Formatting the ADP Phone number

I am assisting our PAyroll folks who use ADP (PCPW) with a report which will be used t ogenerate an interface file. To the best of my understanding, the AreaCode and Phone Number are two seaparate fields (we have them as separate fields in our upload). Our Payroll use is now running a ReportSMith report to extract data - she is able to get the hone number selected, but is also getting the "Areacodephone#" as a single field? My questions are:
1) Can we extract the area code as a separate field?
2) When there is NO value for areacodephone#, the format mask is still returned (i.e. the brackets are returned "()". How can we get thsoe removed?

Thanks for your help.