Please help me fill in the ???? Offset Command ??


LIST= Sheet 2 Column 1
BLOCK=Sheet 2 A1:G1000
A1 is on Sheet 1
Formula is placed on Sheet 1 B1

Vlookup can't be used as duplicate entries may exist in BLOCK column 1

=IF(ISERROR(LOOKUP(A1,list)),"new",???)