Hi All 
Not new to Excel but I've only ever used it for very basic things so need some advice please.
I have 3 sets of data. Each set has a company name.
Set 1 of data is the master set with all company names but no emails.
Set 2 and set 3 have only a few companies but they have some email addresses with them.
I need to transfer the email addresses from set 2 and 3 into set 1.
Doing this manually will take a very long time so I am wondering if there's a way to do it in bulk? If this forum allows uploads I can upload a data set.
Thanks in advance.

Not new to Excel but I've only ever used it for very basic things so need some advice please.
I have 3 sets of data. Each set has a company name.
Set 1 of data is the master set with all company names but no emails.
Set 2 and set 3 have only a few companies but they have some email addresses with them.
I need to transfer the email addresses from set 2 and 3 into set 1.
Doing this manually will take a very long time so I am wondering if there's a way to do it in bulk? If this forum allows uploads I can upload a data set.
Thanks in advance.