Release Notes for IFC 4.3 Extension for Autodesk® Civil 3D® 2025
The IFC 4.3 Extension for Autodesk® Civil 3D® provides commands for importing and exporting IFC files in Civil 3D drawings. Learn more.
What's New
New Features and Enhancements |
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The ISO version of the IFX4x3_ADD2 schema is the default export format. |
Improved performance when exporting from read only drawings. |
Added the ability to insert properties from an external CSV file at Project, Root Element, and Prospector Folder spatial structure levels. |
Added the ability to export AutoCAD Surfaces. |
Added the ability to control CANT Linier Segment options on export to support legacy tools. |
Added the ability to name and define the IFC Object type of a root object container. |
Add the ability to place Civil 3D sites at the root level or within the root object container. |
Alignments with multiple profiles are now nested by default. |
Fixed Issues
Find out what issues have been fixed in Autodesk Civil 3D 2025.
Installation
Who Should Install This Extension?
You can apply this extension to the following Autodesk products running on all supported operating systems and languages. Be sure to install the correct extension for your software.
- Autodesk Civil 3D 2025 or later
General Installation Information
You can use the Autodesk Access application or the Product Update section at manage.autodesk.com to find and install the correct extension for your product. It is recommended that you have the latest available update to Autodesk Civil 3D 2025 applied before installation.
As you prepare to install this extension, keep the following in mind.
Back Up Custom Files
It's recommended that you back up all custom CUIX, MNR and MNL files in Civil 3D before you apply this extension.
Administrative Privileges
To apply this extension, you must have privileges to install and uninstall products. During installation or uninstallation, you may be prompted for the original installation media or a network image.
Network Deployment
Administrators can deploy this extension over a network using the Deployment Wizard.
Close the Application
It's required that you close Autodesk Civil 3D 2025 before proceeding with the installation of this extension.
Reboot
After you install, it is recommended to reboot your system even if not prompted.
About Your Product
After you install, product information is displayed in the About dialog box.
Installation Instructions
Apply This Extension to a Stand-Alone Installation
Follow these instructions to install this extension on a single computer.
- Download the extension and save it to any folder.
- Close all running Autodesk applications.
- Find the folder where you saved the extension and double-click the executable (.exe) file.
Apply This Extension Through a Local Network
Follow these instructions to install this extension on multiple computers using your local network.
- Download this extension and save it to any shared folder on your local network.
- Close all running Autodesk applications.
- Find the shared folder where you saved the extension and double-click the executable (.exe) file.
Apply This Extension to a Network Administrative Image
The following method of distributing IFC 4.3 Extension for Autodesk® Civil 3D® applies only to administrative images created with the Autodesk Civil 3D 2025 Network Installation wizard. After you complete this procedure, any new deployments of Autodesk Civil 3D 2025 will have the extension applied to them automatically. For information on creating and updating a Network Administrative Image, please see Installation for administrators.
To apply the IFC 4.3 Extension for Autodesk® Civil 3D® extension to an existing Autodesk Civil 3D 2025 administrative image:
- Download this extension and save it to any shared folder on your local network.
- Close all running Autodesk applications.
- On the workstation where you initially created the Autodesk Civil 3D 2025 deployment, open the Tools folder and double-click the Create & Modify a deployment shortcut icon.
- Follow the wizard to the product configuration screen and expand the Include additional software accordion.
- In the Additional Software section, click Add and browse to the location where you saved the extension.
- Collapse the Include additional software accordion and click the Create button.
Now any new deployments of Autodesk Civil 3D 2025 will have the extension applied to them automatically.
Uninstall This Extension
This extension can be uninstalled through the Program and Features section of the Microsoft® Windows® Control Panel.
Follow these instructions to uninstall this extension on a single computer.
- Insert the product media (for example, the Autodesk Civil 3D installation media) or make sure the installation source files are available.
- In Windows Control Panel > Program and Features, click on IFC 4.3 Extension for Autodesk® Civil 3D® and choose the Uninstall option.