File Extension Search

.stp File Extension

Developer: N/A
File type: STEP 3D CAD File
You're here because you have a file that has a file extension ending in .stp. Files with the file extension .stp can only be launched by certain applications. It's possible that .stp files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .stp file?

A STEP 3D CAD file is generally classified as a 3D image file, and these STEP 3D CAD files are integrated with encoding specifications used for the STP file format. The text formatting standards implemented into these STEP 3D CAD files are also compliant to STEP Application Protocols ISO 10303-2xx. These STEP 3D CAD files are specifically known as 3D assembly data comprised of digital 3D elements used for mechanical CAD designs. These STEP 3D CAD files are saved in the STP file format and are appended with the .stp extension. These STEP 3D CAD files are also considered as 3D product model data exchange files by mechanical CAD applications implemented with support for these STP files. The Inventor Fusion CAD software was developed by Autodesk and is implemented with support for these STP files. This means computers running on Microsoft Windows-based systems can be used to install the Inventor Fusion CAD program to implement support into the system for creating, opening and viewing the content of these STP files.

how to open a .stp file?

Launch a .stp file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .stp file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .stp files aren't yet associated with it. In this case, when you try to open a .stp file, you can tell Windows which application is the correct one for that file. From then on, opening a  .stp file will open the correct application. Click here to fix .stp file association errors

applications that open a .stp file



FreeCAD is a Website that provides a directory of free programs for CAM, CAE and CAD that are that are categorized according to application. Each category is clickable, and contains the list of programs with the corresponding links to download them, names of the vendor or developer and links to their Websites, and a description of the program. There are 19 categories and 709 links. The categories are Analysis Utilities, AutoCAD Utilities, CAD Converters, CAD Parts and Libraries, CAD Programs – Windows, CAD Services, CAD Viewers, CAM Programs, FEA Programs, Miscellaneous, Architectural Programs, CAD Accessories, CAD File Management, CAD Programs- Mac, CAD Programs – xNIX, CAD Utilities, CAE Programs, EDA Programs and MCAD Programs. A link is also given to new files in the last 10 days.
Dassault Systemes CATIA

Dassault Systemes CATIA

Dassault Systemes CATIA is an application that was programmed using C++. This software is used to design aircrafts, such as the mirage jet fighter. The CATIA program can be used in designing automotives, ships, plant designs and packaged goods. It can also be used in architecture, life science, construction, designing of new gadgets and industrial equipment. Catia can render 3D parts, sheet metal, tooling parts of mechanical assemblies in every detail, and this software aids in intelligent engineering systems. This software runs in Microsoft platforms like Windows Xp, Windows Vista and Windows 7. The Hard Drive should have at least 2 GB of available storage space.

a word of warning

Be careful not to rename the extension on .stp files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .stp. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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