C3D File viewer (MLSviewer) A fully functional C3D file viewer written by Motion Lab Systems that runs on any Windows computer. It allows the user to view the parameter structure, analog data values and 3D data values stored in any C3D file up 32,767 frames long without any risk of modifying or changing the contents of the C3D file in any way. Get a free DWG viewer to view, open, edit and convert.dwg files, the native file format for AutoCAD files. DWG Trueview includes DWG TrueConvert.
- May 28, 2019 Publish and share your designs online with our 3D viewer for Mac. Xuver is available for Mac OS users in just a few simple steps. As this is the first in-browser visualization platform, no complicated downloads are needed to get started. The only step to take is converting your file format into a.xr (Xuver) file, which can be uploaded into our.
- Apr 21, 2021 C3D File viewer (MLSviewer) A fully functional C3D file viewer written by Motion Lab Systems that runs on any Windows computer. It allows the user to view the parameter structure, analog data values and 3D data values stored in any C3D file up 32,767 frames long without any risk of modifying or changing the contents of the C3D file in any way.
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1st Method: Open it in another program.
When you double-click C3D files, your computer attempts to open it in a program associated with C3D files. If there’s no program associated with C3D files on your computer, the file won’t open. To open the file, download one of the most popular programs associated with C3D files such as Cult3D Designer Intermediate File, Coordinate 3D, or Chem3D Chemical File.
2nd Method: Take a hint from the file type.
The C3D file extension usually indicates it's under the umbrella of Data Files. However, if it’s another file type, it might not open with one of the programs listed above. Take the following steps to find the file type:
- Right-click the file.
- Click “Properties” (Windows) or “More Info” (Mac).
- Locate the file type under either “Type of File” (Windows) or “Kind” (Mac).
3rd Method: Check with the developer.
So you’ve tried using a different program, you’ve confirmed the file type, and your C3D file still won’t open. Even if these methods were unsuccessful, you might still be able to reach out to a software developer for help. Use the chart below to find the developer for each of the programs mentioned above and contact them directly for assistance.
| Software | Developed By |
|---|---|
| Cult3D Designer Intermediate File | Unknown |
| Coordinate 3D | PC Software Company |
| Chem3D Chemical File | CambridgeSoft Corporation |
| Micrografx | PC Software Company |
4th Method: Open it in a universal file viewer.
If the developer isn’t able to help, a universal file viewer probably can. File Magic (Download) and similar programs are designed to open a wide variety of file formats, including C3D files. Some aren’t compatible and will only open in binary. Download File Magic now to open you C3D and hundreds of other file types with one program!
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Self-Configuration
NCBI's web servers send data to Cn3D using the MIME type application/vnd.ncbi.cn3d. (Up to version 4.3, Cn3D used the MIME type chemical/ncbi-asn1-binary.) Many modern browsers will let you choose an application when downloading a file with a new MIME type for the first time. If your browser gives you an option to 'open with,' point it to the Cn3D application in the folder where you installed Cn3D 4.3.1. You will often also be given an option to automatically launch that application in the future.
To test whether your configuration is working after installing Cn3D, click on the image below, which should launch Cn3D 4.3.1 and should show a structure and viewpoint very like what's shown in this image:
If Cn3D 4.3.1 does not launch via the test image, look below for hints on how to set up specific browsers. You may need to consult your system administrator for help.
Configuring Internet Explorer
On Windows, this should be done by the installer. If not, you'll need to set up a new file type in Explorer that associates the extension '.cn3' with the MIME type application/vnd.ncbi.cn3d and the Cn3D.exe application. (Up to version 4.3, Cn3D used the MIME type: chemical/ncbi-asn1-binary. As of version 4.3.1, Cn3D uses the MIME type: application/vnd.ncbi.cn3d. For users upgrading to version 4.3.1, it may be necessary re-associate the .cn3 file extension with this new MIME type.)
Configuring Firefox
Firefox allows you to configure a 'download action' to automatically open the downloaded file in Cn3D by checking the 'Do this automatically for files like this from now on' box in the download dialog window. (See https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file for details.) To subsequently change this behavior in Firefox (or reconfigure it to open in Cn3D 4.3.1 instead of an earlier version), go to its File:Preferences panel, and select the Applications tab. In the Content Type column, click on the action corresponding to .cn3 files and select an alternative action from the pulldown menu.
Note to Macintosh Users:
Configuring helper applications on browsers under OSX seems to be difficult or impossible. In particular, Safari has no mechanism at all for configuring helper applications. This behavior is a considered a security feature on Mac computers, and not particular to Cn3D. However, you should be able to save data files to the desktop or a download folder and either a) drag & drop files onto the Cn3D icon, b) Ctrl-click on the .cn3 file and select Cn3D.app from the 'Open With' popup menu, or c) double-click on the .cn3 file (if the file-type association has already been established) to launch it manually.