check digit

Hi,
Anybody knows the “check digit” bar code code. Plz send me.

Hi Srikanth,

Could you offer a bit more information about what your issue is? Your original question didn’t give us much to go on.

Thanks,

This is what we use in excel

=IF(OR($A1="",$B1="")=TRUE,"",CEILING((SUMPRODUCT(MID(($A1&$B1),{1,3,5,7,9,11},1)*1)*3)+SUMPRODUCT(MID(($A1&$B1),{2,4,6,8,10},1)*1),10)-((SUMPRODUCT(MID(($A1&$B1),{1,3,5,7,9,11},1)*1)*3)+SUMPRODUCT(MID(($A1&$B1),{2,4,6,8,10},1)*1)))

Where A1 is the 6 digit prefix and B1 is the 6 digit suffix