19.15. Internationalization
Only two resource bundle keys are used. Both are for invalid data formats, and both take a parameter that defines the invalid value.
org.jboss.seam.excel.not_a_number
— When a value thought to be a number could not be treated as such.org.jboss.seam.excel.not_a_date
— When a value thought to be a date could not be treated as such.