Parsing Protocol-Buffers without knowing the .proto

Question

I know that protocol-buffers are a serialized format that requires a message format in the .proto in order to read back properly. But I have a file that I do not know the proper

Answer 1

I found it useful to convert the raw message to text using protoc --decode_raw < file. If the file actually contains multiple (length-prefixed) messages, save them into separate files first.