Unhandled Exception: invalid data

[MegaMech]

Unhandled Exception: System.IO.InvalidDataException: Found invalid data while de
coding.
at yamlconv.Program.ConvertFromByaml(EndianBinaryReader reader, String outpat
h)
at yamlconv.Program.ConvertPath(String path)
at yamlconv.Program.Main(String[] args)

Trying to convert MW_SceneDB.byaml from mario maker for Wii U from the file static.pack. I tried a few different files and they have same error.
Rename the attached file from .pdf to .byaml
Any ideas what I may have done wrong?

MushMW_SceneDB.pdf