Hello guys,I need a bit of help! ok, i've been trying to do this without macros, and i'm going nuts.I have 2 workbooks, one with codes that need to be added to the current one I have here. The thing is, I need to check and copy the new codes to our current workbook, but i've been doing it manually.. and it's driving me nuts.I don't really know how to use Vlookup between different workbooks, so what i've done is, make a new worksheet, copy both updated (Column A) and current codes (Column B) and I was checking one by one, and putting the ones in a column of codes that need to be added. (column C) and it's a long list.So, how can I make a quick thing like If column A has codes that doesn't exist in column B, Copy them to Column C.I know it's a mess, but i need to do this fast and work in a permanent or long term solution later.Thanks for the helpIs there a quick fix for this?