title: To check for the modified date of the file on file system and get the latest file
body: <p>We have a SQL SSIS package setup which is being run manually when needed.  This will grab two CSV from the file system and process them to import data to sql table. This should be run once a month when the CSV file is updated. 
  Now I would like to automate this process.  I want to add a step to the existing job that should check for the modified file dates (of two particular files) and compare it to the Today's date and if true, proceed to the next step otherwise not.  I am not sure how to check for the modified date of the files (two files) on the file system and compare to today's date.  Any thoughts on how to accomplish this?  Thanks!!</p>