alphabetical list of extensions

File extension .STP

File description

Files with the STP file format generally holds the 3-D assembly files in the 3D product model data exchange file format. Such files mainly contain the 3-D object data. The STP files are supported by numerous mechanical design applications. 

The files that come up with the STP file format is generally saved in the text based ASCII format and also comprises of STEP ISO program protocols. Such files are normally utilized to exchange the 3D data between various CAD systems. 

Description of the problem
If you have on your computer a .STP file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .STP extension. Directly on this website you can find a solution of the most common problem with the .STP file – that you do not have on your computer the appropriate program to open the file.
Solution
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .STP file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Category
3D Image Files
Developer
N/A
Popularity
StarStarStarStar
File name: STEP 3D CAD File
Programs that will open this file:
Windows
Windows
3D Object Converter 3D Object Converter
AutoCAD AutoCAD
CATIA CATIA
Creo Parametric Creo Parametric
FreeCAD FreeCAD
STEP File Browser STEP File Browser
STP Viewer STP Viewer
TurboCAD TurboCAD
ZEMAX ZEMAX
Mac OS
Mac OS
FreeCAD FreeCAD
TurboCAD TurboCAD
Linux
Linux
CATIA CATIA
FreeCAD FreeCAD
Android
Android
Fusion 360 Fusion 360
iOS
iOS
Fusion 360 Fusion 360
Windows Phone
Windows Phone
Fusion 360 Fusion 360
Category
Data Files
Developer
Appricon
Popularity
StarStarStar
File name: Analysis Studio Project Information File
Programs that will open this file:
Windows
Windows
Analysis Studio Analysis Studio
Category
Web Files
Developer
Microsoft
Popularity
StarStar
File name: SharePoint Template
Programs that will open this file:
Windows
Windows
Microsoft Office SharePoint Server Microsoft Office SharePoint Server
Microsoft Windows SharePoint Services Microsoft Windows SharePoint Services
Category
Data Files
Developer
Adobe Systems
Popularity
StarStar
File name: RoboHelp Stop List File
Programs that will open this file:
Windows
Windows
Adobe RoboHelp Adobe RoboHelp
Remember!
The .STP file extension can correspond to several not related file formats. If there is more than one file format with the .STP extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .STP file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .STP file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .STP file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .STP file, so download the update and check again.

2. Incorrect .STP file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .STP file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.