Dear Prospective Employer,
I have done previous work using Access which involves importing data from Excel and updating the tables as well via a VBA script. And yes, according to the description, since its 80% completed, the remainder, i.e. this project will require only a couple hours of work. I suggested 4 hours in case we need to tweak a thing or two, hopefully we can update bid once work is completed accordingly, since I want to get the job done right as well as be fair to you as well.
Thanks.