Files with fwu extension can be generally found as firmware updates for RICOH devices.
There is one other file type using
the FWU file extension!
.fwu - Xilinx iMPACT firmware upgrade
FWU file extension - Ricoh firmware update
What is fwu file? How to open fwu files?
File type specification:
File extension fwu is associated with some devices (digital cameras, film cameras, printers, projectors, etc.) developed by Japanese company called Ricoh.
A .fwu file stores firmware update for these devices.