Download the plugin and install U3d Importer plugin for Creo.
Run Creo and Load a model.
Open tool button, Simlab ribbon, click Import.
It contains following three ribbons as shown in the image below.
For the first time a user will need to register the plugin's license, Trial or Professional. This can be done by clicking the Export or Register options in the plugin's sub-menu. For a
step by step instructions on how to register a license, please click here.
Now select the Import option and start importing (*.u3d) files into Creo.
You can request a free trial for using all features of the plugin. Trial license works for 30 times or two weeks (which ends first).