You can be notified when a NetFiles file has been edited or read by using Subscriptions. Subscriptions give users the ability to request to be notified via email when files or directories, to which that user has read access, are viewed or changed.
Managing active Netfiles Subscriptions
Select the file or folder.
Click Manage > Subscriptions.
Click the New Subscription button.
Select the event for which you want notification and the frequency of the reports.