powershell - how to auto add and remove dhcp reservation with csv

Question

my client.csv format is:

ScopeId,Name,ClientId,Ipaddress 10.10.10.0,Computer1,1a-1b-1c-1d-1e-1f,10.10.10.10 10.10.10.0,Computer2,2a-2b-2c-2d-2e-2f,10.10.10.11 10.10.1