.stp
?STEP 3D CAD File
- :STEP 3D CAD File
- :Dassault Systemes
- :
- :Pliki obrazów 3D

MAC OS
IMSI TurboCAD Deluxe v5

Linux
Dassault Systemes CATIA
LKSoft IDA-STEP
.stp
?Analysis Studio Project Information File
- :Analysis Studio Project Information File
- :Appricon
- :
- :Pliki danych

Windows
.stp
?SharePoint Template
- :SharePoint Template
- :Microsoft
- :
- :Pliki internetowe