The .plt file extension is most commonly associated with the Autodesk AutoCAD software application. The PLT files that are used by this software contain vector graphic plotter files that have been created by the applications.
Other applications also use the .plt extension for plotter files, such as the HP Graphics Language and OziExplorer software applications.
PLT files can be printed using a plotter. A plotter draws images using lines instead of printing dots like a normal printer.
The .plt file extension is also used by Bentley's CAD MicroStation application. This application uses the .plt file suffix for plot driver configuration files.
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