In the indicated line there is an unexpected extra column. Specifically between the member column, and what should be the reason column, M:System.Net.Sockets.Socket.CheckTransmitFileOptions(System.Net.Sockets.TransmitFileOptions), is present.
Probably want to fix that, although I suspect it has no ill-effect as-is.
https://github.com/dotnet/platform-compat/blob/e15a96bae405c0c5d4d2ba59da75d7a47cc24533/etc/exceptions-exclusions.csv#L79
In the indicated line there is an unexpected extra column. Specifically between the member column, and what should be the reason column,
M:System.Net.Sockets.Socket.CheckTransmitFileOptions(System.Net.Sockets.TransmitFileOptions),is present.Probably want to fix that, although I suspect it has no ill-effect as-is.