hi, using the command "cifs sessions" will give you the output of all sessions to the appliance, including computer, user, shares and files...
Alternatively another good method is to use computer management from a Windows Server, and connect to the Filer/Appliance as the computer.
You will need the correct credentials to authenticate, or have a windows account that has admin access to the Filer. Once connected, browse to the shares or open files and voila.
Thanks.