TShark
Here are some examples:
$ tshark -r test.pcap -T fields -e frame.number -e eth.src -e eth.dst -e ip.src -e ip.dst -e frame.len > test1.csv
$ tshark -r test.pcap -T fields -e frame.number -e eth.src -e eth.dst -e ip.src -e ip.dst -e frame.len -E header=y -E separator=, > test2.csv
$ tshark -r test.pcap -R "frame.number>40" -T fields -e frame.number -e frame.time -e frame.time_delta -e frame.time_delta_displayed -e frame.time_relative -E header=y > test3.csv
$ tshark -r test.pcap -R "wlan.fc.type_subtype == 0x08" -T fields -e frame.number -e wlan.sa -e wlan.bssid > test4.csv
$ tshark -r test.pcap -R "ip.addr==192.168.1.6 && tcp.port==1696 && ip.addr==67.212.143.22 && tcp.port==80" -T fields -e frame.number -e tcp.analysis.ack_rtt -E header=y > test5.csv
$ tshark -r test.pcap -T fields -e frame.number -e tcp.analysis.ack_rtt -E header=y > test6.csv
