Hello , I made some test with autoincrement field : DBCREATE(cDbfFile , {{"ID","+",10,0}} , "DBFCDX" , .T. ) DBG DbStruct() // gives ID , + , 4 , 0 ? FieldLen("ID") // 4 WHY TRUNCATED TO 4 ????????????????????????? FOR i := 1 TO 10001 DBAPPEND() NEXT ...