.