some questions on the dbf files...

[pinkegobox]

in PLAYERS.DBF what is :

SCRATCH1,2,3
CARRERPKG what mean the letters A->D ?
ENVELOPE
rookiepkg
rookvalue
rookierank
rookiernk2
rookstr1,2,3
rookweak1,2,3
gradclass
salary2 , salary3
salarytm2 , salarytm3

hope you can help me i'm trying to test it on a franchise mode basis but it's very hard to see some changes...