All of
=IF(VLOOKUP($B2,Sheet2!$A1:$AX10,26,0)="","","X")
=IF($B2="","",IF(ISBLANK(VLOOKUP($B2,Sheet2!$A:$GF ,26,FALSE)),"","X"))
=IF(ISERROR(VLOOKUP($B2,Sheet2!$A:$AX,26,FALSE))," ","X")
works fine for me.
Edit: Wasn't aware that the problem had been solved.
|