Extra space appearing when Name field is exported

We are having an issue where an extra space is appearing in the Name field of certain Individual records, between the First and Last Names, when exported into excel (CSV, 2000 or other). The extra space appears in neither the exported First or Last fields. And the extra space is not present in the actual constituent record either.

Many of these records are created via a plugin from a wordpress CMS to "Gift batches" module in NXT--but not all!

Any ideas on why this is happening and how it might be addressed?

Thanks!

Peter