hi,
thank you.

i mean when i append from excel sheet to nan.dbf at the first time ,i open the nan.dbf an replace at new field for every record falg as 1,2 3...,

if the customer change some price at his excel sheet,i need to append this sheet again to nan.dbf,but the excel customer sheet didn't have field with flag,
when i make new append i lose the (flag data at nan.dbf ),i want to keep this field .

thanks.
best regards
m.qasem