STP File (What It Is and How to Open One) - Lifewire
www.lifewire.com › stp-file-4150703Apr 6, 2023 · How to Open an STP File There are a number of software programs that can open STEP 3D CAD files, but Autodesk Fusion 360 is the most versatile since it runs on Windows, macOS, and mobile devices, as well as through a web browser. Some other programs that work with this file format include FreeCAD, ABViewer, TurboCAD, CATIA, and IDA-STEP.
FREE Step file Viewer - STP Viewer 2.3
stpviewer.comSTP Viewer is a software tool for viewing international STEP standard files. STEP files (.stp) for 3D and assembly are often used by all major mechanical CAD systems. With our absolutely free STP Viewer you can easily open 3D files (*.stp), rotate them and perform some basic actions like: zoom, rotate, move or change skin.