Did "The FBI" Actually Do That Doc-Dump?

During the Packers/Giants game, a document-dump about the Hillary Clinton criminal-server activity showed up.  It was attributed to the FBI.

Did it really come from "the FBI", or was it a slightly irregular release?

And--by the way--did Comey .....ahhh.....  lie about what evidence the FBI actually had in its possession when he closed the investigation the first time?

Curiouser and curiouser.