To export prop files, please follow the steps below:
Click the Export button in the Tool Bar or select the File / Export... (Ctrl + E) item in the main menu.
In the Export As dialog box, key in the file name.
Click the Props radio button. You can accept the default path or click the Browse... button if you desire to export the VNS files to any other target folders.
Use the Max. texture size drop down list to specify the size of the texture maps for exporting.
Click OK button to export the scene as a VNS file.