Sending bunch of commands from txt file in Expect

How to send bunch of commands to Cisco router from txt file like:

configureclass-map match-any popc_fiberpower004_booster_v4 match access-group ipv4 bng_permit_v4 match access-group ipv6 bng_permit_v6end-class-mappolicy-map popc_fiberpower004_booster_v4_in class popc_fiberpower004_booster_v4  police rate 110 mbps  set dscp 0 class class-defaultend-policy-map

And of course from Expect script via telnet.Thank you in advance for help.