you can use the send mail task and pass the file name dynamically through expression to task and schedule it as per your requirments.
For example, if you want to attach files, "d:\Data_20070119.xls", use this expression in SendMail Task
FileAttachMent
"D:\\" + "Data_" + REPLACE(SUBSTRING((DT_WSTR, 50) GETDATE(), 1, 10), "-","") + ".xls"
you should use "\\" instead of "\"..