Ar(2p) and Ar(1s) total electron yield and total ion yield spectra of
supersonic beams of Ar clusters with average size between 1 and 750 at
oms are reported. The near edge features evolve with increasing cluste
r size from atomic-like Rydberg states to solid-like excitonic states.
EXAFS in the Ar(2p) and Ar(1s) continua of Ar clusters is analysed.