Creo Simulate > Modeling Structure and Thermal Problems > Properties > Materials > Guidelines and Background > Converting the Material Library File to the Pro/ENGINEER Wildfire 3.0 Format
  
Converting the Material Library File to the Pro/ENGINEER Wildfire 3.0 Format
If you stored a material to a material library file in a release before Pro/ENGINEER Wildfire 3.0, you will probably want to convert the old Creo Simulate material library file to the new material library file. To do so, use the File > Convert pre-Wildfire 3.0 library command in the Materials dialog box to convert the material library defined in Creo Simulate to Creo Parametric material library.
 
* If you have not created new materials in a release before Pro/ENGINEER Wildfire 3.0 release, there is no need to perform conversion of materials using the File > Convert pre-Wildfire 3.0 library command. All materials that were shipped in the releases before Pro/ENGINEER Wildfire 3.0 are available in the material library.