Wireshark problem

Where I can find the pcap extensions or the protocol that I need to open in Wireshark?How open these files.I can t understand how can i open and find them from the ethical hacking course

Hi Arix, a pcap file is a file with packets captured. Usually you’d run Wireshark or another packet capture tool. That will capture some packets which you can then save as a file.pcap.

Then you can open the file.pcap with Wireshark or other similar tools.