Manipulating data imported via Rapidstart

I know that Rapidstart is designed to import/export data to/from NAV. Is there any way to manipulate that data as it is being imported from Excel. I have been using XMLports and Reports (importing to a temp table) to get this done but I am now looking for a way to automate this on the import so it will populate (ex. journals) so the user can run an object off their Dashboard.

Thanks

P.S.