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What do you understand by STP file format?

STP is the short name of Standard for the Exchange of Product model data . A STP file also called an STEP-Physical file and P-21 file. STP is a file format. It is basically used by CAD tool. These files are used to save 3D image data in ASCII format. STP file follows the ISO Standards (International Organization for standardization) to allow CAD (computer aided design) files to easily be shared between different types of CAD programs.

Several file types using the STP file

  • Adobe RoboHelp stop list
  • Analysis Studio project information file
  • SYSTRAN Translation Project Manager project file
  • Microsoft Sharepoint services template
  • NASCAR Racing track picture
  • Fscruiser setup file
  • EC997 Dyno Test steps test
  • Adobe Acrobat Exchange Plug-in
  • Dart Pro 98 system settings file

List of Software that Opens STP file

  • CADSoftTools ABViewer
  • FreeCAD
  • STEP Tools STEP File Browser
  • Dassault Systemes CATIA
  • Autodesk Fusion 360
  • ideaMK STP viewer
  • IMSI TurboCAD Pro 2016

  • Mac:
  • IMSI TurboCAD Deluxe v9
  • FreeCAD
  • Autodesk Fusion 360

  • Linux:
  • FreeCAD
  • Dassault Systemes CATIA

How to open STP file in AutoCAD?

  • STEP1: Firstly goes to Insert Tab and click it, then select Import Panel nad find STEP file.
  • STEP2: Find and choose the STP file you want to import in Auto CAD.
  • STEP3: Click Open it.

Some common errors when trying to open .STP files

  • Corrupt file type association
  • Repair file type association
  • Fix host application installation errors
  • Improperly installed host application
  • File may be corrupt
  • Computer does not have sufficient resources to the currently open the STP file


This article contains information about the file format of STP and its file types and its article aim is to help you understand STP format ,how to open STP file in AutoCAD and some common errors to open an STP file.