About Creating New Files
You create models by building features. To create features, you must first begin a new part. You can create a new sketch, part, assembly, manufacturing model, drawing, format, report, diagram, layout, markup, or interchange file in Creo Parametric using the New and New File Options dialog boxes.
When creating a new object, a template is automatically supplied for any object type supported by a template. You can accept the default template, select another, or browse to a file you want to use as a template.