I have two text columns A and B. Column A contains names and B contains
e-mail addresses. The first part of the e-mail address in B (before the
@) is sometimes the same or somewhat similar to the name in A, and
sometimes completely different:

A B
1 steve
2 colin
3 john

I want to keep only those rows in which the name and the first part of
the e-mail (before the @) partially or completely match (in the above
example, I want to keep rows 1 and 2 and delete row 3).

Can I do it in Excell XP?