Hello! 
So, I have an object in which I have fields like first name, last name, email etc which I am importing from a csv using data import wizard . I have another object where I need have some common fields from object1 and some new fields, here I need the users to enter their name but I need them to pick those up from the first name field in object1. Basically what I want to do is create a lookup relationship beteween the 2 objects but based on the particular field, the users should be able to choose their first name from the list that I've imported. I've been trying to figure a way out of this for 2 days but couldn't. Can anyone help?