duplicate data

[Guest]

hi
i want creat a macro that find duplicate data and not allow to download, i
means everyday i am downloading data from web and i am keeping in my
spreadsheet (i'm copying from web then doing paste in my sheet) and now i am
facing problam that duplicate data dowloading again and again, i want find
duplicate by A:A becoz there is Ref# always, my data range is A_col H_col ,
hopefull you got what i want say or what i want to make.

Thanks

 

[Guest]

ok, maybe there isn't any way that i haven't get any post, ok then any other
way to find out from my selection duplicate then delete those column ?
selection would be A:A

thanks in advance .