Importing / updating most recent datafile

I will be recieving daily .csv files that I want to import into my model as efficiently and accurately as possible.

The two files are EXTRACT1_date and EXTRACT2_date, such that I will have a library that looks like this:

EXTRACT1_052108
EXTRACT2_052108
EXTRACT1_052208
EXTRACT2_052208
EXTRACT1_052308
EXTRACT2_052308 etc.

Is there a way I can set the data import wizard to pick the most recent files and import them on launch?

I am not sure if it matters, but I will be opening EXTRACT1 on the first tab of my workbooks and EXTRACT2 on the second. Another workbook will be linked to this worksheets and will contain the model logic.

Thank you for looking!