Imported mesh animation

Hello out there
somehow, when I add a mesh in my scene, and transform it, it automaticly adds an animation to it…
(all transforms turn yellow)

what did I do wrong???
where can I disable that function???

It seems that autokey is enabeled in your star file.


Auto Keyframe is the record button in the Timeline header.

Thanks a lot Skuax, that was the one!!!
have a nice day