Creo ModelCHECK > checks > FORMAT_NAME (Drawing Format Name)
  
FORMAT_NAME (Drawing Format Name)
Y/N/E/W
Checks that the drawing format is from the standard list of acceptable formats. Standard formats are defined by the DRW_FORMAT start configuration option. If the drawing does not have a format, Creo ModelCHECK prompts you to add one.
Suggested Settings:
Inter
Batch
Regen
Save
W
W
N
W