Importing from Excel in 9.1.

In our current production XE environment, our business users can import data from excel 2010. They can include mulitple sheets etc for this process and it works well for them.

In 9.1 it would appear that the only option for importing data (not counting cut/paste) is if they save there spreadsheet to CSV. this only allows you to save one sheet to the CSV.

So my questions;

1 - Is there addtional setup/options something that will allow our business users to continue to import with Excel?

Also, can someone explain why Oracle would take away functionality in an upgrade from XE to 9.1.