"ImportFBX Errors: * Unexpected file type" errors are thrown when importing FBX animations

Unity: Asset Importers

2023.3.X

2023.2.X

2023.1.X

2022.3.X

2021.3.X

How to reproduce:
Open the attached project

Expected results: No errors thrown in the Console window
Actual results: "ImportFBX Errors: * Unexpected file type" errors are thrown

Reproducible with: 2021.3.31f1, 2022.3.11f1, 2023.1.17f1, 2023.2.0b14, 2023.3.0a11

Reproducible on: Windows 11 22H2
Not reproducible on: No other environment tested