'where is the packet size in Wireshark packet Size?

I am working on a project to see the difference between two protocols. One of them is HTTP, and I need to know the internet usage to send and receive a request and response. I tried to see the request and response packet size using Wireshark, and I saw a column called length as shown in the figure with the value 1381, and inside the packet, I see file data 177678 bytes which value of them reflects the internet usage and the packet size? I am new to using Wireshark

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httpbytewireshark


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