Microwave stuff usually is "tuned" for the specific application and without further documentation (like PCB substrate material dielectric parameters, operating frequency, etc.) the stuff in the lib is pretty useless.
Here's what I can (and can't) identify from looking at the footprints and their dimensions:
ALIM - ???
C41485CC - ??
C41485MM - ??
C7812 - ?? (probably SO-8 SMT)
CC08CC - 0805 SMT device
CC08CM - 0805 SMT device (most probably with pad 2 to be tied to GND)
CC08ZM - probably same as CC08CM
CC08ZZ - 0805 SMT device with widening pads to match microstrip track width
CC12** - same as CC08, but for 1206 SMT device
GAP - ??
POS - fiducial?
RAID - ??
SMA - probably SMA connector that never got finished
STUBCC - microstrip stub (to be shortened to GND with vias)
STUBCO - microstrip stub (open)
THROU - via?
My 2 cents: Drop it.