What do they mean when they say you can't create new fields? Does that mean no new fields in SalesForce, or do they mean you can't add any new columns to Excel that would have the data they are looking for. For example, for Explorers, the fields it is asking for are First Name and Last Name, but we only have a full name. If I split it up, then wouldn't I be creating a new field in Excel?

What do they mean when they say you can't create new fields? Does that mean no new fields in SalesForce, or do they mean you can't add any new columns to Excel that would have the data they are looking for. For example, for Explorers, the fields it is asking for are First Name and Last Name, but we only have a full name. If I split it up, then wouldn't I be creating a new field in Excel?