The File Extensions Database

.STB File Extension

  • Developer by: Autodesk
  • Category: Settings Files
  • Format: Binary

What is an .STB file?

.STB is AutoCAD Plot Style Table File

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.

Programs that open AutoCAD Plot Style Table File
Autodesk AutoCAD 2018

How to solve problems with STB files

  • Associate the STB file extension with the correct application. On :
    Windows: Right click on any STB file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.STB files". Mac: Right click (or Ctrl-click) the STB file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .STB is AutoCAD Plot Style Table File. Because only the current version supports the latest STB file format. Search, therefore, e.g. on the Autodesk manufacturer website after an available .STB is AutoCAD Plot Style Table File update.
  • To make sure that your STB file is not corrupted or virus-infected, get the file again and scan it with antivirus software.