Converts a file form one case to another or to mixed case.

Best to supply a file in the case thet printing is wanted in.
Mixed casing is subject to programming rules which do not alwasy match reality.
For address this works wonderful but Names and Companies can be affected.
JOHN MCDONAALD = John Mcdonald vs. John McDonald
or
UMASS BOSTON = Umass Boston vs. UMASS Boston

There are tricks to optimize your label based on your objective.