1. Up to version 1.90 questions were exported as CSV files. In 1.90 we switched to an XML based file type.
Still both types can be imported (of course you can't import an XML file at the old 1.8x versions).
2. You can always import questions using the import section at the bottom of the "add question" screen. You can also easily copy existing questions at the latest versions.
Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support) Need Help? We offer
professional Limesurvey support Contact: marcel.minke(at)survey-consulting.com'"