1. A smart card comprising: a processor having a command set; and a memory for storing (1) a first file, (2) a first attribute table associated with the first file and with the commands of the command set, and (3) computer code for: determining a position in the first attribute table corresponding to a command of the command set to be modified, and modifying an attribute at the position in the first attribute table corresponding to the command of the command set to be modified without modifying any other attributes in the first attribute table.