Append Date to csv file name!

When I execute the package I get the following error, Could someone help me solving this issue.

I have used the delimited format.

[Connection manager "Flat File Connection Manager"] Error: Format "C:\Users\kolanud\Documents\DailyMortgage.csv2013-01-17.csv" is not supported by Flat File Connection Manager. Supported formats are Delimited, FixedWidth, RaggedRight, and Mixed.

Thanks,

Ankitha