Found one file extension association related to 3rd PlanIt and 1 file format developed specifically for use with 3rd PlanIt.
Platform, operating system: Microsoft Windows
Go to: 3rd PlanIt description
Developer: El Dorado Software
Developer / company: El Dorado Software
El Dorado Software's first consumer product, 3rd PlanIt, provides the foundation of our retail product line. 3rd PlanIt offers the model railroad hobbyist the precision of CAD layout in an easy-to-use program, using the power of the computer to accomplish the difficult tasks of alignment, placement and trimming. Automated functions create multiple parallel objects with one mouse movement, connect circles to lines with spiral easements while trimming them to meet end-to-end, and find paths through long and complex trackwork for setting elevations and viewing in profile.
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
3rd PlanIt default file extension associations
Comparison table of actions that 3rd PlanIt can perform with its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of 3rd PlanIt (El Dorado Software), or check out their product website.
File type \ Action