.STP File Extension

.STP File Extension

File Type 1

STEP 3D CAD File

Developer N/A
Popularity
3.6  |  161 Votes
Category 3D Image Files
Format Text

What is an STP file?

An STP file is a 3D assembly file supported by various mechanical design programs, such as IMSI TurboCAD and Autodesk Fusion 360. It contains three-dimensional object data saved in the Standard for the Exchange of Product Data (STEP) format. STP files are saved in a text-based ASCII format that conforms to the STEP Application Protocols ISO 10303-2xx.

More Information
Screenshot of a .stp file in Autodesk Fusion 360 2.0
STP file open in Autodesk Fusion 360 2.0

The STEP file format is a standardized 3D model format that engineers can use to save and transfer 3D models between different computer-aided design (CAD) and computer-aided manufacturing (CAM) programs. Prior to the STEP format's existence, users of one program often could not open models created in another program, making it difficult to share 3D models among users.

Most STEP files are saved with the .stp file extension. You may also encounter STEP files saved with the .STEP extension. In both cases, the files contain plain text data that a CAD or CAM program uses to load a 3D model. For example, many STP files contain data used to show a model of a manufactured mold or part.

How do I open an STP file?

You can open an STP file in a variety of CAD programs, including Autodesk Fusion 360 (cross-platform, FreeCAD (cross-platform), IMSI TurboCAD (Windows, Mac), and Dassault Systemes CATIA (Windows, Linux).

For example, to open an STP file in Autodesk Fusion 360:

  1. Select File → Open... from the program's menu bar.
  2. When the Open window appears, select Open from my computer....
  3. Navigate to and open your STP file.
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Programs that open STP files

Updated April 23, 2021
File Type 2

RoboHelp Stop List File

Developer Adobe Systems
Popularity
2.6  |  16 Votes
Category Data Files
Format Text

What is an STP file?

Plain text file created by RoboHelp, a Windows help authoring program; saves a stop list which contains keywords that the Smart Index wizard ignores when creating the help documentation search index; can only be 512 characters long; created as part of a RoboHelp project (.XPJ).

More Information

Stop lists usually contain words such as "the," "or," and "a." These are words that typically aren't useful to index as keywords for help documentation searches.

Programs that open STP files

Windows
Free Trial
Updated August 8, 2012
File Type 3

SharePoint Template

Developer Microsoft
Popularity
2.1  |  10 Votes
Category Web Files
Format N/A

What is an STP file?

Website template created for Microsoft SharePoint, a Web-based collaboration program; contains a predesigned website that can be loaded from the SharePoint template gallery; used as a starting point for creating new websites.

More Information

To create an STP file, click "Site Settings." Then, under "Administration," choose "Go to Site Administration." Under Management and Statistics, select "Save site as template."

NOTE: SharePoint STP files only contain information about what is customized in the site. They do not include the complete definition of the website.

Programs that open STP files

Windows
Microsoft Office SharePoint Server
Updated November 4, 2009
File Type 4

Analysis Studio Project Information File

Developer Appricon
Popularity
1.4  |  7 Votes
Category Data Files
Format XML

What is an STP file?

An STP file contains project information created by Analysis Studio, a program used for data mining and statistical analysis. It stores the actions, data transformations, and variables that allow a data set to be reconstructed from an original data set. STP files are saved in an XML format.

More Information

When Analysis Studio is in online mode, data may be downloaded and reconstructed from a remote Analysis Server. When in offline mode, .DATA files stored on the local machine are used.

NOTE: Appricon no longer develops Analysis Studio.

Programs that open STP files

Windows
Appricon Analysis Studio
Updated December 9, 2020

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