EdgeCAM parts (.ppf part files) have some:
Properties that you cannot edit - the 'SavedInVersion' property for example.
Properties you can edit to store useful information - the 'Keywords' and 'Comments' properties for example.
To access the properties:
Click the File menu and click Properties.
Work with the properties in the Properties Window.
Note that these properties:
Are available for access in data management systems such as Autodesk Vault, when you archive the part file in the system.
Are accessible via Windows Explorer; right-click on the part file and select Properties.