Plt extension stands for Autocad Plotter files. You may try to open plt files with Autocad software.
These files were created by a drawing software called Autocad. This file is developed for the purpose of transferring to Plotter printer. When you use plt files, you can get large sized outputs in comparison with normal images. The reason of that, it is used for vectorial calculations.You can get Autocad free from official website.
What to use plt
Autocad > Plotter
which page related to plt file
plt Related Searches
You can check related links about plt fileextension.