Files with dlf suffix can be most often found as firmware update files for Belkin routers and perhaps other devices from this vendor.
There are 2 other file types using
the DLF file extension!
.dlf - DataCAD double precision layer file
.dlf - FlashFXP default language file
DLF file extension - Belkin router firmware update
What is dlf file? How to open dlf files?
File type specification:
File extension dlf is associated with routers and other network devices manufactured by Belkin - an American manufacturer of consumer electronics.
A .dlf file stores router firmware update data that are used to add new features, fix bugs or repair software and settings in the router.