To Import an NX Part or Assembly
1. Click > 
Open. The File Open dialog box opens.
Open. The File Open dialog box opens.2. Select NX File (*.prt) in the Type box. You can also set the file type to All Files (*), Creo Files (.prt, .asm, .drw, .frm, .mfg, .lay, .sec, .dgm, .rep, .mrk, .int, .g, .cem), or Part (*.prt).
3. Select an NX .prt file from the current directory or browse to select the NX file from another location.
 | The File Open dialog box is set to Open by default and you can open the NX file as a non-Creo model by default. |
4. Select Import in the File Open dialog box.
◦ The Import New Model dialog box opens.
◦ Model type is automatically set to Part or Assembly based on the contents of the selected file. You can override the default setting of Part and change it to Assembly, but you cannot change a default setting of Assembly to Part.
◦ Enable ATB is selected by default.
◦ For parts, the generic import name is generated for the import model name. The import model cannot be given the same name as the NX file because NX and Creo Parametric models share the same file extension.
5. If you do not want to retain the import profile in use, select an import profile from the Profile list. If you want to customize the import profile settings, click Details to open the NX - Import Profile editor.
6. Click OK in the Import New Model dialog box. The model is imported as a Translated Image Model (TIM). The Model Tree displays the TIM icon for the imported part or assembly and the import log file is automatically generated in the working directory.