HELP! making video game assets 3D print ready!

Is there anyone who can help me fix this one video game asset so that I can 3d print it, it has holes in it and missing geometry when loading it up in blender & it isn’t solid. Anyone who can help do this I love u

The file seems to be corrupt. I’ve loaded it into Blender as well as several .stl online viewers and it shows nothing.

Could you instead upload the .Blend file?