A hcu file extension is associated with the Logitech Harmony, a universal remote controller. A hcu file stores update.
There is one other file type using
the HCU file extension!
.hcu - HydroCAD hydrograph units definitions file
HCU file extension - Logitech Harmony update
What is hcu file? How to open hcu files?
File type specification:
The hcu file extension is related to Harmony universal remote controller range of products from Logitech.
The hcu file contains some configuration data used by the device.
Most likely some old format without support. No further information could be found.
This hcu file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.