File type: AutoCAD Plotter Document
The PLT file extension stands for AutoCAD Plotter Document. The Autodesk AutoCAD program uses this file extension for the vector graphic plotter files created using the said program.
The files may be printed with the use of plotter that is responsible for printing the images using different lines instead of using dots. The vector-based plotter files or the PLT files are based on the HPGL format.
These files may also be converted into other formats or vice versa, the files not supported by the PLT file extension may also be converted to the same format using some converters such as EFM, HPGL Import for Surfcam 1.0, Butterfly 1.0.6, and others that may be downloaded from the Internet.