thanks for the short-term answer.
if there is a method like one before can calculate how big the AT5 becomes - uncarriage.
The background is a routine if it has extracted the data from a database, has generated Shapes and has exported, start then IMC and packs the AT5 and make a upload.
I split the Shapes already if more than 2 000 000 records exist. If the complete project too largely I would have to divide this still once.
Hence, to determine the question after a fist formula around the size.