DS-User F1 Help for GUI (Context-Sensitive) : Exclude Old Files screen
 
Exclude Old Files screen
Use this screen to exclude old files from backup for the corresponding backup set. (Note: The age of a file is determined by its “Last Modified” date.)
 
No exclusion
 
Exclude files older than [...] days / weeks / months / years
At backup time, files older than the specified age will be excluded.
Note: If the backup fails, the exclude period will be extended to reflect the conditions of the failed backup, until a successful backup is completed.
Exclude files older than [date]
All files older than the specified date will be excluded from backup.