File says this is not a sketchup model. can someone help?

Somebody help, i can’t open my file, its says ” this does not appear to be a sketch up model”

Capture d’écran 2024-04-06 à 09.32.13

well it’s filled with 0

it’s not even formated like a sketchup file, it’s just en empty file.
same for the skb.

no idea where you stored them, but they are both completely hollow.