Fusion files do not open!

The link provided in the project Readme.md shows:

<img width="530" height="310" alt="Image" src="https://github.com/user-attachments/assets/a1f6ca57-4578-47a9-9f73-d23f067ddf1c" />

and the files uploaded to GrabCad do not open in Fusion and gives this error:

<img width="457" height="318" alt="Image" src="https://github.com/user-attachments/assets/a7a1ed86-d499-4feb-b1e8-88a19aabc901" />