Asp.net/Vb.net Excel upload to SQL

I'm looking for a simple page in asp.net/vb.net that allows me to import an excel document into an existing MSSQL database.? I only need 4 fields imported (FirstName, LastName, PhoneNumber, and Email).? I need to insert only unique PhoneNumber (in case the user is already there) and if the phone number is already there, loop to the next record to import it instead (to avoid duplicates).? I'd like to browse to an excel document, upload it, see the contents in a datagrid and press another button to "insert into database".? That's it...