Trying to match fields and return a value

[Guest]

We have a project here that requires some matching of cells and I am not sure
the proper function to use. Here is the problem:

We are trying to match errors in firewall logs to see who is causing
problems on the network. So on Worksheet1 I have a column of names, IP
addresses, and MAC addresses. On worksheet2 I have a list of computer names,
IP addresses, viruses detected, and MAC addresses. What I want to do is
create a new worksheet (worksheet3) that will look at the first 2 sheets and
create a sheet that matches MAC addresses on sheets 1 and 2. The third sheet
should allow me to match a name to MAC address, so on worksheet 3 I would
like to have the following columns(and where data comes from):
Name(worksheet1), IP Address(worksheet2), Computer name(worksheet2), MAC
address(on both sheets, need to match), and number of viruses(worksheet2).
Any thoughts on which formula to use??

 

[Dave Peterson]

Once you get your key column into that third worksheet, it sounds like you'd
want to use =vlookup() or =index(match())

And Debra Dalgleish has some nice instructions (for both) at:

http://www.contextures.com/xlFunctions02.html
and
http://www.contextures.com/xlFunctions03.html

And if that list of MAC addresses is different on each sheet, you may want to
copy from one worksheet, then copy from the second worksheet (right below
it--creating a giant list with some duplicates).

You can get rid of those duplicates by using data|Filter|advanced filter.

Debra also has instructions for that at:
http://www.contextures.com/xladvfilter01.html#FilterUR