@ glen asked: The selected file is NOT a previous year tax file or it is corrupted. Choose a different file and try again. How to fix this?
You didn't say what you are doing or what kind of file you are referring to, so I'll take a guess. Are you trying to transfer-in a *.tax2024 data file that was prepared in desktop software? If so, was it prepared using the Mac software or the Windows software? Was it password-protected (Windows) or encrypted (Mac)? Are you trying to transfer the file into 2025 desktop software or Online TurboTax?