Question: where are ctb files located in autocad 2017?
Answer: This is the standard path to the plot styles. C:\Users\USERNAME\AppData\Roaming\Autodesk\AutoCAD LT 2017\R23\enu\Plotters\Plot Styles. You can open this file location within AutoCAD LT by going to Options>Plot and Publish Tab. Select PlotStyle Table Settings and then Add or Edit Plot Style Tables.