Yes you can, once the bank rec has been done, you'll get an info box come up saying about the report of the reconciliation. It's has 'summary' 'detail' and 'both' choose what ever you want then press display.
Then when you have the windows up you should see at the top of them the magic button 'excel' click that and export like you normally would.
I have created a bank current account activity report which lists as debits and credits all the bank entries for a particular month (obviously you can change this to be whatever month you are working on). When you run this you then get the option to export to Excel as Gary mentioned above.
Don't think you can export from the bank rec window per se.