Create an email address for all rows that don't have it


Board Regular
I have an exported excel file from MS ACCESS that is fine but some don't have email addresses, But they are all the same that is, Lastname. (put in a '.')

How can I make a formula that will do this?

Lastname Firstname email
Smit Joe currently blank
Smit Jane
Last edited:


Well-known Member
Assuming that the first name is in column A and last name is in column B: =B1&"."&A1&""


MrExcel MVP, Moderator
Another option
=SUBSTITUTE(SUBSTITUTE(A1,",",".")," ","")&""


Board Regular
Another problem, is the email flips the order. The data in col a is lastname,firstname. but the email address will be firstname.lastname


Board Regular
the substitute did create but ee have to flip the names as well.
Last edited:

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