This dialog provides a warning that some names in this spreadsheet are
currently being used in other open spreadsheets. This can cause problems
in the statistical calculations, as the data in a structure using a duplicated
name will change as the focus moves amongst the different spreadsheets.
You should rename columns or close the other spreadsheets to avoid this
becoming a problem.
Columns Names
This lists column names in the current spreadsheet that are duplicated
in other spreadsheets.