I parsed this file in C:

https://www.cloudshark.org/captures/19585c567c37

However, I had to skip the first 76 bytes to reach the first byte (ff) they show in the “Ethernet II” section:

In the above screenshot, the bottom section shows the bytes as hex.

I don’t understand why Wireshark isn’t showing the 76 bytes I had to skip. Are these part of “Frame 1”?

I’d like to understand how I’m supposed to parse these 76 bytes and also why Wireshark doesn’t show them?