What is .STB file extension?
File used by AutoCAD, a CAD program used for 2D and 3D drawing; contains plot styles, or mappings of colors and line weights to drawing objects; stores properties such as color, dither, grayscale, pen number, line weight, fill style, and line start and end styles; used to attach reusable display properties to design objects.
STB files were developed to abstract plot styles from color-based layer styles to object-based property styles, which allows greater flexibility and portability of designs. Color-based styles are defined by .CTB files, and cannot be mixed with STB files in AutoCAD projects.
CTB files may be converted to STB files using AutoCAD.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.