Files with pl extension are used by the BRL-CAD software. They contain some graphics plots.
PL file extension - BRL-CAD 2D and 3D plot file
What is pl file? How to open pl files?
File type specification:
The pl file extension is associated with the BRL-CAD solid geometry modeling package developed by the U.S. Army Research Laboratory.
The package includes a large collection of tools and utilities including an interactive geometry editor, raytracing and generic framebuffer libraries, a network-distributed image-processing and signal-processing capability, and an embedded scripting language.
The .pl file stores 2D, or 3D plots.
The default software associated to open pl file:
Company or developer:
BRL-CAD Development Team and US Army
BRL-CAD is open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools etc.
List of recommended software applications associated to the .pl file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open pl file, edit pl file, convert pl file, view pl file, play pl file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with pl file - BRL-CAD 2D and 3D plot file
Click on the software link for more information about BRL-CAD. BRL-CAD uses pl file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).