Want to know what Account Periods were created from a uploaded Statement?
Go to the Account Periods view on the Bank Statements screen. Here all the created Account Periods are shown, with an icon for the file. Clicking this icon opens up the uploaded file that created the account period.
If you type the file name into the 
at the top of the screen, it will show all the account periods that are linked to that file. Note, to get a list of the files uploaded for your engagement, go to the Files view on the Bank Statements tab.