need help with adding card pictures

so i just downloaded some sets to add.but when i add them using the importer it identifies them as yet unsupported cards.
i've seen that it was previously suggested to add a ".full" at the end of each pictures but thats very time consuming.is there a faster way to import the pictures or to add the ".full" at the end?
thanks everyone
i've seen that it was previously suggested to add a ".full" at the end of each pictures but thats very time consuming.is there a faster way to import the pictures or to add the ".full" at the end?
thanks everyone