Check the "Use dates to hide files" option
to enable the file date filter. Then, you can hide files
modified before or after a
given cutoff date.
The cutoff date may be expressed as a fixed number of days
relative to 12AM on the current computer, or as a specific date
and time.
An option may force the file matching the file date filter
criteria to be present in all defined sources
to be hidden.
Files matching the
date criteria won't be displayed on screen unless the user
specifies it (Show hidden items in the Folders
Display Options). If displayed, such files will have the
background coloured defined for 'ignored' items.