files wont open

Ameqc's icon

go down to jean-francois charles. i downloaded all of them, and all of them except for freeze-slide, freeze-tail, freeze-denoiser and melody-to-harmony have files that cant be opened with max.
as for the 4 folders i mentioned that do have openable files, it just says "max has encountered and error and needs to close, etc etc"

can someone please explain this to me